New Mountain Capital, a private equity firm, agreed to acquire a majority stake in Citrin Cooperman, a full-service advisory, tax and assurance firm. Financial terms were not disclosed. "We have known the leadership of Citrin Cooperman for ten years, and we are excited to provide strategic and financial resources to the partners of Citrin Cooperman as they accelerate their organic and inorganic expansion. Citrin Cooperman is an outstanding firm, and we are pleased with all the progress that has already been made in the first six months since our investment," Andre Moura, New Mountain Capital Managing Director.