ST. LOUIS—O’Malley Hansen Communications, which has offices in St. Louis and Chicago, has acquired Blick&Staff Communications. OHC’s first acquisition expands the agency’s footprint to include an operation in New York and an expanded social media and digital team.

Blick&Staff founder Harriet Blickenstaff will join OHC as a senior consultant and her team will be incorporated into OHC’s existing offices. Rini Ader, senior vice president, will continue to be based in New York City.

Blick&Staff Communications is well-known for its work on the launch of the Energizer Bunny Facebook, Twitter and YouTube platforms and was also responsible for award-winning cause marketing campaigns, including the nationally recognized Change Your Clock Change Your Battery fire safety program.

O’Malley Hansen has a team of around 15 and provides corporate reputation and brand-building advice to clients including Sara Lee, Playtex and Barclaycard US.