Murphy & Spitz Green Capital is a private equity investment firm that invests in cumpanies operating in the water technology, solar power, wind power, renewable raw materials and renewable energy sectors. In 2012 Murphy & Spitz Green Capital changed its business model. The company focuses on its two affiliated companies Murphy & Spitz Green Energy, an independent power producer, and Murphy & Spitz Nachhaltige Vermogensverwaltung, an independent portfolio management company, specialized in sustainability investment. The firm was established in 2006 and is headquartered in Bonn, Germany.