Reston-based marketing firm Buffalo Groupe LLC has acquired Charlotte, North Carolina-based 54 Brands, the company's third acquisition since forming in February. Terms of the deal were not disclosed. 54 Brands, founded in 1985, is a marketing and communications company with experience in several categories including golf, furniture, higher education, professional services, franchising and finance. The company's clients include the Golf Channel, Golf Now, Global Value Commerce Inc., High Point...