Anthesis Group operates as a sustainability consultancy, providing services to help organizations implement environmental, social, and governance (ESG) strategies, achieve net zero emissions, and manage sustainable supply chains. Their offerings include carbon accounting, sustainability reporting aligned with standards like CSRD and ISSB, biodiversity assessments, and circular economy programs. Clients include multinational corporations in sectors such as consumer packaged goods, energy, financial services, retail, and manufacturing, with examples like Unilever, Nestlé, and HSBC. The firm maintains a global presence with over 20 offices across Europe, North America, Australia, and Asia. Anthesis has grown through acquisitions of specialist firms and serves more than 500 clients annually. They emphasize data-driven tools and partnerships with technology providers for emissions tracking software. The company reports facilitating reductions of millions of tonnes of CO2 equivalent for clients.