# Upwind raises $400M Series C led by Bessemer Venture Partners

> Upwind, based in United States, has raised $400M in a Series C led by Bessemer Venture Partners, announced on 29 October 2026. 11 other investors joined.

Source: https://millionrounds.com/news/rounds/upwind-series-c-2026-10 (Millionrounds; every figure on the page links to its filing or article)

Raised **$400M** 10 sources reported it

Stage **Series C** 2 earlier rounds on record

Investors **12** 1 named as lead

Where **US** United States

AI Cybersecurity

## How big is it?

Against every equity round we recorded in the twelve months to 29 October 2026. Ranks count companies, so the same raise reported twice is counted once.

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

**#29** Series C of 233 in that time

**#98** round in United States, of 1,308

This round **$400M**

Median Series C **$100M**

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

## Who invested

- [**Bessemer Venture Partners** 135 rounds in the last twelve months *Led*](https://millionrounds.com/fund/bessemer-venture-partners)

Also in the round

- [Salesforce Ventures](https://millionrounds.com/fund/salesforce-ventures)
- [Craft Ventures](https://millionrounds.com/fund/craft-ventures)
- [Greylock](https://millionrounds.com/fund/greylock-partners)
- [TCV](https://millionrounds.com/fund/tcv)
- [Picture Capital](https://millionrounds.com/fund/picture-capital)
- [Canapi Ventures](https://millionrounds.com/fund/canapi-ventures)
- [Leaders Fund](https://millionrounds.com/fund/leaders-fund)
- [Penny Jar Capital](https://millionrounds.com/fund/penny-jar-capital)
- [Alta Park Capital, LP](https://millionrounds.com/fund/alta-park-capital-lp)
- [Swish Ventures](https://millionrounds.com/fund/swish-ventures)
- [Cerca Partners](https://millionrounds.com/fund/cerca-partners)

## Funding history

- October 2026 Series C **$400M**
- January 2026 Series B **$250M**
- November 2024 Series A **$100M**

$750M raised across the 3 rounds we hold.

## Reported by

- thecyberwire.com 27 October
- decrypt.co 28 October
- investx.fr 28 October
- NewsCord 28 October
- opentools.ai 28 October
- Silicon Angle 28 October
- srnnews.com 28 October
- Leap Ventures 28 October
- Tech Funding News 28 October
- helpnetsecurity.com 28 October

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

## Other big rounds that week

[**Fractile** $700M Series C](https://millionrounds.com/news/rounds/fractile-series-c-2026-10)[**Serval** $150M Series C](https://millionrounds.com/news/rounds/serval-series-c-2026-10)[**Cohere** $5.0B Series E](https://millionrounds.com/news/rounds/cohere-series-e-2026-10)[**Approaching.AI** $193M Series B](https://millionrounds.com/news/rounds/approaching-ai-series-b-2026-10)[**Group14 Technologies** $169M Series D](https://millionrounds.com/news/rounds/group14-technologies-series-d-2026-10)[D **Dulo** $130M Seed](https://millionrounds.com/news/rounds/dulo-seed-round-2026-10)

[The company **Upwind on Millionrounds** *→*](https://millionrounds.com/company/upwind)[Weekly roundup **Week of 26 October** *→*](https://millionrounds.com/news/weekly/2026-10-26)[Monthly roundup **October 2026** *→*](https://millionrounds.com/news/monthly/2026-10)

**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)