The Movementâ€™s phone provider was crowned as an innovative enterprise that tackles a social and environmental need, for which it received a Â£10,000 prize.
The other winners were CEiS, NMC Design + Print and The Wise Group, whicb each received Â£5,000, as did Sunlight Social Enterprises CIC, the winner of Best New Social Enterprise.
Fyndoune Community College was the first winner of the newest award, Best Social Enterprise in Schools, and received a Â£1,000 cash prize.
Vivian Woodell, Chief Executive of the Phone Co-op, said â€œOur success and continued growth demonstrate that consumers and businesses alike are increasingly interested in using suppliers with a fair and sustainable approach to business.â€
Jonathan Bland, Chief Executive of the Social Enterprise Coalition, added: â€œFor the Phone Co-op to thrive and continue to grow in such a competitive market demonstrates the power of a business model that operates on the core values of quality, community and sustainability.â€
Kevin Brennan, Minister for the Third Sector, said: â€œIn my previous job at the Department for Children, Schools and Families it was clear to me the difference social enterprise can make to the lives of our young people. This yearâ€™s winners provide yet more inspiring examples of the innovative, often unique ways in which someone can make our country better by combining social drive with real business acumen.â€