Sonja Hoel Managing Director, Menlo Ventures Sonja joined Menlo Ventures in 1994. Prior to Menlo Ventures, she was in business development for Symantec Corporation and was an investment analyst for TA Associates. Sonja focuses primarily on early-stage software, communications and Internet investments. Her recent investments and board seats include: Acme Packet, MailFrontier, nCircle Network Security, and iS3. mailfrontier