Big round · 28 September 2026

Instinct raises $1.0B Series C

By Millionrounds ResearchPublished 29 September 2026Updated 2 October 2026

Instinct, based in United States, has raised $1.0B in a Series C, announced on 28 September 2026. 4 other investors joined. It is the 47th largest equity round we recorded in the twelve months to that date, and the 5th largest Series C of 215. The median Series C over the same period was $100M, so this one is 10 times that. Its previous round on record was a Series B of $250M in August 2026, 1 month earlier.

Raised$1.0B3 sources reported it
StageSeries C1 earlier round on record
Investors4no lead named
Where USUnited States

AIB2CSoftware

How big is it?

Against every equity round we recorded in the twelve months to 28 September 2026. Ranks count companies, so the same raise reported twice is counted once.

#47equity round of the last twelve months
#5Series C of 215 in that time
#29round in United States, of 1,134
This round$1.0B
Median Series C$100M

10 times the median Series C of the last twelve months.

Who invested

In the round

Funding history

  1. September 2026Series C$1.0B
  2. August 2026Series B$250M

$1.3B raised across the 2 rounds we hold.

Reported by

  1. TechStartups28 September
  2. Tech Funding News29 September
  3. Crunchbase News2 October

The round's figures come from these reports; each link opens the original.

Other big rounds that week

AArmadin$256M Series BSimple Energy$180M Series CEliseAI$350M GrowthJeeves$110M Series CQuartermaster$140M Series B
The companyInstinct on Millionrounds→Weekly roundupWeek of 28 September→Monthly roundupSeptember 2026→