Atlantic Street Capital has announced it has acquired Prestige Medical Imaging (PMI).

PMI, based in Newburgh, N.J., is a medical imaging solutions company providing equipment service, maintenance and support to hospitals, physician practices, ambulatory surgery centers and sports teams across the United States. Founded in 2003, the company describes itself as the “largest independent radiology service and solutions provider in the Eastern United States.”

Atlantic Street, based in Stamford, Conn., seeks control equity investments in lower middle market businesses. Founded in 2006, the firm has wide flexibility on investment size in healthcare and other industries. Within healthcare, Atlantic Street targets companies in the provider services, life sciences/pharmaceutical and non-reimbursement industries.

Terms of the acquisition were not disclosed.