TheRockGroup (TRG) is a sustainability consultancy firm with offices in Amsterdam, Brussels, and Cape Town. They offer tailored services to help stakeholders transition towards a sustainable economy and society. Their services include acting as an in-house sustainability manager for businesses, integrating sustainability into day-to-day operations, and providing expertise in circular economy transitions[1][2]. Their target audience includes businesses seeking to embed sustainability practices. The unique selling proposition is their "Sustainability as a Service" model, which allows them to work closely with clients as part of their team[2].