Sigma Prime Ventures is an early-stage venture capital firm based in Boston that invests in technology companies solving hard business problems with SaaS, cloud, mobile, disruptive technologies, and technology-enabled services. The firm was spun out of Sigma Partners and formally established in 2012, with its partners tracing their investing lineage back to 1984.
40% of their portfolio is in Marketing & Advertising. Their most common stage is series-b (40% of deals). Average disclosed round size is $9.6M (across 5 rounds with reported amounts).
Portfolio
5
Fund Size
$115.6M
Top Stage
Series B
Last 12 Mo
0
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
5 investments
Top Co-Investors
StarVest Partners2 shared
Greycroft2 shared
Kleiner Perkins1 shared
Scale Venture Partners1 shared
.406 Ventures1 shared
Sapphire Ventures1 shared
Vista Equity Partners1 shared
Techstars1 shared
F-Prime Capital1 shared
Boston Seed Capital1 shared
Devonshire Investors1 shared
#ANGELS1 shared
Last updated: 8 September 2026