San Francisco-based Lewis PR has acquired Davies Murphy Group of Burlington, Mass., to bolster its East Coast presence and create a $45M global firm.
Eric Davies and Andy Murphy will continue to lead the 65-staffer DMG, which also has offices in the U.K. and Germany.
Davies said the deal "makes a tremendous amount of sense" for both firms, adding the combine creates a "truly global agency" for tech PR and marketing services.
Lewis CEO Chris Lewis added: "There can be no clearer statement of our global ambitions than this deal with DMG."
DMG had tech PR revenues of nearly $9M in 2012.
Lewis, which acquired Leads United of Belgium in 2009 and Bay Area social media shop One PR in 2010, said the acquisition brings its U.S. revenues to $20M and $45M globally with about 420 staffers.
Lewis' travel division heads completed a buyout from the firm in June 2011 as Lewis pledged to focus more on consumer and tech work.