Minneapolis-based HGA Architects and Engineers, one of Minnesota's largest architectural firms, announced Tuesday that it has acquired Alexandria, Virginia-based Wisnewski Blair & Associates, Ltd. (WBA).

Financial terms of the acquisition, which became effective on January 1, were not disclosed. WBA will operate as a wholly owned subsidiary of HGA.

HGA said that the purchase will add to its expanding roster of projects on the East Coast in the federal and health care fields.

“This is an exciting opportunity for both HGA and WBA,” Stephen Fiskum, chief operating officer of HGA, said in a statement. “WBA is an outstanding design firm that shares HGA's core values for client service, sustainable design, collaboration, and design excellence.”

According to HGA, WBA has a strong existing client base in the commercial, federal, and public sectors.

WBA, a 65-person firm, offers architectural services primarily for clients in the Washington, D.C. area. Among its body of work are offices for the Federal Bureau of Investigation and the U.S. Department of Defense, and projects for George Mason University in Fairfax, Virginia.

HGA's recent projects on the East Coast include the Children's National Medical Center in Washington, D.C., and the Virtua Health Replacement Hospital in New Jersey, among others.

HGA is Minnesota's third-largest architectural firm based on architectural billings from offices within the state, which totaled $21.8 million in 2009.