Sayres Defense, a provider of defense mission support services to the U.S. Navy, Department of Defense and National Security community and backed by Broadtree Partners has bought Global Systems Technologies.

GST offers test and evaluation services, model-based systems engineering, logistics, research and development to defense and homeland security customers. With this acquisition, GST becomes the third company in Broadtree Partners’ GovCon platform, joining Sayres Defense and Joint Research and Development.

Holland and Knight served as legal counsel to Broadtree Partners, Sayres Defense and JRAD for the transaction. G Squared Capital Partners served as financial advisor and Miles and Stockbridge served as legal counsel to GST.