Star Mountain Capital, a specialized asset management firm, completed the investment in Radius Global Market Research, a market research company. Financial terms were not disclosed. "Partnering with Star Mountain Capital, a specialized investment manager headquartered in New York City, will help Radius accelerate growth. With this investment, Radius will focus on driving brand revenue and profit growth for its clients, and further solidify its position as a premier, integrated research and insights solutions provider," Radius Global Market Research.