Trucost encourages companies to disclose their environmental impacts in a standardised, quantitative and comparable way in order that investors can access the data required to make a fair assessment of environmental risk in financial terms. provides access to company disclosure data in financial as well as quantity terms, providing comparable, standardised data which investors can use.

Trucost and Defra (UK Government Department for Environment, Food and Rural Affairs) researched and wrote the UK Government Guidelines for corporate environmental reporting: Environmental Key Performance Indicators: Reporting Guidelines for UK Business in order to create a useable framework for clear, concise and investor relevant reporting by companies on their material environmental impacts.

As a part of the research process, Trucost contacts 3,500 companies annually requesting that companies provide investor relevant, quantitative environmental data. In many instances unique data is obtained as a part of this ongoing engagement programme.

In addition, Trucost has researched and written three reports for the Carbon Disclosure Project analysing the disclosures of the , and the world's largest .

Trucost and allow companies to report environmental impacts in an investor relevant way in line with the UK Government Guidelines and European legislation.