Wind Point Partners, a Chicago-based private equity firm, has purchased D&H United Fueling Solutions, a provider of petroleum fueling and electric vehicle charging system services and a portfolio company of KLH Capital.

D&H United provides testing, inspection, repair and installation services for fueling stations and electric vehicle charging infrastructure in the U.S. The company also provides compliance testing for tanks and lines in 25 states through its Valley Tank Testing subsidiary. Harris Williams advised D&H United in the transaction.

“We continue to see strong investor appetite for companies like D&H United that provide mission-critical, non-deferrable services in fragmented industries,” comments Graham Gillam, a director at Harris Williams. “The company has done an excellent job executing on its growth strategy, both organically and through M&A, and we look forward to seeing the next phase of growth under Wind Point’s ownership.”