SYN Ventures is a venture capital firm founded in 2021 by former CISOs, CEOs, CTOs, and founders, focused on investing in disruptive cybersecurity, industrial security, and national defense companies. The firm manages approximately $900 million in assets under management and leads late-stage Seed, Series A, and Series B rounds for global cybersecurity companies with enterprise traction.
59% of their portfolio is in Cybersecurity. Deal activity decreased year-over-year (3 deals in the last 12 months vs 9 prior). Their most common stage is series-a (51% of deals). Average disclosed round size is $38.1M (across 62 rounds with reported amounts).
Portfolio
49
Fund Size
—
Top Stage
Series A
Last 12 Mo
3
Team
Jay Leek
Managing Partner & Founder
John Watters
Venture Partner
Rob Potter
Venture Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
Portfolio
| Company | Round | Amount | Date |
|---|---|---|---|
 Nullify | Seed | $12.5M | Feb 2026 |
 CodeIntegrity | Seed | $5M | Jan 2026 |
 Balance Theory | Series A | $19M | Jan 2026 |
 Helmet Security | Seed | $9M | Dec 2025 |
 Terra Security | Series A | $30M | Sep 2025 |
 iCOUNTER | Series A | $30M | Jul 2025 |
 SquareX | Series A | $20M | Apr 2025 |
| MMiggo Security | Series A | $17M | Apr 2025 |
 Miggo | Series A | $17M | Apr 2025 |
 Aiceberg | Seed | $10M | Mar 2025 |
 Conifers.ai | Series B | $25M | Jan 2025 |
 BforeAI | Series B | $10M | Jan 2025 |
 netfoundry | Series A | $12M | Jan 2025 |
| MMitiga Security Inc | Series B | $30M | Jan 2025 |
| MMitiga Security Inc | Growth | $30M | Jan 2025 |
| Helmet Security | Unknown | $9M | Jan 2025 |
| Conifers.ai | Series A | $25M | Jan 2025 |
| BforeAI | Series B | $10M | Oct 2024 |
 Metabase Q | Series A | $11M | Sep 2024 |
| BforeAI | Series A | $15M | Apr 2024 |
 Auguria | Seed | — | Mar 2024 |
 Cranium | Series A | $25M | Oct 2023 |
 Upfort | Series A | — | Oct 2023 |
| Cranium | Seed | $7M | Apr 2023 |
 Revelstoke Security | Series B | $20M | Mar 2023 |
Top Co-Investors
Last updated: 7 October 2026