• BoomTown, Tuesday, June 15, 2010 8:14 AM

Margit Wennmachers -- who BoomTown describes as "one of Silicon Valley's leading public relations and communications execs -- is joining Andreessen and Ben Horowitz's VC firm Andreessen Horowitz as partner.

Wennmachers, co-founded OutCast Communications, whose clients include Yahoo, and, Facebook, as well as Andreessen Horowitz. "The move will make her one of a handful of women at high-profile venture outfits," notes BoomTown's Kara Swisher. Starting in September, Wennmachers will be expected to bring marketing expertise to Andreessen Horowitz, and its portfolio of companies. "It's a chance to build a top-notch VC firm and work with talented entrepreneurs," Wennmachers said in an email to BoomTown. Andreessen Horowitz was founded a year ago with $300 million in funding. Clients include Skype, Rockmelt and Zynga. More recently, mobile payments startup Boku has raised a new round of funding from the firm.

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