United States · 
Who invested in OpenRouter?
OpenRouter's investors include Andreessen Horowitz, Menlo Ventures, Sequoia Capital, Transpose Platform Management and CapitalG, and 6 more on record. CapitalG led its latest round.
2026
$40MSeries A$113MSeries B
United States · Series B startup
Who invested in OpenRouter
2 rounds we have observed, with the 11 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
Raised 5 months ago
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Funding summaryUpdated 5 Nov 2026
$153Mraised across 2 rounds since 2025, from 7 sources
$40MSeries A$113MSeries B
- Latest round
- Series B, $113MMay 2026
- Led by
- CapitalG
- Step-upi
- 2.8×
- Investors
- 11 (3 led)
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series A, $40M Jul 2025
- Biggest round
- $113M Series B · May 2026
- Between rounds
- 11 months from the last two
The rounds
- May 2026Series B$113M6 new4 returning
CapitalGLead
Sequoia Capital
Andreessen Horowitz
Menlo Ventures
nVentures- Transpose Platform Management
ServiceNow
Databricks
Snowflake VenturesMongoDB Ventures
Reported by TechCrunch and 3 othersSEC filing: $113M sold
- Jul 2025Series A$40M5 new
Reported by TechStartups and 2 othersSEC filing: $30M sold, first sale May 2025
Funding filed with regulators
OpenRouter filed 2 raises, $143M in all. Filings say how much was sold and to how many investors; they never name the investors.
- Jul 2026$113MSEC Form D
- May 2025$30MSEC Form D
Who was in which round
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Everyone who backed them
Transpose Platform ManagementVC firm2rounds
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Quick answers about OpenRouter
How much has OpenRouter raised?
OpenRouter has raised $153M across 2 rounds since 2025.
When did OpenRouter last raise?
OpenRouter's most recent round was a Series B of $113M in May 2026, led by CapitalG.
What was OpenRouter's biggest round?
Its most recent round, $113M in May 2026, is also its largest on record.
Who backed OpenRouter first?
OpenRouter's first round on record, in Jul 2025, was backed by Andreessen Horowitz, Menlo Ventures and Sequoia Capital and 2 others.
What stage is OpenRouter at?
OpenRouter's latest named round is a Series B, in May 2026.
Where is OpenRouter based?
OpenRouter is based in the United States.
Who led OpenRouter's rounds?
Andreessen Horowitz led the Series A in 2025; CapitalG led the Series B in 2026.
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