Assurance and certification

We provide independent certification and assurance services that recognise real achievements in sustainability, enhance reputation and build trust with customers, investors and stakeholders.

Carbon neutral certification

Certify your organisation or product to PAS 2060, the international standard for carbon neutrality.
 

The Carbon Trust Standard

The Carbon Trust Standard recognises organisations that follow best practice in measuring, managing and reducing their environmental impact.


Green bonds assurance

Our robust and independent approach gives issuers, underwriters and investors the confidence that green bonds are genuinely delivering on their intended impacts.


ISO 50001 Energy Management Certification

Certify your implementation of ISO 50001 with Carbon Trust Assurance - the world’s leading authority on energy management.


PAS 2080 - Carbon Management in Infrastructure

Reducing the carbon emissions associated with the infrastructure industry.


Product footprint certification

Third party assurance of carbon measurement, reduction and neutrality claims.


UK Accredited Supplier scheme

The Carbon Trust Accredited Supplier scheme is the UK’s market-leading scheme for high quality energy efficient equipment and renewable technology suppliers.


Airport Carbon Accreditation

We provide independent verification services for the Airport Carbon Accreditation programme, which provides airport operators with a framework for carbon management and reduction.