Thomvest Ventures is a cross-stage venture capital firm that focuses its investments on financial and real estate technology, cybersecurity, and cloud and AI infrastructure. The firm's strategy involves supporting early to growth-stage companies in these sectors to become industry leaders through mentorship, strategic guidance, and resources.
Deal activity decreased year-over-year (2 deals in the last 12 months vs 4 prior). Average disclosed round size is $58.1M (across 36 rounds with reported amounts).
Portfolio
37
Fund Size
$750M
Top Stage
Series B
Last 12 Mo
2
Team
DB
Don Butler
Managing Partner
UP
Umesh Padval
Director
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
37 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 OPAQUE | Series B | $24M | Feb 2026 |
 Deductive AI | Seed | $7.5M | Nov 2025 |
 Relyance AI | Series B | $32.1M | Oct 2024 |
| SStackGen | Seed | $12.3M | Sep 2024 |
 Coast | Series B | $40M | Jul 2024 |
 Bolster | Series B | $14M | May 2024 |
 Alsym Energy | Series C | $78M | Apr 2024 |
 Cohere | Series C | $270M | Jun 2023 |
 Isovalent | Series B | $40M | Sep 2022 |
| OOpaque Systems | Series A | $22M | Jun 2022 |
 Keyway | Series A | $25M | Jun 2022 |
 Keep Financial | Seed | $9M | May 2022 |
 Harness | Series D | $230M | Apr 2022 |
 CyCognito | Series C | $100M | Dec 2021 |
 Ladder | Series D | $100M | Oct 2021 |
 Ribbon | Series C | $75M | Sep 2021 |
 Obie | Series A | $10.7M | May 2021 |
 Clari | Series E | $150M | Mar 2021 |
| Harness | Series C | $115M | Jan 2021 |
| PPeerStreet | Series C | $60M | Oct 2019 |
 Tala | Series D | $110M | Aug 2019 |
 Carbon Engineering Ltd. | Growth | $68M | Mar 2019 |
 Singular | Series B | $30M | Sep 2018 |
| Clari | Series C | $35M | Mar 2018 |
| EEcobee | Series C | $61M | Mar 2018 |
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Top Co-Investors
GV (Google Ventures)4 shared
Andreessen Horowitz3 shared
Bain Capital Ventures3 shared
Sorenson Capital3 shared
Norwest Venture Partners3 shared
Battery Ventures3 shared
Menlo Ventures3 shared
Unusual Ventures3 shared
M12 (Microsoft)3 shared
OMERS Ventures2 shared
Amazon Alexa Fund2 shared
Camber Creek2 shared
Canvas Ventures2 shared
Crosscut2 shared
Walden Catalyst2 shared
Intel Capital2 shared
Sequoia Capital2 shared
Tenaya Capital2 shared
Lowercase Capital2 shared
Last updated: 12 April 2026