William Davisson is a partner in the firm's Technology Companies and Private Equity Groups. He joined Goodwin Procter as a founding partner of the Silicon Valley office in 2007. From 2007 through 2010, he served as Hiring Partner for the Silicon Valley office.

Mr. Davisson represents public and private companies and private equity firms in merger and acquisition transactions. He also represents companies and investors in financing transactions. In addition, Mr. Davisson serves as regular outside corporate and securities counsel for a number of public and private companies. Representative company clients include 1010data, Alarm Capital, CollabRx, Clarus Marketing, GetGoing, GrubHub, Osito, Ostrovok.ru, Physicians Care Alliance, Proof Research, Renewable Energy Trade Board, and The Retail Equation. Representative investor clients include Apoletto, Benchmark, Delphi Ventures, Digital Sky Technologies, Highland Capital Partners, Lia Capital Partners, Mayfield Fund, Norwest Venture Partners, Rushmore Partners, Sequoia Capital, Start Fund and Whitefish Frontiers.