SAN FRANCISCO--Horn Group has strengthened the leadership team in its San Francisco and New York offices.

In San Francisco, the firm has promoted Tim O’Keeffe to senior managing director and GM. O'Keeffe, who joined Horn in 2011 as San Francisco MD, will report to founder, president and CEO Sabrina Horn.

In New York, the company has promoted Todd Cadley to MD and hired Kelli Gail as SVP. Both positions report to Ben Billingsley, a partner at Horn. Cadley joined Horn one year ago, while Gail previously worked at Ogilvy PR.

“Our recent momentum has proven that bringing together the power of public relations, interactive design and social media can drive breakthrough results,” said Horn in a statement. “I couldn’t be more proud of the success we’ve delivered for our clients and of the leadership team that continues to innovate the way we do communications.”