# Instinct raises $250M Series B led by Index Ventures

> Instinct, based in United States, has raised $250M in a Series B led by Index Ventures and Benchmark, announced on 28 August 2026.

Source: https://millionrounds.com/news/rounds/instinct-series-b-2026-08 (Millionrounds; every figure on the page links to its filing or article)

Raised **$250M** 3 sources reported it

Stage **Series B** first round on record

Investors **2** 2 named as lead

Where **US** United States

AI

## How big is it?

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

**#200** equity round of the last twelve months

**#28** Series B of 388 in that time

**#140** round in United States, of 1,111

This round **$250M**

Median Series B **$50M**

5.0 times the median Series B of the last twelve months.

## Who invested

- [**Index Ventures** 119 rounds in the last twelve months *Led*](https://millionrounds.com/fund/index-ventures)
- [**Benchmark** 33 rounds in the last twelve months *Led*](https://millionrounds.com/fund/benchmark)

## Funding history

- August 2026 Series B **$250M**

This is the first round we hold for the company.

## Reported by

- TechCrunch 24 August
- TechStartups 27 August
- Crunchbase News 28 August

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

## Other big rounds that week

[**Owner** $240M Series D](https://millionrounds.com/news/rounds/owner-series-d-2026-08)[A **AusperBio Therapeutics** $120M Series C](https://millionrounds.com/news/rounds/ausperbio-therapeutics-series-c-2026-08)[**Generalist** $200M Series B](https://millionrounds.com/news/rounds/generalist-series-b-2026-08)[**Gatik** $200M Series D](https://millionrounds.com/news/rounds/gatik-series-d-2026-08)[**Emerald AI** $150M Series A](https://millionrounds.com/news/rounds/emerald-ai-series-a-2026-08)[**General Intuition** $220M Growth](https://millionrounds.com/news/rounds/general-intuition-growth-round-2026-08)

[The company **Instinct on Millionrounds** *→*](https://millionrounds.com/company/instinct)[Weekly roundup **Week of 24 August** *→*](https://millionrounds.com/news/weekly/2026-08-24)[Monthly roundup **August 2026** *→*](https://millionrounds.com/news/monthly/2026-08)

**How this article is made**

We write one for every equity round of $100M or more that at least two sources reported. It is put together from our record of rounds, not rewritten from the reports: the ranks and medians count every equity round we read in the twelve months to the round's date. [How we read rounds](https://millionrounds.com/methodology) · [Report a mistake](https://millionrounds.com/corrections)