North Castle Partners, a Greenwich-based investment firm specializing in the healthy living & aging sector, today announced that it has acquired Orchid Island Juice Company of Fort Pierce, FL, furthering North Castle's position as the leader in premium healthy beverages. "Orchid Island has shown tremendous growth and will greatly complement our existing brands and further enhance our leading position in the fresh juice category," said Ellen Marram, a General Partner at North Castle Partners who is also chairman of North Castle's healthy beverage businesses.