Riot Ventures is a Los Angeles-based multi-stage venture capital firm founded in 2017, investing in deep technology companies that modernize critical industries including aerospace, defense, energy, manufacturing, and robotics. The firm writes checks ranging from $500K at pre-seed up to $100M at growth stage.
They made 1 investments in the last 12 months. Their most common stage is series-a (47% of deals). Average disclosed round size is $67.9M (across 16 rounds with reported amounts).
Portfolio
14
Fund Size
$152M
Top Stage
Series A
Last 12 Mo
2
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
17 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Endurance Energy | Series A | $54M | Jan 2026 |
| KKarman Industries | Series A | $20M | Jan 2026 |
 Blue Water Autonomy | Series A | $50M | Aug 2025 |
| Blue Water Autonomy | Series A | $50M | Jan 2025 |
 Duro Labs | Seed | $7.5M | Jan 2024 |
 Kindo | Unknown | $20.6M | Jan 2024 |
| KKarman Industries | Pre-Seed | $7.5M | Jan 2024 |
 OpenEnvoy | Series A | $15M | May 2023 |
 Kindo | Seed | $7M | Jan 2023 |
 True Anomaly | Series B | $100M | Jan 2023 |
 Elementary | Series B | $30M | Dec 2021 |
| SSystem1 Biosciences | Series A | $25M | Sep 2018 |
| SSystem1 Biosciences | Series A | $25M | Jan 2018 |
 Alloy Enterprises | Series A | — | — |
| SSatomic | Seed | $15M | — |
 Deterrence | Seed | $10.1M | — |
 Decisive | Series D | $650M | — |
Top Co-Investors
Eclipse4 shared
Impatient Ventures3 shared
RRE Ventures3 shared
GV2 shared
Alphabet Inc.2 shared
Eniac Ventures2 shared
New Era Capital Partners2 shared
Marlinspike2 shared
Webb Investment Network2 shared
Dolby Family Ventures2 shared
CRV2 shared
Alexandria Venture Investments2 shared
Liquid 2 Ventures2 shared
The Longevity Fund2 shared
Pfizer Ventures2 shared
ACME Capital2 shared
Menlo Ventures2 shared
Accel2 shared
645 Ventures2 shared
Narya2 shared
Last updated: 9 September 2026