We are an entrepreneurial team from a wide range of finance, consultancy and asset management professional backgrounds creating deliverable impact-led solutions to social and environmental problems.



Richard Speak Environmental FinanceRich conceived and founded Environmental Finance. Rich worked for over ten years in cross border mergers and acquisitions, where amongst other things he completed a number of transactions in large scale European solar.  In 2012, Rich set up two social enterprises in grass roots sport, and redirected his career into Social Investment, linking financial returns with improving social outcomes, and joined the UK’s leading social advisory firm Social Finance in 2013. As a Director at Social Finance, Rich raised the first ever £10m Social Solar Bond aimed at reducing fuel poverty in the UK using solar technology, as well as completing over 15 other transactions involving over £35m of social investment. Rich is a Chartered Accountant and holds a LLB (Hons) in law, and is a Chartered Member of the Institute of Securities and Investments. Rich is passionate about conservation and is a Fellow of the Zoological Society of London.



Jamie Mansfield Environmental FinanceJamie leads EF’s advisory work with the RSPB and WWF on natural capital financing. He co-designed and manages a £50m investment programme that acquires solar assets to transition them into community ownership. He has extensive experience across M&A, project financing and debt underwriting of renewable energy and natural asset projects. Jamie has structured over £150m of long-term debt and equity investments with institutional investors. He has a first class Masters of Engineering from Exeter University. Outside of work he is keen alpine climber and is currently ranked joint 34th in the World Stone Skimming Championships.

Craig Humphrey


Craig Humphrey Environmental FinanceCraig is a founding team member of Environmental Finance. Craig and Rich previously worked together at Pall Mall Capital, an international corporate finance boutique where Craig undertook a wide range of projects in the energy and industrials sectors including a number of early solar transactions in continental Europe, financing industrial scale ground mount parks across Germany and Italy as well as thin film and panel manufacturers in Germany. He also helped to create a business in Wales using sheep’s wool to provide a natural alternative for home insulation products. Craig is an MBA alumni from London Business School and previously was Pall Mall Capital’s COO and FCA reporting officer. Craig owns a sheep farm with his brother in his home, New Zealand. Craig is passionate about sustainable food production, ethical farming and the circular economy. He would like to continue to find new ways to turn waste or undervalued bi-products from these industries into valuable assets.

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