Ridgemont Equity Partners, a Charlotte-based middle market buyout and growth equity investor, completed the acquisition of SEKO Logistics, a global freight forwarder and third-party logistics provider, from Greenbriar Equity Group, a New York-based private equity firm. Financial terms were not disclosed. "Today’s announcement marks the next stage of SEKO’s growth ambition. We are always focused on our clients, first and foremost, and how we can best serve their supply chain and demand chain needs," James Gagne, SEKO President and CEO.