
AIBiotech & Life SciencesDefense & SpaceEnterprise SoftwareFintechCrypto & Web3GamingCybersecurityClimate & EnergyManufacturing
Side Door Ventures is a multi-strategy venture capital firm that backs audacious founders building frontier technologies. The firm invests broadly across software, life sciences, space, deep tech, blockchain, gaming, and financial services from pre-seed through Series B.
Deal activity decreased year-over-year (1 deal in the last 12 months vs 3 prior). Their most common stage is seed (42% of deals). Average disclosed round size is $5.8M (across 28 rounds with reported amounts).
Portfolio
30
Fund Size
—
Top Stage
Seed
Last 12 Mo
1
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
31 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| Seed | $5M | Nov 2025 | |
| TTorram Labs | Pre-Seed | — | Jan 2025 |
| Series A | $15M | Jan 2025 | |
| Unknown | $10M | Dec 2024 | |
| PPell Network | Pre-Seed | $3M | Oct 2024 |
| Series A | $6M | Apr 2024 | |
| SScallop | Unknown | $3M | Mar 2024 |
| Unknown | $3M | Mar 2024 | |
| Unknown | $3M | Jan 2024 | |
| AAsymmetry Finance | Seed | $3M | Jan 2024 |
| Seed | $3M | Jan 2024 | |
| Pre-Seed | $1.3M | Dec 2023 | |
| Seed | $8.5M | Oct 2023 | |
| Series A | $12M | Jul 2023 | |
| Series B | $25M | May 2023 | |
| VVarda Space Industries | Seed | $9M | May 2023 |
| Seed | — | Jan 2023 | |
| Seed | $1.5M | Apr 2022 | |
| Pre-Seed | $2.2M | Mar 2022 | |
| Seed | $5.5M | Nov 2021 | |
| Pre-Seed | — | Jan 2021 | |
| Seed | $11M | Jan 2021 | |
| RRainmaker Games | Seed | $4.7M | Dec 2020 |
| Series A | $5M | — | |
| Seed | $1.3M | — |
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Top Co-Investors
CMS Holdings6 shared
Republic3 shared
Oak Grove Ventures3 shared
Signum Capital3 shared
UOB Venture Management3 shared
Techstars3 shared
Draper Associates3 shared
Boost VC2 shared
Precursor Ventures2 shared
TRGC2 shared
LongHash Ventures2 shared
Bankless Ventures2 shared
HTX Ventures2 shared
Laser Digital2 shared
Draper Dragon2 shared
Hypersphere Capital2 shared
Avon Ventures2 shared
Republic Crypto2 shared
Talis Capital1 shared
Earthrise Ventures1 shared
Last updated: 7 October 2026