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The UK Government issues emission conversion factors for use by UK and international organisations to report on greenhouse gas emissions. The key responsible departments / agencies are / were: BEIS , DEFRA, DESNZ and NAEI.

The European Union's Carbon Border Adjustment Mechanism (CBAM) is a regulatory tool designed to measure carbon emissions attributed to the production of high-carbon goods imported into the EU, aiming to promote cleaner practices in industrial production across non-EU countries. To this end, the European Commission publishes emission factors providing the necessary metrics for compliance and environmental integrity.

Cloud Carbon Footprint is a free and open-source emissions measurement and analysis tool. It provides emission factors and methodology for measuring the emissions of Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP).

Circular Ecology offers resource efficiency services, including carbon footprinting, water footprinting, life cycle assessment (LCA), circular economy and general resource efficiency.

Climate TRACE (Tracking Real-Time Atmospheric Carbon Emissions) is a collaborative initiative aimed at providing precise, real-time tracking of global greenhouse gas emissions using artificial intelligence, satellite image processing and other remote sensing technologies along with academic research and publicly available data.

Climate Transparency is a global partnership organisation funded by the German Government, World Bank, and several other bodies. It seeks to stimulate climate action in G20 countries through enhanced transparency. The Climate Transparency Report annually provides the emission intensity of electricity generation for various countries, based on the emissions from the respective grid mix.