Our work.

We are delighted to have worked with a wide range of respected clients.

Case Studies

Richard Pike

Chief Financial Officer, Biffa

“Sillion worked with us to identify what mattered most to Biffa, bringing both technical insight and expertise with regard to leading reporting frameworks. In addition we value their pragmatic approach to ESG, and their deep understanding of investors and their needs.”
Patrick Hanrahan

Head of Communications, CDSB (now consolidated into the IFRS Foundation)
“Sillion provided invaluable support around our integration with the ISSB, helping us communicate a complex story and providing insightful guidance on the comms challenge ahead. Their expertise in the ESG regulatory landscape made them the ideal consultancy for the task.”
Stephen Lilley

Greencoat UK Wind
“Sillion were invaluable in helping us shape our communications strategy and narrative. As the first listed renewables company in the London market we needed a mainstream institutional investment case in a sector which, before us, had been seen as an alternative investment. Sillion brought an understanding of both renewables and the capital markets which was extremely helpful - and with others soon following our model, the sector is now worth over £10bn in the UK alone.”
Martha Jennings

Head of Corporate Responsibility, Ascential

“Developing a climate strategy was essential to us, but the difficulties designing a meaningful approach given our sector and group structure required real expertise. Sillion took us from uncertainty to a plan we can execute on.”
Anne-Brigitte Spitzbarth

VP Supply Chain, Gefco
“Sillion has been a very good partner for understanding what sets GEFCO apart and supporting us through periods of positive transition at the company. As a communications team, Sillion were capable of refining our sustainability narrative, while preparing our messaging for investor and capital-market facing channels. It’s been a pleasure to work with them and we look forward to continuing to work with them in the future.”
Catherine Miles

Director of Investor Relations and ESG, Headlam

“Sillion have been the ideal partner in supporting us in defining our ESG strategy, and bringing it to reality. They are an invaluable external advisor, and great people to work with too!”