# Assembly OSM funding: rounds and investors

> Assembly OSM has raised $38M across 1 round since 2022. Investors include Bessemer Venture Partners, Gaingels and FJ Labs. Every round with its source.

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

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

# Who invested in *Assembly OSM*

One round we have observed, with the 5 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.

Construction

Funding summary Updated 26 Oct 2026

**$38M** raised across 1 round since 2022, from 1 source

- **Latest round:** Series A, $38M Jul 2022
- **Investors:** 5

See who backed them

## The rounds

- **Jul 2022** Series A **$38M** [Bessemer Venture Partners](https://millionrounds.com/fund/bessemer-venture-partners) [Gaingels](https://millionrounds.com/fund/gaingels) [FJ Labs](https://millionrounds.com/fund/fj-labs) [Karman Ventures](https://millionrounds.com/fund/karman-ventures) [Fifth Wall](https://millionrounds.com/fund/fifth-wall) Source recorded SEC filing: $64M sold, first sale Apr 2022

## Founders and team

From Assembly OSM's own website and the SEC filings it signed: 4 on the team.

- **Andrew Staniforth** Chief Executive Offiver i
- **Jason Blenker** CEO
- **Scott Beecham** VP, Business Development
- **Nate Eikelberg** Digital Systems Manager

On the board, as filed i *Kieran Mara* *Robert Stavis* *William Sharples*

## Everyone who backed them

[Bessemer Venture Partners](https://millionrounds.com/fund/bessemer-venture-partners) VC firm **1** round

[Gaingels](https://millionrounds.com/fund/gaingels) Private equity **1** round

[FJ Labs](https://millionrounds.com/fund/fj-labs) VC firm **1** round

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

[Fifth Wall](https://millionrounds.com/fund/fifth-wall) VC firm **1** round

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

## Also claim to have backed them

These 2 firms list Assembly OSM as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

[Manta Ray Ventures](https://millionrounds.com/fund/manta-ray-ventures) VC firm Per its own site

[Atento Capital](https://millionrounds.com/fund/atento-capital) VC firm Per its own site

## Quick answers about Assembly OSM

### Who invested in Assembly OSM?

Assembly OSM's investors include Bessemer Venture Partners, Gaingels, FJ Labs, Karman Ventures and Fifth Wall.

### How much has Assembly OSM raised?

Assembly OSM has raised $38M across 1 round since 2022.

### When did Assembly OSM last raise?

Assembly OSM's most recent round was a Series A of $38M in Jul 2022.

### What was Assembly OSM's biggest round?

Its most recent round, $38M in Jul 2022, is also its largest on record.

### Who backed Assembly OSM first?

Assembly OSM's first round on record, in Jul 2022, was backed by Bessemer Venture Partners, Gaingels and FJ Labs and 2 others.

### What stage is Assembly OSM at?

Assembly OSM's latest named round is a Series A, in Jul 2022.

### Where is Assembly OSM based?

Assembly OSM is based in the United States.

## Companies like Assembly OSM

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

[**xPay** $1.5M · Oct 2026](https://millionrounds.com/company/xpay)[**Pennsylvania American Water** $43M · Oct 2026](https://millionrounds.com/company/pennsylvania-american-water)[**Mach9** $46M · Oct 2026](https://millionrounds.com/company/mach9)[**Fireworks AI** $1.7B · Oct 2026](https://millionrounds.com/company/fireworks-ai)[**ASI** $325M · Oct 2026](https://millionrounds.com/company/asi)[**Fragment** $22M · Oct 2026](https://millionrounds.com/company/fragment)

## Find investors like these

Search every investor by what they have actually funded, then narrow to your stage and market. Free.

Open the investor searchOr these rounds in the app