Sustainable Energy First is a UK-based energy and sustainability consultancy founded in 1997. They specialize in solving energy management problems for large commercial estates, focusing on reducing carbon footprints. Their services include decarbonization strategies, renewable energy trading, and corporate power purchase agreements. The target audience is the UK's largest enterprises across various sectors. Their unique selling proposition (USP) is a commitment to sustainability, sharing decarbonization targets with clients, and offering a comprehensive sustainability ecosystem that integrates people, technology, and data to drive environmental, economic, and social improvements[1][3].