Sigma Partners

Sigma Partners is a major venture capital firm based in Silicon Valley and Boston. Sigma Partners invests in early-stage information technology companies (semiconductor, software and hardware).
The firm was founded in 1984 by J. Burgess Jamieson and C. Bradford Jeffries.
The Sigma Partners team includes Bob Davoli and Peter Solvik.
Notable investments have included Atria Software, Cascade Communications, Chipcom, Electronic Arts, EqualLogic, GeoTel Communications, Internet Security Systems, WordStream, Phoenix Technologies, PSINet, Replay Solutions, Vermeer Technologies, Vignette, Virtusa, and YouSendIt.
 
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