Jackson Square Ventures (formerly Sigma West) is an early-stage venture capital firm based in San Francisco that invests in B2B SaaS, marketplace, and AI-native companies. The firm was created in 2011 when the team spun out from Sigma Partners and rebranded in 2015.
Deal activity increased 100% year-over-year (2 deals in the last 12 months). Their most common stage is series-a (40% of deals). Average disclosed round size is $63.3M (across 54 rounds with reported amounts).
Portfolio
40
Fund Size
$193M
Top Stage
Series A
Last 12 Mo
2
Team
Pete Solvik
Managing Director
Dan Preston
Venture Partner
Johnny Brackett
Portfolio Marketing
Kathleen Connolly
Operations
BS
Bob Spinner
Founding Partner, Managing Director
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
57 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Artera | Growth | $65M | Dec 2025 |
 GitLaw | Pre-Seed | $3M | Nov 2025 |
 Trust and Will | Series C | $25M | Jan 2025 |
 Strava | Series D | $2.2B | Jan 2025 |
 Cloverleaf AI | Seed | $2.8M | Nov 2024 |
 Harness Wealth | Series A | $17M | Mar 2024 |
 Ziplines Education | Series A | — | Feb 2024 |
 Clearstory | Series B | $16M | Jan 2024 |
 1Uphealth | Series C | $40M | Jan 2023 |
| 11up Health | Series A | $40M | Jan 2023 |
 Crowdbotics | Series A | $22M | Jan 2022 |
 Spiceology | Unknown | $7M | Jan 2022 |
| Harness Wealth | Series A | $15M | Jun 2021 |
| 1Uphealth | Series B | $25M | Jan 2021 |
| EExtracker | Seed | — | Jan 2021 |
 Lyte | Series B | $33M | Dec 2020 |
| WWell Health | Series C | $45M | Nov 2020 |
| Strava | Series F | $110M | Nov 2020 |
 Seismic | Series F | $92M | Sep 2020 |
 Crexi | Series B | $30M | Jan 2020 |
 Outlier | Series A | $11.7M | Jan 2020 |
 Trust & Will | Series B | — | Jan 2020 |
| Lyte | Series A | $15M | Oct 2019 |
 Waterline Data | Series B | $14.5M | Oct 2018 |
| Outlier | Series A | $6.2M | Jul 2018 |
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Top Co-Investors
Lightspeed Venture Partners4 shared
Techstars4 shared
Eniac Ventures4 shared
Building Ventures4 shared
Cloud Apps Capital Partners4 shared
RJT Credit4 shared
Founder Collective3 shared
500 Global3 shared
General Catalyst3 shared
Tectonic Ventures3 shared
T. Rowe Price3 shared
The LegalTech Fund3 shared
Fidelity Investments3 shared
F-Prime Capital3 shared
GS Futures3 shared
Creandum3 shared
Western Digital3 shared
Rosecliff3 shared
Link Ventures3 shared
Last updated: 7 October 2026