WASHINGTON, DC—Government contracting firm Tech-Marine Business has expanded its headquarters operations and extended its lease at 100 M St. SE.

Tech Marine signed a new 11-year old lease for 21,370-square feet of space at the 243,221-square-foot building, jointly owned by Houston-based Lionstone Investments and Hermes Investment Management of London.

Washington, DC-based West, Lane & Schlager Realty Advisors, LLC announced the lease transaction, which nearly doubles Tech-Marine Business' headquarters space. Tom Fuge, an associate with the firm, and Rich Lane represented Tech-Marine Business in the lease transaction.

Tech-Marine Business recently relocated from 11,258 square feet on the fourth floor at 100 M Street, SE, to its new space on the eighth floor of the office building located in the Capital Riverfront submarket.

“Given our client's core capabilities and the nature of its day-to-day operations, a location with convenient access to NAVSEA (Naval Sea Systems Command) represented the highest priority,” Fuge states “As such, we focused our search on the Capitol Riverfront submarket, as well as Crystal City. By remaining at 100 M Street, SE, Tech-Marine Business can occupy an entire floor in one of D.C.'s most increasingly popular neighborhoods, with close proximity to Metro and other amenities.”