California lawyer Denny Kwon, who spent the past decade advising deals at Wilson Sonsini Goodrich & Rosati, has left the Silicon Valley firm to join Covington & Burling.

Kwon focuses his practice on mergers and acquisitions. He started working in Covington's San Francisco office Monday as a partner in its corporate practice.

“I have seen complex regulatory issues arise more frequently for technology companies, not only in M&A transitions but also in their ordinary day to day operations,” said Kwon, noting that he was drawn to the Washington, D.C.-based firm's focus on regulatory and public policy matters.