You can also call us on +44 (0)20 7170 7000, or select 'Live Chat' to chat with one of our advisors


We help businesses and the public sector adopt more sustainable, low carbon operational models by measuring and certifying the resource footprints of organisations, their supply chains, products and services to recognised international standards and by providing Assurance statements that verify environmental claims.

The Carbon Trust provides independent certification and assurance services that recognise real achievements in sustainability, identify improvement opportunities, enhance your reputation and build trust with customers, investors and stakeholders.

Having developed the world’s first certification for organisational CO2e and product carbon footprints, the Carbon Trust is the leading footprint certification body for carbon, water and waste, and is accredited by the UK Accreditation Service (UKAS) to ISO 14065:2013 to provide greenhouse gas verification against PAS 2050 and the Code of Good Practice.

Download the Carbon Trust Certification Overview (PDF)

Our aim is to develop the UK’s most carbon-efficient network, putting our own operations under the microscope and looking for ways to reduce the footprint we leave on the world. By evaluating our impact in conjunction with the Carbon Trust we feel we are doing just that.

Gareth Rice, Head of Environment, O2

Carbon Trust Standard

A wide range of organisations have certified their operations to the Carbon Trust Standard and are proud to bear the Carbon Trust Standard logo.  With over 1,100 certificates issued, they have helped create a new business culture whereby corporate sustainability is now an essential part of business management.  Organisations choose the Carbon Trust Standard as the leading means to independently validate and certify their achievements in adopting more sustainable business models.

Carbon Trust Standard bearers include:




Allied Bakeries

Anglian Water

Branston Ltd

Bentley Motors


Center Parcs



Foreign & Commonwealth Office











Standard Chartered Bank


Read more about the Carbon Trust Standard


Certified organisations have saved a staggering £165m in energy and operational costs and reduce carbon emissions by over 3.6Mt CO2e every year, with an average annual energy cost saving of £322,000.

See how the Carbon Trust helped Nationwide on their journey to becoming a more sustainable organisation:

Get in touch

Contact us to find out how our assurance and certification services can help you.

Contact us

© 2017 Carbon Trust
Back to top