# OneTriangle funding: rounds and investors

> OneTriangle has raised $500K across 1 round since 2026. Investors include Y Combinator. Every round with its source.

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

United States · [Pre-seed startup](https://millionrounds.com/companies)

# Who invested in *OneTriangle*

One round we have observed, with the one investor 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

Raised 2 months ago

Funding summary Updated 26 Oct 2026

**$500K** raised across 1 round since 2026, from 1 source

- **Latest round:** Pre-seed, $500K Sept 2026
- **Investors:** 1

See who backed them

## The rounds

- **Sept 2026** Pre-seed **$500K** [Y Combinator](https://millionrounds.com/fund/y-combinator) Source recorded

## Everyone who backed them

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

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

## Quick answers about OneTriangle

### Who invested in OneTriangle?

OneTriangle's investors include Y Combinator.

### How much has OneTriangle raised?

OneTriangle has raised $500K across 1 round since 2026.

### When did OneTriangle last raise?

OneTriangle's most recent round was a Pre-seed of $500K in Sept 2026.

### What was OneTriangle's biggest round?

Its most recent round, $500K in Sept 2026, is also its largest on record.

### Who backed OneTriangle first?

OneTriangle's first round on record, in Sept 2026, was backed by Y Combinator.

### What stage is OneTriangle at?

OneTriangle's latest named round is a Pre-seed, in Sept 2026.

### Where is OneTriangle based?

OneTriangle is based in the United States.

## Companies like OneTriangle

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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