ICR Inc. has acquired Lumina Communications, San Jose-based B2B technology firm that has more than 40 staffers and 50+ clients.

Specializing in cybersecurity, enterprise software and IT infrastructure, Lumina will join and double the size of ICR’s technology & mobility PR practice.

Tom Ryan, ICR CEO and co-founder, said technology has been a longstanding area of growth for his firm. He’s bullish on the future as “as emerging solutions transform how all industries operate.”

Bo Park, who heads ICR’s tech practice, will work closely with Hugh Burnham, CEO and founder of Lumina. As managing partner of ICR, Burnham will report to Ryan and president Don Duffy.

Burnham will continue in his Lumina leadership post and focus on expanding the combined group’s business via deepening ties with west coast start-ups, venture capitalists and private equity firms.

With the acquisition, Lumina clients gain access to a broader suite of integrated services including investor relations, capital markets advisory, crisis and special situations, investor access, branding and growth marketing.

Lumina also has offices in New York and San Diego.