According to ProFootballTalk.com's Rumor Mill, San Francisco and Pittsburgh have both shown interest in Alan Branch at the Combine.

From ProFootballTalk:
Our moles in Indy tell us that both the San Francisco 49ers and the Pittsburgh Steelers are interested in Michigan defensive tackle Alan Branch. Many think that Branch can play defensive tackle in the 3-4 or the 4-3, and the Steelers likely will be using both fronts as coach Mike Tomlin, a Tampa Two expert, puts his stamp on the team.

The only problem is that both the 49ers and the Steelers likely draft too low to get Branch. The Niners are the Eleveners in round one, and the Steelers pick at 15.