The Corporate Emissions Reduction Transparency (CERT) report is a voluntary initiative for eligible organisations to present their climate-related commitments, progress and net emissions position. It presents this information in one place, using a standardised framework.

Twenty-five large companies from the energy, manufacturing, mining, retail, financial, transport, construction and research sectors participated in the CERT report 2023. Together, they represent 21% of the scope 1 emissions reported to us in 2021–22. These companies presented 69 commitments, up from 49 in the CERT report 2022.

About this report


The CERT report reader's guide

Guidance on how to understand each participating company’s CERT report.


2023 highlights

Key highlights of the data and information included in the CERT report 2023.



Definitions of terms used throughout the CERT report 2023.


2023 company reports