# Windsor.io funding: rounds and investors

> Windsor.io has raised $2.6M across 1 round since 2021. Investors include Y Combinator, Citibank and Precursor Ventures. Every round with its source.

Source: https://millionrounds.com/company/windsor-io (Millionrounds; every figure on the page links to its filing or article)

United States · [Seed startup](https://millionrounds.com/companies)

# Who invested in *Windsor.io*

One round we have observed, with the 7 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

AI

Y Combinator: W19

Funding summary Updated 26 Oct 2026

**$2.6M** raised across 1 round since 2021, from 1 source

- **Latest round:** Seed, $2.6M Oct 2021
- **Investors:** 7

See who backed them

## The rounds

- **Oct 2021** Seed **$2.6M** [Y Combinator](https://millionrounds.com/fund/y-combinator) [Citibank](https://millionrounds.com/fund/citi) [Precursor Ventures](https://millionrounds.com/fund/precursor-ventures) [Afore Capital](https://millionrounds.com/fund/afore-capital) [Guillermo Rauch](https://millionrounds.com/fund/guillermo-rauch) [Shrug Capital](https://millionrounds.com/fund/shrug-capital) [Four Cities Capital](https://millionrounds.com/fund/four-cities-capital) Source recorded

## Everyone who backed them

[Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **1** round

[Citibank](https://millionrounds.com/fund/citi) Growth equity **1** round

[Precursor Ventures](https://millionrounds.com/fund/precursor-ventures) VC firm **1** round

[Afore Capital](https://millionrounds.com/fund/afore-capital) VC firm **1** round

[Guillermo Rauch](https://millionrounds.com/fund/guillermo-rauch) VC firm **1** round

[Shrug Capital](https://millionrounds.com/fund/shrug-capital) VC firm **1** round

[Four Cities Capital](https://millionrounds.com/fund/four-cities-capital) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=windsor-io).

## Quick answers about Windsor.io

### Who invested in Windsor.io?

Windsor.io's investors include Y Combinator, Citibank, Precursor Ventures, Afore Capital and Guillermo Rauch, and 2 more on record.

### How much has Windsor.io raised?

Windsor.io has raised $2.6M across 1 round since 2021.

### When did Windsor.io last raise?

Windsor.io's most recent round was a Seed of $2.6M in Oct 2021.

### What was Windsor.io's biggest round?

Its most recent round, $2.6M in Oct 2021, is also its largest on record.

### Who backed Windsor.io first?

Windsor.io's first round on record, in Oct 2021, was backed by Y Combinator, Citibank and Precursor Ventures and 4 others.

### What stage is Windsor.io at?

Windsor.io's latest named round is a Seed, in Oct 2021.

### Where is Windsor.io based?

Windsor.io is based in the United States.

## Companies like Windsor.io

In the same sector, and raised in the last eighteen months.

[**SpaceX** $42B · Oct 2026](https://millionrounds.com/company/spacex)[**xPay** $1.5M · Oct 2026](https://millionrounds.com/company/xpay)[**Albert Invent** $20M · Oct 2026](https://millionrounds.com/company/albert-invent)[**FORT Robotics** $39M · Oct 2026](https://millionrounds.com/company/fort-robotics)[**Pika** $216M · Oct 2026](https://millionrounds.com/company/pika)[**Vertical Semiconductor** $84M · Oct 2026](https://millionrounds.com/company/vertical-semiconductor)

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