Our Team

All Sustain Value projects are led by James Spurgeon, with support provided by Associate experts and graduate consultants as required.


Our lead consultant, James Spurgeon has 25 years of consulting experience quantifying and valuing environmental and social impacts and dependencies for businesses, financial institutions and governments. He has undertaken well over 200 natural and social capital valuation studies including for many companies in a broad variety of sectors in the UK and overseas.

At Sustain Value we also draw upon an extensive and growing network of Associate experts, as well as supporting graduate consultants. This approach allows us to provide clients with the right mix of highly experienced technical advice in a flexible and cost-effective manner.

In addition, we partner with offsetting and project developers ClimateCare to provide broader integrated services helping our clients with No Net Loss and Net Positive ambitions and goals.   

James Spurgeon

James is an acknowledged expert in the field and was a lead technical advisor and a lead author of the Natural Capital Protocol.  He is a member of the Natural Capital Coalition Advisory Panel and has conducted a numerous natural capital assessments using the Protocol. This has included several for Roche (covering site level assessments for all of Switzerland - and a site assessment for water in California), International Paper, APP, Ten Knots Hotal Resorts and FTSE 100 Extractives companies.  He is also a technical advisor and contributing author for the Financial Sector Guide. 

He has recently been leader of the Natual Capital Accounting for Business Workstream for the EU Business and Biodiversity Platform, and environmental economics advisor to Prince Charles’ Accounting for Sustainability ‘Integrated Value’ working group.

Prior to setting up Sustain Value, James led the environmental economics teams at ERM, Jacobs and Posford Duvivier (now part of Royal Haskoning), and before that trained to be an accountant with KPMG. He has an MBA from Warwick Business School (focusing on CSR and environmental markets), an MSc from Newcastle University (focusing on coastal resource management and environmental valuation), and a BSc in Zoology from Exeter University.  

He has been the sole or principal author of the following business guides: 


James is also a recognised expert on coral reef valuation and coral reef offsetting, and has considerable experience in the valuation and sustainable financing of marine and terrestrial protected areas.

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