Start Fund is a seed to Series A stage investment firm based in San Francisco, California, United States. It has made 11 investments, with focus areas including Data & Analytics, Climate & Energy, AI, Cybersecurity, Logistics & Supply Chain, Education, Gaming, Healthcare, Media & Entertainment, Social & Community. Deal activity increased 100% year-over-year (2 deals in the last 12 months). Their most common stage is seed (82% of deals). Average disclosed round size is $2.8M (across 10 rounds with reported amounts).
Portfolio
11
Fund Size
—
Top Stage
Seed
Last 12 Mo
2
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
11 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 WeatherPromise | Series A | $12.8M | Jan 2026 |
 Zango AI | Seed | $4M | Jul 2025 |
| EETHIACK | Seed | $4M | Dec 2024 |
| SSooqini | Seed | $500K | Sep 2013 |
 ClassDojo | Seed | $1.6M | Aug 2012 |
 Priceonomics | Seed | $1.5M | May 2012 |
 Scan | Seed | $1.7M | Feb 2012 |
| MMinoMonsters | Unknown | — | Mar 2011 |
| AAgile Diagnosis | Seed | $150K | — |
 Kicksend | Seed | $1.8M | — |
 Convore | Seed | $150K | — |
Top Co-Investors
SV Angel5 shared
Y Combinator2 shared
Nexus Venture Partners1 shared
Notion Capital1 shared
Boldstart Ventures1 shared
South Park Commons1 shared
No Label Ventures1 shared
Andreessen Horowitz1 shared
Spark Capital1 shared
CrunchFund1 shared
Crosslink Capital1 shared
Maveron1 shared
Lerer Hippeau1 shared
Clocktower Technology Ventures1 shared
Kapor Capital1 shared
General Catalyst1 shared
Morado Ventures1 shared
NewSchools1 shared
Learn Capital1 shared
Explorer Investments1 shared
Last updated: 21 April 2026