# Prototyping.io funding: rounds and investors

> Prototyping.io has raised across 1 round since 2026. Investors include Y Combinator. Every round with its source.

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

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

# Who invested in *Prototyping.io*

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.

Advanced Manufacturing

Raised 5 months ago

Funding summary Updated 26 Oct 2026

**Undisclosed** raised across 1 round since 2026, from 1 source

- **Latest round:** Venture Jun 2026
- **Investors:** 1

See who backed them

## The rounds

- **Jun 2026** Venture **Amount undisclosed** [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=prototyping-io).

## Quick answers about Prototyping.io

### Who invested in Prototyping.io?

Prototyping.io's investors include Y Combinator.

### How much has Prototyping.io raised?

Prototyping.io has raised 1 round since 2026, none with a disclosed amount.

### When did Prototyping.io last raise?

Prototyping.io's most recent round was a Venture in Jun 2026.

### Who backed Prototyping.io first?

Prototyping.io's first round on record, in Jun 2026, was backed by Y Combinator.

### What stage is Prototyping.io at?

Prototyping.io's latest named round is a Venture, in Jun 2026.

### Where is Prototyping.io based?

Prototyping.io is based in the United States.

## Companies like Prototyping.io

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

[**Ultrasonium** Sept 2026](https://millionrounds.com/company/ultrasonium)[**BILT** $272M · Sept 2026](https://millionrounds.com/company/bilt)[**HopFlyt** $2.0M · Sept 2026](https://millionrounds.com/company/hopflyt)[**FluidForm Bio** $1.7M · Aug 2026](https://millionrounds.com/company/fluidform-bio)[**unspun** $42M · Aug 2026](https://millionrounds.com/company/unspun)[**Vntana** $5.3M · Jul 2026](https://millionrounds.com/company/vntana)

## Find investors like these

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