Wind Point Partners, an American private equity firm, completed the acquisition of American Trailer Rental Group, a provider of trailer rental solutions to manufacturing, distribution, and 3PL customers, from Milton Street Capital, a private equity firm focused on basic industrial, manufacturing, distribution, and service companies. Financial terms were not disclosed. "Milton Street has been an outstanding partner. The bottom line is outstanding people, outstanding working relationship, and someone other CEOs should want to work with. They supported our team with insight and capital from day one," John Brooks, ATRG CEO.