Our Sustainable Infrastructure portfolio

Peter is Managing Director of Gresham House’s Sustainable Infrastructure division and Co-Fund Manager for the firm’s British Sustainable Infrastructure Fund (BSIF) strategy. BSIF invests in real asset-based solutions for the key environmental and social challenges we face. He is also a member of the Gresham House Asset Management Board.

Prior to Gresham House, Peter led the investment and exit of the Sustainable Infrastructure-focused Environmental Capital Fund (ECF) for SEP, one of Europe’s most successful VC firms. With over 24 years of public and private equity investment, development and fund management experience, including two top-decile infrastructure fund exits, he has invested into and exited over 200 infrastructure and technology companies across all sectors with an equity value of over £2bn and capital value of c.£6bn.

Peter has had board member roles on over 90 investee companies and is a Senior Associate of the Cambridge Institute for Sustainability Leadership (CISL). Peter is also an active investor in early-stage sustainability companies and has planted his own Miyawaki Forest at home.

Simon joined Gresham House in December 2022.

Simon has over 25 years’ experience in corporate advisory, private equity, M&A, debt advisory, strategic business planning, performance improvement and board governance. He has led over a dozen successful private equity exits and is an experienced non-executive director.

Before joining Gresham House, Simon was a Partner, Head of Portfolio and member of the Investment Committee at Bowmark Capital. He also co-chaired the Exit and Valuations Committees. Prior to that, he was Senior Portfolio Director at Lloyds Development Capital.

Before his career in private equity, Simon spent nearly 20 years as an advisor, initially at KPMG in Birmingham before moving to Deloitte in 2005. At Deloitte, Simon was a Partner and Head of UK regional Corporate Advisory, a business he established to advise fast growing mid-market privately owned and private equity backed businesses across the UK regions.

During his time as an advisor, Simon completed several corporate secondments in board level roles to help companies including a large construction company, multinational airline, global consumer product manufacturer, football league club and UK based listed retailer. He also has extensive international experience, including a two-year secondment to Melbourne Australia with Deloitte. Simon has worked across a variety of sectors, in particular healthcare, education, retail, TMT, infrastructure and construction.

Simon is a Fellow of the Institute of Chartered Accountants (ICAEW). He holds a Bachelor of Social Science (B.Soc.Sc) degree in Money, Banking and Finance from the University of Birmingham.

Chris joined Gresham House in August 2023.

Chris has over 20 years’ experience in private equity, corporate finance & restructuring, strategic business planning, M&A, performance improvement, and is an experienced non-executive director.

Before joining Gresham House, Chris spent seven years as a Portfolio Director at Lloyds Development Capital where he worked with around 30 businesses across a broad range of sectors including IT services and unified communications, business services, educational support services, construction, manufacturing, logistics and financial services to deliver numerous successful acquisitions and exits.

Prior to his career in private equity, Chris spent 15 years at Deloitte LLP as an advisor to UK mid-market board teams, shareholders, private equity investors and lenders. During this time, Chris also undertook a secondment at a major UK high street lender, gaining first-hand experience of credit and internal banking procedures, debt and security structures.

Chris is a Chartered Accountant (ICAEW) and holds a Bachelor of Engineering degree in Mechanical Engineering from the University of Nottingham.

Ruth is an Investment Director in the Gresham House Sustainable Infrastructure Team. The move to asset management in 2020 marked a career change for Ruth who was previously a Senior Partner in a top 100 law firm leading the Energy and Projects team and a member of the firm’s management board.

The Sustainable Infrastructure team manage the BSIF Funds’ strategies, investing in new Sustainable infrastructure that can support and accelerate the innovative solutions required to address key environmental and societal challenges whilst also delivering attractive returns. Ruth is the co-fund Manager of the Gresham House Biodiversity Creation fund strategy, a dedicated vehicle to fund portfolio company, Environment Bank in establishing biodiversity rich habitat banks across England. Ruth is a Director of Environment Bank and two of the BSIF Funds’ waste portfolio companies.

Ruth trained and qualified at Wragge & Co (now Gowling WLR) and holds an LLB (Hons) from Birmingham University.

Stevie joined Gresham House in January 2018 and works on both public and private transactions across the full range of funds, spending the majority of time working on the British Strategic Investment Fund in the Sustainable Infrastructure team.

Prior to Gresham House, Stevie worked for Lloyds Banking Group in their Leveraged Finance Team, following the completion of the graduate scheme where she gained exposure to a wide range of Capital Market products.

Stevie holds a BA (Hons) in Economics from Durham University and has passed CFA Level II.

Sharan joined Gresham House in April 2021. Prior to this he spent four years at Octopus Investments, where he focused on renewable energy investment transactions (£165mn closed) and fundraising (£600mn closed).

He has six years’ experience in finance, with a BSc (Hons) in Business Management from King’s College London and an MSc from Imperial College London in Economics and Strategy.

He also has four years’ experience working on a technology start-up, which he co-founded while at university.

Sharan used to play chess for Great Britain.

Mathangi joined Gresham House in January 2023 and is an Investment Manager in the Sustainable Infrastructure team.

Prior to joining Gresham House, Mathangi worked at an impact venture capital fund in India as an investment fellow where she was responsible for setting up the fund along with building the fund’s investment thesis and deal pipeline.  Prior to that she was part of EY India’s Financial Due Diligence team.

Mathangi has seven years of work experience in the industry and is a Chartered Accountant from the Institute of Chartered Accountants of India. She also holds an MBA from HEC Paris with a specialisation in Finance.

Hiroki joined Gresham House in April 2025 as a Portfolio Analyst in the Sustainable Infrastructure Fund.

He has over five years of experience, most recently as an Associate at Long Harbour Ltd., a real estate private equity firm. There, he led financial modelling and underwriting for residential investments. He also supported capital raising, corporate transactions, and developed tools to monitor fund performance.

Hiroki began his career at BDO UK LLP, where he worked in audit across a wide range of clients—including private companies, charities, and public sector bodies—and  further worked in transaction services within the real assets sector.

He is a Chartered Accountant (ACA), has passed all three levels of the CFA Program, and holds an MA in Psychology and Philosophy from the University of Edinburgh.

Matthew joined Gresham House in July 2024. Prior to this he spent 3.5 years at HSBC where he worked across the Natural Resources sector team and Real Assets Finance team, focusing on renewables, power & utilities, energy and infrastructure transactions.

He has over 3.5 years of experience in finance, with a degree in Law and a degree in Accounting (BAcc LLB) from Stellenbosch University.

Matthew is a Fellow of the Allan Gray Orbis Foundation.

Jane joined Gresham House in July 2023 to work on the Sustainable Infrastructure team.

Prior to joining Gresham House, Jane worked as an Investment Analyst for the renewable energy fund at Temporis Capital focusing on investing in solar, wind and battery storage assets. Jane has also worked  in project finance roles across core infrastructure and real estate finance whilst at Allied Irish Bank in Dublin.

Jane graduate from University College Dublin with a first class BSc (Hons) in Economics & Finance and is a CFA Charterholder.

Tim joined Gresham House in February 2025 as an Investment Associate in the Sustainable Infrastructure team.

Prior to this, Tim worked in strategy at a private equity portfolio company and was a Senior Associate at a boutique merchant bank in Sydney, where he focussed on private capital investments and advisory in the APAC region.

Tim began his career in investment banking at Credit Suisse, advising on M&A transactions across multiple sectors including Renewable Energy, Digital Infrastructure, Industrials and TMT.

Tim has over 5 years of experience in finance and holds a Bachelor of Laws (Hons) and a Bachelor of Commerce (Finance) from The Australian National University.

David joined Gresham House in January 2022 as Fund Controller working on BSIF strategies within our Sustainable Infrastructure team.

Prior to joining Gresham House, David worked as an Audit and Corporate Finance Manager at Magma Chartered Accountants, specialising in full audit services across SME owner-managed businesses, renewable energy companies, fund accounting and auditing of international listed groups.

David has 10 years’ experience working in the financial services industry.

Baroness Natalie Evans of Bowes Park is a Conservative member of the House of Lords. She was appointed as a life peer in October 2014 and was Leader of the House of Lords and a member of the UK Government’s Cabinet between 2016 and 2022 – the longest serving Leader for 70 years.

Between 2015 and 2016 she was a junior Government minister in the Department of Education, Department for Work and Pensions, and the Ministry of Justice. Before entering the House of Lords, Natalie held a variety of senior positions including CEO of the New Schools Network, Deputy Director of Policy Exchange, and Head of Policy at the British Chambers of Commerce. 

Ian has over 30 years of experience in sales and marketing, spanning senior corporate roles and work with startups and scale-ups. His career highlights include serving as Commercial Director at ITV Digital (now Freeview) and Group Sales Director for a division of Deutsche Telekom.

Twenty years ago, Ian founded RSC Associates, a consultancy specialising in sales turnaround, team setup, due diligence (pre-deal and post-term), pipeline management, process optimisation, and performance management. Ian believes sales principles are universal and begins every engagement with a comprehensive audit, followed by tailored recommendations. Clients often retain him to implement these strategies, driving measurable outcomes.

With significant expertise in sustainability sectors—including biofuels, LED technology, anaerobic digestion, and biodiversity offset—Ian remains hands-on in deal structuring, win themes, and bid writing. RSC Associates also includes a team of fractional consultants specialising in business development, SDR functions, social media, and CRM optimisation.

Ian’s proactive approach and extensive network consistently deliver tangible growth and lasting value for clients across industries.