PPP Specialists

The Invesis Team

International expertise. Local knowledge. Long-term perspective.

We employ more than 120 skilled infrastructure investment specialists and PPP experts with deep local market knowledge located in eight offices across the Netherlands, Belgium, UK, Ireland, Germany and Australia.

Having this expertise in-house and in-market ensures you have access to the highest-quality advice and information possible.

Alison Buchan

Alison joined Invesis in 2024 as an Accounts Assistant and progressed into the Management Accountants team in 2026. As Operational Finance Manager, she supports the financial operations of PPP projects across the UK and Ireland, ensuring accurate reporting and strong financial oversight. Alison is currently studying towards her ACCA qualification.

Alison Buchan

Operational Finance Manager
Alison Johns

Alison is a Chartered Accountant with more than 17 years' experience at Invesis. She leads the Operational Finance team across the UK and Ireland, overseeing financial reporting, governance and control for bid companies and SPVs. Known for her analytical approach and leadership skills, Alison plays a key role in supporting the long-term success of the business.

Alison Johns

Operational Finance Director
Alison Stewart

Alison is a Chartered Management Accountant with over 25 years' experience in PPP projects. She leads all financial aspects of Invesis' tender opportunities, delivering robust investment and financing structures for major infrastructure projects internationally. Alison has supported landmark projects including Silvertown Tunnel in London, Cross River Rail in Australia and the Burgdorf Prison Project in Switzerland.

Alison Stewart

Head of Project Finance
Allan Moultrie

Allan joined Invesis' Operational Finance Team in April 2026. His responsibilities range from invoicing and payment processing to tax reporting and interest calculations. Prior to Invesis, Allan worked for FES Group and OCS Group UK. With experience in management accounts, tax reconciliations & cashflow forecasting. Allan is currently working towards achieving a chartered accountant qualification with the ACCA.

Allan Moultrie

Accounts Assistant
Andreas Marschall

Andreas has been active in the PPP sector for over 20 years, and is a member of the German Management Team and the Origination Leadership Team. He has delivered multiple projects across road infrastructure, healthcare, security and digital infrastructure. Andreas holds a Master's degree in Industrial Engineering, and leads the finance working committee of the German federal PPP association (BPPP).

Andreas Marschall

Head of Project Finance - Germany
Andreas Schröder

Andreas joined Invesis in 2009 and is now a Senior Investment Manager within the Business Development team for the German-speaking region. He supports the development and delivery of infrastructure investment opportunities, bringing extensive experience across PPP projects and stakeholder collaboration.

Andreas Schröder

Senior Investment Manager
Anita van Miltenburg

Anita joined Invesis in October 2025 as Office Manager for the Netherlands and Belgium business unit. She enjoys organising, connecting people, and creating a welcoming workplace. With a broad professional background, she thrives on collaboration, learning, and supporting colleagues to do their best work.

Anita van Miltenburg

Office Manager
Anouk Hubin

Anouk joined Invesis in 2023 and works on international PPP and project finance transactions across complex infrastructure projects. As Senior Legal Manager, she combines legal, commercial and strategic expertise to support project delivery across multiple jurisdictions. Outside work, Anouk enjoys swimming, reading and travelling.

Anouk Hubin

Senior Legal Manager
Barbara de Weijer

Barbara joined Invesis in 2023 as Executive Assistant, supporting the CEO and COO. With experience across corporate and research environments, she is recognised for her organisational skills, professionalism and stakeholder management expertise, helping support executive leadership and complex international business activities.

Barbara de Weijer

Executive Assistant
Beatrix Goldstein

Beatrix is Chief Operating Officer (COO) at Invesis Group with responsibility for operations, ESG, insurance and risk management and IT. In this role, she works closely with the Board and shareholder to strengthen governance, enhance operational performance and support the long-term value creation of Invesis portfolio of infrastructure investments.

Beatrix Goldstein

Chief Operating Officer
Bill Harkins

Bill has more than 25 years' experience delivering major PPP infrastructure projects across the UK and Ireland. As Business Development Director, he leads origination activities across core and emerging investment sectors. Bill has successfully tendered over 30 PPP projects, including Silvertown Tunnel in London and Brisbane Cross River Rail, and is recognised for building strong strategic partnerships that deliver lasting social and environmental value.

Bill Harkins

Business Development Director
Cameron McMillan

Cameron McMillan joined Invesis in May 2026 as an Accounts Assistant, supporting finance activities across UK and Ireland projects. His responsibilities include tax, invoicing, reconciliations and payment processes. Cameron brings experience across shipping, commercial and contract environments and is looking forward to expanding his knowledge of the PPP sector further.

Cameron McMillan

Accounts Assistant
Catalina Puentes Diaz

Catalina joined Invesis in 2024 as ESG Manager, bringing more than 14 years' experience in sustainability and environmental management across Chile and the UK. She leads ESG reporting and supports the implementation of sustainability initiatives across the business and portfolio. Outside work, Catalina enjoys yoga, running, travelling and spending time with family and friends.

Catalina Puentes Diaz

ESG Manager
Catherine Sinnott

As Office Manager, Catherine provides vital support to the Irish team, helping ensure the smooth day-to-day operation of the business. She also provides administrative support for PPP infrastructure projects throughout Ireland, helping the delivery team maintain effective and successful delivery.

Catherine Sinnott

Office Manager/Project Administrator
Charlotte Upton

Charlotte joined Invesis in 2021 and supports the UK and Irish bidding and operations teams. A qualified solicitor since 2008, she has extensive infrastructure experience, including advising sponsors and lenders on PPP financings, refinancings, operational matters, acquisitions and disposals. She has worked on almost every PPP project in Ireland, alongside numerous other infrastructure and renewable energy projects.

Charlotte Upton

Senior Legal Manager
Chris Williams

With over two decades of experience in the PPP sector, Chris has been integral to Invesis since joining in 2005 as Finance Manager. Following seven years with PwC in Edinburgh and London, his career trajectory within the company saw him appointed Investments Director in 2009, Finance Director in 2016, and ultimately, Chief Executive Officer in November 2022.

Chris Williams

Chief Executive Officer
Christian Höche

Christian joined Invesis in 2010 and now leads the German legal department. He oversees the legal aspects of bidding, financing, construction and maintenance for major infrastructure projects, while also advising on wider business strategy and corporate legal matters. His experience includes work on the Administrative Center Burgdorf, Bremervörde Prison, University Hospital Schleswig-Holstein, Availability Model A94 and Availability Model A10/A24.

Christian Höche

Head of Legal Services
Christina O’Neill

Christina joined the Glasgow team in 2026 as an Accounts Assistant supporting the UK and Ireland business unit. With previous experience in accounts management within the private property sector, she is focused on developing her expertise while supporting the wider finance team.

Christina O’Neill

Accounts Assistant
Claire Logan

Claire is a Chartered Management Accountant with more than 23 years' finance experience, including 16 years specialising in PPP projects. She leads a team delivering financial reporting and control across SPVs within the Invesis portfolio and has played a key role in major infrastructure projects, including Silvertown Tunnel in London.

Claire Logan

Operational Finance Director
Claire Wylie

Claire is an Investment Coordinator supporting Invesis' UK and Ireland bid management teams. With 18 years at Invesis, she brings extensive PPP knowledge and experience. In addition to her bid support role, Claire administers the company's CRM platform, helping enhance business development processes and team collaboration across the organisation.

Claire Wylie

Investment Coordinator
Courtney McLaughlan

Courtney joined Invesis in 2021 after qualifying as a Chartered Accountant with ICAS. She oversees financial reporting and compliance across operational PPP projects in sectors including roads, justice and education, bringing strong technical expertise and experience from a background in audit.

Courtney McLaughlan

Senior Operational Finance Manager
Damian Conway

An Investment Manager within the Origination team, Damian Conway specialises in the development and delivery of PPP infrastructure investments across the UK and Ireland. A Chartered Civil Engineer with over 20 years' experience, he combines technical, commercial and financial expertise to support bid activities, stakeholder engagement and the progression of projects from early opportunity through to financial close.

Damian Conway

Investment Manager
Daniel de Weerdt

Daniel de Weerdt has over 30 years' experience in engineering, infrastructure, maintenance and asset management. He supports the development of technical strategies, asset performance and operational reliability across complex infrastructure and PPP projects. Daniel specialises in maintenance optimisation, risk management, technical due diligence, and delivering sustainable, long-term solutions that enhance infrastructure performance and resilience.

Daniel de Weerdt

Project Manager
Danny Hommersen

Danny joined Invesis in 2017 and is now Project Director within the Netherlands and Belgium business unit's Project Delivery Team. He supports the delivery of complex infrastructure projects, bringing strong project management expertise and extensive experience across PPP developments.

Danny Hommersen

Project Director
David Swarbrick

David Swarbrick serves as the Chief Investment Officer (CIO) for the Invesis Group, a position he assumed in April 2023. He joined Invesis in 2020 as the Managing Director for the UK and Ireland.

David Swarbrick

Chief Investment Officer
Dayle Hassan

Dayle joined Invesis in 2019 and oversees financial compliance across UK and Ireland PPP projects spanning multiple sectors. A qualified Chartered Accountant, he also supports the company's forecasting processes and brings valuable experience from both practice and industry.

Dayle Hassan

Senior Operational Finance Manager
Declan Gallagher

Declan Gallagher has extensive experience in the PPP sector, spanning project finance, commercial management, construction delivery and operations. He oversees infrastructure projects across Ireland, managing stakeholder relationships, operational performance, compliance and lifecycle activities. With a strong background in financial and project management, Declan is recognised for delivering practical solutions and positive outcomes for clients and project partners.

Declan Gallagher

Ireland SVP General Manager
Dennis Kok

Dennis joined Invesis in 2013 and was promoted to Senior Operational Finance Manager in 2026. He is responsible for several operational projects across the Netherlands and Belgium, including the Evara Schools project. Dennis also played a key role in the selection of Invesis' new ERP system, drawing on his extensive experience in financial administration and complex finance management.

Dennis Kok

Senior Operational Finance Manager
Dieter Van Hassel

Dieter Van Hassel has over 20 years of experience in infrastructure investment, PPPs and DBFM/DBFMO projects across Europe. As part of the Belgian bidding team, he leads the origination, structuring and delivery of complex infrastructure transactions. His background spans project finance, real estate and advisory services, combining commercial, technical and strategic expertise across major infrastructure developments.

Dieter Van Hassel

Senior Investment Director
Dirk Declercq

Dirk Declercq has extensive experience in infrastructure and PPP projects across the Netherlands and Belgium. He leads the delivery of complex projects, working closely with clients, contractors and stakeholders to achieve successful outcomes. His expertise spans project management, commercial oversight and operational performance, supporting long-term value creation.

Dirk Declercq

Project Director
Dominique van der Span

Dominique van der Span has over 30 years' experience across social infrastructure, real estate and PPP, with strong expertise in project finance and project management. Based in Brussels, she leads business development and bid activities across Belgium and the Netherlands, working with multidisciplinary teams and partners to secure sustainable infrastructure projects that create long-term value for communities.

Dominique van der Span

Business Development Director
Christian Ostendorf

Christian specialises in structured finance, PPPs and sustainable infrastructure investment. Combining academic expertise with practical transaction experience, he supports complex infrastructure projects and is particularly passionate about innovative financing solutions that contribute to long-term economic and environmental sustainability.

Dr. Christian Ostendorf

Finance Manager
Dr Maximillian Klammer

Dr Maximilian Klammer provides legal support across Invesis' infrastructure and PPP activities, advising on project development, procurement, financing and contract management. Working closely with multidisciplinary teams, he helps manage legal risk and support successful project delivery. His expertise contributes to the development of sustainable, long-term infrastructure solutions.

Dr. Maximillian Klammer

Legal Manager
Eilidh Wilson

Eilidh is a Project Director with extensive experience across PPP/PFI operations, project management and facilities management. She oversees operational projects across the UK and Ireland spanning the justice, education and healthcare sectors. Passionate about health, safety and wellbeing, Eilidh is recognised for building strong stakeholder relationships and driving operational excellence.

Eilidh Wilson

Project Director
Endo van de Graaf

Endo specialises in project finance and PPP infrastructure projects across the Netherlands and Belgium. With a background in audit, he brings expertise in financial modelling, lender reporting and complex financing structures, working closely with investors, banks and project partners to deliver compliant financial solutions.

Endo van de Graaf

Senior Operational Finance Manager
Eric de Sauvage Vercour

Eric is a Senior Investment Manager based in Belgium with extensive experience in PPP and DBFM projects. He supports origination, bid development and transaction execution across infrastructure investments, combining commercial insight, financial expertise and stakeholder management to deliver robust, value-driven projects.

Eric de Sauvage

Senior Investment Manager
Felix Ruhrberg

Felix joined Invesis in 2017 and is part of the Operations and Maintenance team in Germany. He specialises in heavy maintenance for highway projects, supporting tender processes, strategy development and quality management while helping optimise life-cycle costs and operational performance.

Felix Ruhrberg

Project Manager
Ferdinand Blum

Ferdinand Blum joined Invesis in 2021 and is part of the German bid management team. He studied International Civil Engineering, including time abroad in South Korea and professional experience in Africa. He supports the preparation and development of PPP projects in Germany.

Ferdinand Blum

Investment Manager
Gareth Thomson

Gareth is a Chartered Public Finance Accountant with more than 20 years' experience in PPP and project finance transactions. He leads financial structuring and delivery across complex infrastructure projects and has supported major developments including Silvertown Tunnel and Higher Education Bundle 2.

Gareth Thomson

Senior Project Finance Manager
Geert Deleebeeck

Geert Deleebeeck is a Project Director within Invesis' Netherlands and Belgium business unit. He is responsible for the management and performance of key PPP projects, including Egied van Broeckhoven, Beveren and Dendermonde Prisons and Ghent Student Accommodation. Geert works closely with clients, contractors and stakeholders to support successful project delivery and long-term operational performance.

Geert Deleebeeck

Project Director
Geraldine Meikle

Geraldine is a Senior Operational Finance Manager with almost 14 years' experience at Invesis, supporting PPP projects across the UK and Ireland. ICAS-qualified since 2011, she combines strong technical expertise with a practical, people-focused approach. She supports portfolio performance through operational oversight and forecasting, drawing on a background in audit, compliance, controls and financial management.

Geraldine Meikle

Senior Operational Finance Manager
Gerrit Huurman

Gerrit is an IT Business Partner specialising in modern workplace solutions, cloud platforms and infrastructure. He focuses on delivering practical and scalable technology solutions that support secure, efficient and future-proof ways of working across the business.

Gerrit Huurman

IT Business Partner
Grace White

Grace joined Invesis in March 2026 as a Project Analyst, supporting the delivery and management of operational PPP projects across the UK. She previously worked in property portfolio and client management, overseeing maintenance and health and safety compliance. Grace brings strong organisational, communication and relationship management skills and enjoys working collaboratively to support successful project outcomes.

Grace White

Project Analyst
Hanno Dubbeldam

Hanno Dubbeldam has over 20 years of legal experience, specialising in PPP and DBFM(O) projects across the Netherlands and Belgium. He is also increasingly involved in projects across other European markets, helping translate complex issues into practical solutions. Hanno combines legal expertise with a pragmatic approach and enjoys working with multidisciplinary teams and international stakeholders to achieve successful outcomes.

Hanno Dubbeldam

Senior Legal Manager
Hans Juncker

Hans joined Invesis in 2010 and has overseen some of the largest infrastructure projects in Germany. He has played a key role in developing the Operations and Maintenance function, leading tender processes and developing lifecycle, quality and risk management strategies. His background in civil engineering, construction and contract management supports the successful delivery and long-term performance of infrastructure projects.

Hans Juncker

Asset Management Director
Harm-Jan Bakker

Harm-Jan is responsible for operational financial management across multiple PPP projects in the Netherlands and Belgium. A Chartered Accountant with previous experience at Deloitte and EY, he combines strong technical expertise with a passion for large-scale infrastructure investment.

Harm-Jan Bakker

Senior Operational Finance Manager
Heleen Joustra

Heleen joined Invesis in 2022 and manages PPP bids across Belgium and the Netherlands. With academic backgrounds in civil engineering and technology management, she combines technical understanding with commercial insight to support the successful delivery of complex social infrastructure projects.

Heleen Joustra

Senior Investment Manager
Helen McCarthy

Helen has over 35 years' experience in design, construction, project management and leadership, including 20 years in PPP. She specialises in developing infrastructure investment opportunities across the UK and Ireland, with a strong track record in bid management, stakeholder engagement and project delivery. Helen is recognised for building successful teams and creating long-term value for clients, partners and investors.

Helen McCarthy

Senior Investment Director
Hilde Brouwer

Hilde joined Invesis in 2025 and brings extensive international experience across the travel, technology and FMCG sectors. With expertise in people and team development, organisational design, employee engagement and change management, she works closely with colleagues across the business. Hilde is passionate about creating positive organisational impact through collaboration, innovation and sustainable people-focused solutions.

Hilde Brouwer

Head of Human Resources
Iain Harris

Iain oversees the operational management of Invesis' UK portfolio. With more than 30 years' experience in asset management and project delivery, he has worked across healthcare, justice, education and transport infrastructure projects throughout their bid, construction and operational phases.

Iain Harris

Asset Management Director
Isobel Taylor

Isobel joined Invesis in 2022 and supports the management of operational PPP concessions across the UK. She works closely with stakeholders to drive strong project performance and successful outcomes. Isobel has played a leading role in the Peacehaven Schools handback process and in improving concession performance at Camden BSF, demonstrating her growing expertise in project delivery and stakeholder management.

Isobel Taylor

Senior Project Manager
Janet Man

Janet is a Project Director at Invesis with over 19 years' experience in asset management & maintenance, bid management and project delivery across both public and private sectors. She has extensive experience in infrastructure and building projects from bid phase through project delivery, and is known for her structured approach, stakeholder alignment, and ability to drive delivery across complex and multidisciplinary teams.

Janet Man

Project Director
Jennifer Kaney

Jennifer joined Invesis in 2015 and manages the financial operations of UK and Irish SPVs and a Local Education Partnership. A qualified Chartered Accountant, she specialises in financial reporting, compliance and strategic forecasting, while also supporting colleague wellbeing as a qualified Mental Health First Aider.

Jennifer Kaney

Senior Operational Finance Manager
Jesse Putzel

Jesse joined Invesis in 2024 and has over 20 years' experience in sustainability across the public and private sectors. He works with the board, shareholder and business units to advance ESG and sustainability objectives. His background spans real estate, construction, consultancy and government, with expertise in net zero, climate action, social impact, governance and sustainable business strategy.

Jesse Putzel

Head of ESG
Johan Vergeer

Johan Vergeer is a civil engineer with more than 30 years' experience delivering complex, privately financed infrastructure projects across Europe. His expertise spans the full project lifecycle, from bid development through to construction, commissioning and operations. He leads Invesis' involvement in the Afsluitdijk project in the Netherlands and also supports origination activities and serves as a Non-Executive Director.

Johan Vergeer

Senior Project Director
Jonasz Pedryc

Jonasz is a Project Finance Manager in the Australia and New Zealand team, supporting the origination, due diligence and financial modelling of complex infrastructure and PPP-style investments. He has significant experience across the HAFF submission and review process and has played key roles in projects including Ground Lease Model 2 in Victoria and multiple HAFF projects in New South Wales. Prior to joining Invesis, Jonasz worked across Big 4 and mid-tier advisory firms, specialising in valuations, financial modelling, due diligence and transaction analysis.

Jonasz Pedryc

Project Finance Manager
Joost de Vos

Joost de Vos is an Accounts Assistant within Invesis' Netherlands and Belgium business unit. He supports the financial administration of operational PPP projects, contributing to accurate reporting, financial controls and day-to-day finance activities.

Joost de Vos

Accounts Assistant
Joris van Papenrecht

Joris van Papenrecht joined Invesis in 2006 and advises on strategy, governance and complex corporate matters across the business and its portfolio. Combining legal, commercial and strategic expertise, he supports board-level decision-making, restructuring initiatives and investment activities. Joris played a key role in establishing and developing the Invesis investment platform and is recognised for turning complex challenges into practical solutions.

Joris van Papenrecht

Strategy Director & Corporate Counsel
Joseph Lennon

Joseph joined Invesis in 2021 and supports the delivery of PPP projects across the accommodation and roads sectors. He has played a key role in both operational and construction-phase projects, working closely with stakeholders to achieve successful outcomes. Joseph also holds a Master's degree in Quantity Surveying with first-class honours.

Joseph Lennon

Senior Project Manager
Karen Liddell

Karen joined Invesis in 2022 as an Accounts Assistant within the UK and Ireland business unit, bringing more than 20 years of finance experience. She supports the financial management of PPP projects through reporting, reconciliations and transaction processing, helping to ensure accurate and compliant financial operations. Karen also maintains strong relationships with external stakeholders.

Karen Liddell

Accounts Assistant
Karishma Vartak

Karishma is an HR professional with more than 10 years' experience across IT, FMCG and international business environments. At Invesis, she supports HR operations and projects focused on colleague engagement, talent management and organisational improvement. Outside work, Karishma enjoys travelling, exploring new cultures and spending time with family and friends.

Karishma Vartak

HR Manager
Kasper Aalbregt

Kasper Aalbregt joined Invesis in 2018 and has over 20 years of experience in finance, treasury and tax. He leads the central finance function, overseeing forecasting, reporting, liquidity management, tax and financial systems. Kasper works closely with colleagues across the business to develop practical solutions that support effective financial management and long-term business performance.

Kasper Aalbregt

Head of Central Finance
Kathlyn Crafford

Kathlyn Crafford joined Invesis in 2025 and has more than 10 years' experience in PPPs, spanning asset management, infrastructure investment and project delivery. Based in Sydney, she has worked across a diverse range of infrastructure sectors, including transport, education, healthcare and justice. Kathlyn brings extensive experience in project governance, stakeholder management and the long-term performance of infrastructure assets.

Kathlyn Crafford

Asset Management Director

Koen Wouters

Senior Operational Finance Manager
Kris Laureys

Kris is Project Director at Invesis and is recognised for his pragmatic, solution-focused approach to infrastructure delivery. Combining strong asset management expertise with hands-on project experience, he focuses on stakeholder alignment, risk management and delivering practical outcomes.

Kris Laureys

Project Director
Larry Mackey

Larry has more than 40 years' experience delivering major civil engineering and PPP infrastructure projects across the UK and Ireland. He oversees operational delivery during construction phases, ensuring safety, quality and environmental standards are achieved while meeting client and investor expectations. He is currently the Quality Director for the Silvertown Tunnel Project in London.

Larry Mackey

Project Manager
Laura McEwen

Laura McEwen is a Marketing and Communications Manager with 9 years' experience in marketing communications, content creation and stakeholder engagement. Since joining Invesis in 2019, she has successfully delivered marketing and communications activities that enhance brand visibility, engage key audiences and support wider business objectives across multiple communication channels.

Laura McEwen

Marketing and Communications Manager
Laura Smith

Laura leads a team of Accounts Assistants supporting the financial operations of PPP projects across the UK and Ireland. With more than 13 years at Invesis and qualifications in accounting and information management, she plays a key role in supporting accurate reporting, operational oversight and year-end audit processes.

Laura Smith

Team Leader Accounts Assistants
Laura Warnock

Laura is a qualified solicitor with 14 years' experience supporting infrastructure projects across the UK and Ireland. Her expertise spans education, justice and healthcare projects, where she supports legal delivery, asset management and bid activities. Outside work, Laura enjoys travel, sports and spending time with family.

Laura Warnock

Legal Manager
Leanne Leckie

Leanne joined Invesis in 2015 and supports the financial operations of multiple SPVs and PPP projects. Known for her organised and detail-oriented approach, she manages accounting processes, reconciliations and stakeholder coordination across complex multi-entity structures.

Leanne Leckie

Accounts Assistant
Liselotte Koppenol

Liselotte joined Invesis in 2021, bringing experience in bid management and risk management from the Royal BAM Group. She has played a key role in delivering major education and justice projects, supporting successful contract and financial closes. Having also helped establish Invesis' presence in Australia, Liselotte now supports strategic bids across the Netherlands and Belgium.

Liselotte Koppenol

Investment Director
Luciënne van Raaij

Luciënne joined Invesis in 2026 and supports the development of people, teams and organisational capability across the business. Her experience spans international commercial, engineering and product environments, with expertise in leadership development, organisational change and talent acquisition. Luciënne works closely with leaders and teams to deliver practical people solutions that support business objectives and employee growth.

Luciënne van Raaij

HR Business Partner
Maarten van der Bent

Maarten is a Chartered Accountant with 40 years' experience in accounting and finance across the banking, construction and PPP sectors. He specialises in project finance, investment structuring and refinancing, supporting major infrastructure and accommodation projects in the Netherlands and Belgium. Maarten also contributes to strategic business development, helping expand Invesis' activities into new infrastructure and energy sectors.

Maarten van der Bent

Head of Project Finance
Marc Hennemann

Marc joined Invesis in 2019 and leads business development activities within the German business unit. He has extensive experience in PPP, project development and commercial negotiations, supporting projects from origination through to contract close. Marc also serves as Invesis' Wellbeing and Mental Health Lead Champion, promoting health, safety and wellbeing across the business.

Marc Hennemann

Business Development Director
Marcel Rietveld

Marcel Rietveld has almost 30 years of experience in finance and joined Invesis in 2007. He has held a variety of finance leadership roles across the Netherlands and Germany and is a member of the management team. Marcel oversees operational financial activities, supporting project teams with financial management, modelling, tax and cashflow matters across the business.

Marcel Rietveld

Head of Operational Finance
Marisa Maerevoet

Marisa Maerevoet is an Operational Finance Manager within Invesis' Netherlands and Belgium business unit. She supports the financial management of PPP projects, overseeing reporting, budgeting and financial controls. Working closely with project teams and stakeholders, Marisa helps ensure strong financial performance and the effective operation of Invesis' infrastructure portfolio.

Marisa Maerevoet

Operational Finance Manager
Mark Moore

Mark joined Invesis in 2002 and has played a key role in the development of major PPP projects across the UK, Ireland and international markets. He has extensive experience in bid leadership, project development and strategic growth, helping expand Invesis' activities across multiple infrastructure sectors and supporting the successful delivery of projects in Europe and Australia.

Mark Moore

Business Development Director
Martin Visser

Martin is an experienced finance professional with nearly 37 years' experience in financial consolidation and management reporting. He joined Invesis in 2022, having previously worked at Royal BAM Group. Martin supports the business through financial consolidation, cashflow reporting and analytical expertise, providing reliable financial insight and bringing accuracy, consistency and attention to detail to his work.

Martin Visser

Central Finance Manager
Matthew McCloskey

Matt McCloskey supports the development, bidding and financial close of PPP projects across multiple sectors and jurisdictions. He specialises in financial modelling, due diligence, transaction structuring and financing, working closely with lenders and project partners to deliver robust investment solutions. Matt has supported projects across Ireland, the UK and Australia and also contributes to the governance of operational project companies.

Matthew McCloskey

Project Finance Manager
Matthijs Breukink

Matthijs has 15 years of experience in project finance across DBFM projects in the Netherlands and Belgium. He specialises in financial structuring, modelling, financing and risk analysis, supporting the successful delivery of complex infrastructure projects. His experience spans education, justice, rail, road and maritime sectors, and includes refinancing and restructuring transactions. Matthijs is known for his analytical expertise and collaborative approach.

Matthijs Breukink

Project Finance Director
Melanie Pieck

Melanie joined Invesis in 2023 as an Administrator, as a member of the operational finance team working in the Netherlands and Belgium. Prior to joining Invesis, Melanie worked for BAM for 24 years and Wereldkidz. In her spare time she enjoys walking her dog, city trips and spending time with family and friends.

Melanie Pieck

Accounts Assistant
Michael Gillespie

Michael Gillespie is a qualified solicitor with over 30 years' legal experience across infrastructure projects in the UK, Ireland, Germany, Switzerland and Australia. His expertise spans education, justice, healthcare and transport sectors. Michael supports project development, asset management and refinancing activities, providing legal and commercial guidance throughout the project lifecycle and contributing to the strategic management of the business.

Michael Gillespie

Head of Legal Services
Mike Durenkamp

Mike specialises in aligning IT strategy with business needs across governance, enterprise architecture and Microsoft 365 solutions. He works closely with stakeholders to support digital transformation and deliver practical, value-driven technology solutions.

Mike Durenkamp

IT Business Partner
Mila Lopez Simon

Mila Lopez Simon is Managing Director for Invesis UK & Ireland, leading a team of more than 40 people across offices in London, Glasgow and Naas. She also serves as a non-executive director on the boards of several portfolio assets.

Mila Lopez Simon

Managing Director
Nadiia Pavlenko

Nadiia joined Invesis in 2025 and supports the A9 Gateway ThĂ¼ringen concession within the German business unit. Her responsibilities include inspection planning, maintenance coordination, budget optimisation and risk management across the asset lifecycle. Nadiia holds a PhD in Technical Sciences and is passionate about infrastructure reliability and long-term performance.

Nadiia Pavlenko

Project Manager
Nathalie Vandenbroucke

Nathalie Vandenbroucke is an Insurance and Risk Business Partner with extensive experience in the European construction and infrastructure sector. She advises colleagues across Invesis on insurance, risk and opportunity management matters, supporting both project development and delivery activities. Nathalie also facilitates Enterprise Risk Management processes, helping teams identify, manage and mitigate risks across the business.

Nathalie Vandenbroucke

Insurance and Risk Business Partner
Nicolle McKibben

Nicolle joined Invesis in 2019 and oversees operational PPP projects across the north of the UK. With more than 20 years' experience in property and asset management, she specialises in stakeholder engagement, lifecycle management and maintaining operational performance across infrastructure portfolios.

Nicolle McKibben

Senior Project Manager
Niels Meerkerk

Niels Meerkerk joined Invesis in 2017 and has over 18 years of experience in finance, audit and advisory services. He leads the operational finance function across the Netherlands and Belgium, supporting both construction and operational projects. Niels combines strong financial expertise with a practical approach and contributes to initiatives including risk management, restructurings and new investments.

Niels Meerkerk

Head of Operational Finance
Orla Nuzum

Orla Nuzum has over 20 years' experience in developing and delivering large-scale infrastructure projects, with extensive expertise in the Irish PPP market. She works closely with partners and stakeholders to identify opportunities, develop projects and deliver successful outcomes. Orla combines strong commercial and technical knowledge with a collaborative approach, bringing valuable insight across the full PPP project lifecycle.

Orla Nuzum

Investment Director
Paula van der Veen

Paula van der Veen has made a significant contribution to Invesis' Netherlands and Belgium Project Delivery team. She has successfully led major infrastructure concessions through the transition from construction to operations and played a key role in the restructuring and delivery of the Afsluitdijk project. Paula is recognised for her collaborative approach and commitment to achieving successful project outcomes.

Paula van der Veen

Project Director
Philip Kröner

Philip Kröner leads Invesis' Netherlands and Belgium Project Delivery team, overseeing the construction, maintenance and long-term performance of the portfolio. He works closely with project partners, contractors and stakeholders to support successful project delivery and operational outcomes. Philip brings a collaborative approach and a strong focus on asset performance, value creation and continuous improvement across the portfolio.

Philip Kröner

Asset Management Director
Pien Chen

Pien joined Invesis in 2026 and is responsible for tax matters across the group’s international operations. She works closely with finance, legal and business teams to support compliance, tax strategy and cross-border activities. Pien brings expertise in international taxation and stakeholder management, helping ensure efficient, compliant and sustainable tax practices across the business.

Pien Chen

Senior Tax Manager
Piera Creekmur

Piera joined Invesis as Office Manager for the German business unit after many years supporting the management board of an international construction company. She oversees a broad range of administrative and organisational activities, supporting both colleagues and senior leadership across the office.

Piera Creekmur

Office Manager
Rimma Tomporowski

Rimma Tomporowski joined Invesis in June 2024 as Operational Finance Manager, supporting the day-to-day financial management of German concessions. She began her career in accounting at Deutsche Bahn AG before moving into commercial project management at Ed. ZĂ¼blin AG. Rimma brings strong finance experience and is keen to further develop her career within Invesis.

Rimma Tomporowski

Operational Finance Manager
Roisin Shirreff

Roisin Shirreff joined Invesis in 2025 and supports the delivery of PPP projects across Ireland. She works closely with stakeholders to manage operational services and support project delivery. Prior to joining Invesis, Roisin spent almost a decade in the US construction industry, leading school and healthcare projects and gaining extensive experience across all stages of the project lifecycle.

Roisin Shirreff

Project Manager
Ruben den Engelsman

Ruben den Engelsman joined Invesis in 2026 and is based in Brussels, Belgium. He is responsible for the financial management of the Dendermonde Prison and Brabo2 project in Antwerp. Ruben has a background in business controlling at Canon and Universal Music, with a strong focus on financial analysis and management reporting, helping drive insight and performance across projects.

Ruben den Engelsman

Operational Finance Manager
Sarah McGrotty

Sarah joined Invesis in 2022 as an Accounts Assistant within the UK and Ireland business unit. With eight years' experience in finance operations, she supports expense management, invoice processing and financial transactions across the organisation.

Sarah McGrotty

Accounts Assistant
Sascha Ernest

Sascha joined Invesis in 2025 and supports payroll activities across the organisation, with a focus on governance, process improvement and compliance. He brings experience from international payroll environments, working closely with colleagues, vendors and stakeholders to deliver efficient and scalable solutions. Sascha enjoys simplifying complex processes and helping create a positive experience for employees and the business.

Sascha Ernest

Payroll Manager

Satvika Benistant

HR Operational Manager
Sebald van Royen

Sebald van Royen is Managing Director for Invesis in the Netherlands and Belgium, leading the business across project development, delivery and asset management activities. He works closely with clients, partners and stakeholders to support the successful delivery of infrastructure projects and long-term value creation. Sebald is committed to building strong teams, fostering collaboration and driving sustainable business growth.

Sebald van Royen

Managing Director
Sebastian Brocks

Sebastian joined Invesis Germany's Operations and Maintenance team in 2018. With an interdisciplinary background in geography, he supports motorway operations, geospatial asset management and accommodation projects across Germany.

Sebastian Brocks

Project Manager
Sharon Keane

Sharon Keane supports Invesis' activities across Ireland, working closely with colleagues, clients and stakeholders to deliver successful project outcomes. She brings strong organisational and relationship management skills, contributing to effective collaboration and project performance.

Sharon Keane

Senior Project Manager
Sharon Lubbersen

Sharon Lubbersen joined Invesis in 2020 and supports operational PPP projects across the Netherlands and Belgium. With a legal background and strong organisational skills, she contributes to the successful delivery of infrastructure projects and works closely with stakeholders to build positive, long-term relationships. Sharon is committed to collaboration, community engagement and creating lasting value.

Sharon Lubbersen

Project Manager
Simon Hunter

Simon Hunter is the Head of Invesis in Australia and New Zealand. With over 20 years of experience in public-private partnerships (PPPs) and infrastructure investment, Simon leads Invesis' strategic growth in the region, building on its current portfolio and securing new investments across PPPs, social and affordable housing, and wider infrastructure sectors.

Simon Hunter

Director and Head of Australia and New Zealand
Sinead Fenton

Sinead Fenton joined Invesis in 2025 and supports the delivery of major infrastructure projects across Ireland. With more than 30 years' experience in the construction industry, she has worked on both the client and contractor sides of developments spanning commercial, residential and infrastructure sectors. Sinead brings extensive project delivery expertise and a collaborative approach to stakeholder management.

Sinead Fenton

Project Director
Siobhan Connolly

Siobhan joined Invesis in 2019 and provides executive support to the CIO and UK & Ireland Managing Director. She also oversees the day-to-day management of the Glasgow and London offices, supporting operational efficiency, health and safety, and internal communications. Siobhan is a valued member of the UK and Ireland CSR team and contributes to the smooth running of the business.

Siobhan Connolly

Executive Assistant and Office Manager
Sophie Wattiaux

Sophie joined Invesis in 2024 and provides legal support across project development and tender activities in Belgium. She brings extensive experience in real estate, infrastructure and corporate governance, having worked on a wide range of complex projects throughout her career. Sophie enjoys the multidisciplinary nature of PPP projects and works closely with colleagues and stakeholders to support successful outcomes.

Sophie Wattiaux

Senior Legal Manager
Stephanie Coutts

Stephanie is an Investment Manager supporting origination and execution activities across Australia and New Zealand. With experience in infrastructure advisory and social PPP projects, she specialises in commercial and financial workstreams across healthcare, housing and transport infrastructure.

Stephanie Coutts

Investment Manager
Tanisha Powell

Tanisha joined Invesis in 2025 as Company Secretary, overseeing governance, compliance and entity management across the group. With more than 15 years' experience across legal and finance functions, she supports directors and stakeholders on governance and regulatory matters.

Tanisha Powell

Company Secretary
Thomas Stutze

Thomas is responsible for the A10/A24 project, one of the largest infrastructure assets in Invesis' portfolio. With more than 20 years of experience in infrastructure investment and project delivery, he oversees complex contractual and technical matters and works closely with project stakeholders. Thomas combines extensive industry expertise with a strong analytical background, supported by doctoral research into highway maintenance economics.

Thomas StĂ¼tze

Senior Project Director

Tim de Bruin

Project Manager
Torsten Vogt

Torsten joined Invesis in 2014 and serves as Commercial Project Director for the University Hospital of Schleswig-Holstein project. He oversees all commercial matters relating to the SPV and stakeholder management, bringing extensive international infrastructure experience.

Torsten Vogt

Project Director
Vicki Sutherland

Vicki is an experienced marketing and communications leader specialising in brand development, strategic storytelling and stakeholder engagement across the infrastructure sector. She leads corporate communications, PR, digital content and brand strategy activities that support business growth and reputation. Outside work, Vicki enjoys rowing and spending time with family and friends.

Vicki Sutherland

Marketing and Communications Business Partner
Vincent van Lienden

Vincent van Lienden joined Invesis in 2020 and has extensive experience in corporate finance, financial reporting and restructuring. He oversees group financial reporting, portfolio valuation and treasury activities, supporting the effective management of the business and its projects. Vincent coordinates complex financial processes and provides clear, structured financial insight to support decision-making across the organisation.

Vincent van Lienden

Senior Central Finance Manager
Wayne Walbrook

Wayne joined Invesis in 2023 as Project Director for the Southern Region, overseeing operational PPP projects across southern England. With 28 years' experience across healthcare, education and social housing projects, he is recognised for building strong relationships and supporting successful project delivery and handback.

Wayne Walbrook

Project Director
Wendy Stewart

Wendy is a Fellow of the Association of Chartered Certified Accountants with more than 35 years' experience in finance and PPP infrastructure. She leads a team responsible for financial management across more than 50 entities and 21 PPP projects, supporting funding, compliance and operational performance.

Wendy Stewart

Head of Operational Finance
Yaatha Aiyel

Yaatha has over 15 years' experience in infrastructure investment, spanning origination, execution, portfolio management and value creation. Based in Sydney, he joined Invesis in 2025 and led the firm's first investment in New Zealand. His expertise covers social infrastructure, transport, energy and digital infrastructure, and he is passionate about delivering projects that create sustainable, long-term value for communities and investors.

Yaatha Aiyel

Investment Director
Yasmin Nyeste

Yasmin joined Invesis in 2023, bringing experience from both legal practice and project finance. She manages PPP bids across Belgium and the Netherlands and combines legal expertise with strong commercial and financial structuring skills.

Yasmin Nyeste

Senior Investment Manager
Yvonne Costello

Yvonne was appointed Head of Concessions Ireland in 2021. A Chartered Engineer with extensive PPP experience, she leads the delivery of social infrastructure and transport concessions across Ireland and the UK, including the Silvertown Tunnel project. Yvonne combines technical expertise with strong operational and stakeholder management experience.

Yvonne Costello

Head of Concessions Ireland
Latest

Latest News

From infrastructure deal announcements to PPP project news, find up-to-the-minute information from our Invesis news team here.