Brightstar Capital Partners, a private equity firm focused on investing in closely- held companies, completed the acquisition of a majority stake in Amerit Fleet Solutions, a provider of fleet maintenance and management services, from Ridgemont Equity Partners, a private equity firm. Financial terms were not disclosed. "Amerit will remain focused on ensuring the maximum uptime, safety and reliability of our customers' individual fleets. Our partnership with Brightstar supplies us with additional resources and relationships to capitalize on the significant growth potential with both new and existing customers across diverse end markets," Dan Williams, Amerit Co-Founder and CEO.