Big round · 17 August 2026
River AI raises $1.1B Series A led by General Catalyst
River AI, based in United States, has raised $1.1B in a Series A led by General Catalyst and AMP PBC, announced on 17 August 2026. 3 other investors joined. It is the 43rd largest equity round we recorded in the twelve months to that date, and the 2nd largest Series A of 701. The median Series A over the same period was $20M, so this one is 55 times that.
Raised$1.1B4 sources reported it
StageSeries Afirst round on record
Investors52 named as lead
Where USUnited States
USAIDeveloper Tools
How big is it?
Against every equity round we recorded in the twelve months to 17 August 2026. Ranks count companies, so the same raise reported twice is counted once.
#43equity round of the last twelve months
#2Series A of 701 in that time
#26round in United States, of 1,096
This round$1.1B
Median Series A$20M
55 times the median Series A of the last twelve months.
Who invested
Also in the round
Funding history
- August 2026Series A$1.1B
This is the first round we hold for the company.
Reported by
- TechCrunch11 August
- TechStartups11 August
- Ventureburn11 August
- AlleyWatch17 August
The round's figures come from these reports; each link opens the original.
