Our team
Our team - Dr Martin Hurst

Martin was a senior civil servant on environmental issues for 20 years, including as Water Director and Commercial Director in Defra, and as Senior Farming, Environment, Housing and Planning Advisor in Number 10. He is by background a professional economist, with 10 years of experience in HM Treasury, and has a strong grounding in corporate finance.

Since leaving the civil service, he has concentrated on water, floods, housing and major infrastructure appraisal. He currently holds a number of NED appointments, is chair of the government’s Southern Regional Flood and Coastal Defence Committee, is a visiting senior lecturer at UCL on major infrastructure, and is a member of a water company customer challenge group and a trustee of the south east rivers trust.

Martin's publications include government economic services papers on the economics of sustainability and on public finances, and a recent paper in ‘Geography’ and in the TCPA journal on long term water resilience. In this latter context he was also the expert advisor to the government’s recent national drought exercise.

Dr Martin Hurst
Sharon Darcy
Sharon DarcyDirector
Sharon is a champion of consumer concerns in energy and water and has worked with Sustainability First since 2013. She served on the Council of Which? until April 2019, prior to which she was a long-standing board member of Consumer Futures.
Clare Dudeney
Clare DudeneyAssociate
Clare currently works with Sustainability First as an associate on a number of current projects, including leading the Sustainable Futures Programme. She is also a fine artist and curator.
Maxine Frerk
Maxine FrerkAssociate
Maxine Frerk has wide regulatory experience including 15 years in Ofgem in senior roles.
Dr Martin Hurst
Dr Martin HurstAssociate
Dr Martin Hurst was a senior civil servant on environmental issues for 20 years, including as Water Director in government and Environment Advisor in Number 10, and is by background a professional economist.
Zoe McLeod
Zoe McLeodAssociate
Zoe McLeod is a consumer policy and regulatory expert with a particular focus on energy, water, innovation and consumer vulnerability issues.
Judith Ward
Judith WardAssociate
Judith Ward has worked with Sustainability First as an associate since 2005. She was director of Sustainability First for five years. She is an energy policy professional with long-standing practical experience of both the utility and consumer worlds.
Alice Cross
Alice CrossResearch Officer
Alice is Sustainability First’s Research Officer, responsible for carrying out research on projects and Sustainability First initiatives, as well as communicating Sustainability First’s messages.
Janine Duffy
Janine DuffyCommunications and Engagement Officer
Janine is Sustainability First’s Communications and Engagement officer, responsible for developing and implementing the organisation’s communications strategy.
Sonya Peres
Sonya PeresEducational Outreach Officer
Sonya is Sustainability First’s part-time Educational Outreach Officer for the Sustainable Futures Programme. She is working on delivering workshops on sustainability for primary and secondary school youth.