Investor profile
Side Door Ventures
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Side Door Ventures is a global, generalist venture capital firm that invests in 'audacious founders building the future at the fringe.' The firm backs teams across software, life sciences, space, frontier tech, blockchain, gaming, and financial services that aim to transform industries and improve lives. SDV deliberately operates a multi-fund model — comprising 14 smaller vehicles ($10M–$30M each) including a Seed Fund, Michigan Fund, Digital Asset Fund, and Opportunity Fund — believing smaller, focused funds generate superior return multiples. The firm's edge is a founder-first approach: its team of founders, biotech scientists, space engineers, and growth experts engages companies as peers before writing checks, enabling access to competitive rounds and authentic founder relationships.
Notable quotes
“I named the fund Side Door Ventures because they never saw it coming when I would meet with the founder. They just thought I was mentoring them, and then I would suddenly be like, 'I'd like to write a half million dollar check.'”
“If you're building a fund to please people covering their ass, you're not building a fund for optimal returns. And if I was building a fund for optimizing returns, and if this was my money, I would go the opposite way and make a bunch of small funds.”
“Side Door has averaged 61% gross internal rate of return across all funds since its launch and has over 100 companies in its portfolio.”
Recent investments
| Company | Round | Size | Date |
|---|---|---|---|
| K2 Space | Seed | — | 2024 |
| Mysten Labs | Seed | — | 2024 |
| Strata Robotics | Seed | $5m | 2026-04 |
| Uniblock | Seed | $5m | 2026-04 |
| MightyFly | Seed | $10m | 2026-04 |
| Varda Space Industries | Series A | — | 2022 |
| EtherFi | Seed | — | 2023 |
| Plaid | Growth | — | — |
| Pell Network | Seed | — | 2025-01 |
| Stablecorp | Seed | — | 2025-05 |
Frequent co-investors
| VC firm | Deals together |
|---|---|
| Blockchain Founders Fund | 20 |
| Cypher Capital | 6 |
| Cogitent Ventures | 5 |
| Shima Capital | 5 |
| Y Combinator | 4 |
| Boost VC | 3 |
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