# BuildStream funding: rounds and investors

> BuildStream has raised $1.7M across 1 round since 2022. Investors include Y Combinator, Third Sphere and DFF Ventures (Dutch Founders Fund).

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

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

# Who invested in *BuildStream*

One round we have observed, with the 3 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.

Regtech

Y Combinator: S19

Funding summary Updated 26 Oct 2026

**$1.7M** raised across 1 round since 2022, from 1 source

- **Latest round:** Pre-seed, $1.7M Jan 2022
- **Investors:** 3

See who backed them

## The rounds

- **Jan 2022** Pre-seed **$1.7M** [Y Combinator](https://millionrounds.com/fund/y-combinator) [Third Sphere](https://millionrounds.com/fund/third-sphere) [DFF Ventures (Dutch Founders Fund)](https://millionrounds.com/fund/dff-ventures-dutch-founders-fund) Source recorded

## Funding filed with regulators

BuildStream filed one raise, $166K in all. Filings say how much was sold and to how many investors; they never name the investors.

- May 2021 **$166K** other of $1.1M offered Crowdfunding

## Everyone who backed them

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

[Third Sphere](https://millionrounds.com/fund/third-sphere) VC firm **1** round

[DFF Ventures (Dutch Founders Fund)](https://millionrounds.com/fund/dff-ventures-dutch-founders-fund) VC firm **1** round

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

## Also claim to have backed them

This firm lists BuildStream as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

[VentureSouq](https://millionrounds.com/fund/venturesouq) VC firm Seed, per its site

## Quick answers about BuildStream

### Who invested in BuildStream?

BuildStream's investors include Y Combinator, Third Sphere and DFF Ventures (Dutch Founders Fund).

### How much has BuildStream raised?

BuildStream has raised $1.7M across 1 round since 2022.

### When did BuildStream last raise?

BuildStream's most recent round was a Pre-seed of $1.7M in Jan 2022.

### What was BuildStream's biggest round?

Its most recent round, $1.7M in Jan 2022, is also its largest on record.

### Who backed BuildStream first?

BuildStream's first round on record, in Jan 2022, was backed by Y Combinator, Third Sphere and DFF Ventures (Dutch Founders Fund).

### What stage is BuildStream at?

BuildStream's latest named round is a Pre-seed, in Jan 2022.

### Where is BuildStream based?

BuildStream is based in the United States.

## Companies like BuildStream

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

[**MURAL** $67M · Oct 2026](https://millionrounds.com/company/mural)[**Brellium** $40M · Oct 2026](https://millionrounds.com/company/brellium)[**Frame** $8.8M · Sept 2026](https://millionrounds.com/company/frame)[**Gaia Dynamics** $8.5M · Sept 2026](https://millionrounds.com/company/gaia-dynamics)[**Blee** $21M · Sept 2026](https://millionrounds.com/company/blee)[**Blaze.tech** $12M · Aug 2026](https://millionrounds.com/company/blaze-tech)

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