Sabrina Guttman (right) has been named Burson-Marsteller‘s U.S. technology practice chair. She joined the firm in August 2011 as deputy tech practice chair. She’s also the lead on the company’s SAP account.

Guttman went to B-M from Ruder Finn, where she spent a few short months as that firm’s tech and innovation practice leader. She had previously worked at B-M between 2005 and 2007.

The firm has also named Michelle Stevenson MD of the U.S. consumer and brand marketing practice. Her focus in the position will be on sponsorships, celebrity spokespeople, events, and overall brand building. She’ll also be leading the Saban Brands U.S., The San Diego Zoo, and Konami.

Stevenson was previously SVP and global co-chair of Fleishman-Hillard’s FH Entertainment practice where she led the North American communications for Tourism Australia. Her prior experience at The Lippin Group included work with the Emmy and People’s Choice awards. She’ll be based in Los Angeles.