Sail Research
Sail Research is an artificial intelligence company in San Francisco, United States. It has raised $80.0M across 2 rounds, most recently an $80.0M Series A in June 2026.
Infrastructure for abundant intelligence
- Headquarters
- San Francisco, California
- Employees
- 11–50
- Business Model
- B2B
- Website
- sailresearch.com
- Total Funding
- $80.0M
- Last Round
- $80.0M Series AJun 2026
- Rounds
- 2
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 2 funding rounds and 3 investors for this company. The full record is or through the API.
About
Sail Research builds infrastructure for abundant intelligence — a cost-efficient platform for running leading open-source models for long-horizon AI agents, with OpenAI- and Anthropic-compatible drop-in APIs. Its 'completion window' pricing trades latency for lower token cost, and its Sailboxes offer persistent hosted sandboxes so agents can run indefinitely. The company has raised $80M, with seed led by Sequoia Capital and Series A led by Kleiner Perkins.
Summary
It lists 11–50 employees. It has raised $80.0M in total across 2 rounds, most recently a $80.0M Series A round in Jun 2026. Investors include Kleiner Perkins, Sequoia Capital and KKR.
Tech & App Stack
7 technologies & apps tracked
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Funding History
Jun 2026
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Funding: Series A through Seed. Amounts, valuations, and investors where available.
Investors
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