Rock Hill Capital, a private equity firm and Cynosure Group, a a private equity firm completed the investment in Service Truck Depot, a provider of work-ready service and mechanics trucks, custom truck upfits and builds, and in-house designed work truck accessories. Financial terms were not disclosed. “We are excited to partner with Rock Hill and Cynosure to continue our growth and further our product portfolio expansion to better serve our customers and reach new and growing end markets,” Danny Burnett, Co-Founder Service Truck Depot.