The professional services firm SM&A has acquired the defense firm Black Ram Engineering Services, boosting its program services offerings.

Terms of the deal, which closed in late August, were not disclosed.

Black Ram, which is based in Washington, provides engineering services for land, sea and air defense platforms. Its customers include large defense prime contractors and commercial aerospace companies.

Black Ram’s expertise is in systems engineering, design, analysis, test and sustainment engineering capabilities, and in the unmanned aerial vehicle market. The company’s business capture capability is focused on proposal development and management, program architecture development and post-submittal support.

“The acquisition strengthens and expands our current offerings in both program services and competition management and provides our clients a more extensive capability to support all phases of the project life-cycle,” Cathy McCarthy, president and CEO of California-based SM&A, said in a statement.

SM&A provides capture and proposal management consulting, and comprehensive program services and earned value management systems to a number of prime contractors serving the federal government, primarily the Defense Department. SM&A touts an 85 percent win rate.

Houlihan Lokey served as Black Ram’s financial adviser on the deal. SM&A is a portfolio company of the private equity firm Odyssey Investment Partners.