The Federation of Synagogues has increased its presence in the kosher market following the launch of its controversial meat operation this year.
Shefa Mehadrin, which has two butcher's shops in Manchester and one in Golders Green, and a processing plant, this week agreed to come under Federation supervision.
Federation president Andrew Cohen said that the move was no different to licensing bakeries or restaurants, which it already does. "Just as you have Federation-licensed products in Tesco and Sainsbury's, this is another supplier," he said.
The Federation's decision to launch its own shechita venture was attacked at the time by the London Board for Shechita, the main kosher meat licensing body for the capital.