# Basis Theory funding: rounds and investors

> Basis Theory has raised $33M across 1 round since 2025. Investors include Bessemer Venture Partners, BoxGroup and Costanoa Ventures.

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

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

# Who invested in *Basis Theory*

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.

Big Data & Analytics

Funding summary Updated 26 Oct 2026

**$33M** raised across 1 round since 2025, from 1 source

- **Latest round:** Series B, $33M Oct 2025
- **Investors:** 5

See who backed them

## The rounds

- **Oct 2025** Series B **$33M** [Bessemer Venture Partners](https://millionrounds.com/fund/bessemer-venture-partners) [BoxGroup](https://millionrounds.com/fund/boxgroup) [Costanoa Ventures](https://millionrounds.com/fund/costanoa-ventures) [Kindred Ventures](https://millionrounds.com/fund/kindred-ventures) [Stage 2 Capital](https://millionrounds.com/fund/stage-2-capital) Source recorded

## Everyone who backed them

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

[BoxGroup](https://millionrounds.com/fund/boxgroup) VC firm **1** round

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

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

[Stage 2 Capital](https://millionrounds.com/fund/stage-2-capital) VC firm **1** round

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

## Quick answers about Basis Theory

### Who invested in Basis Theory?

Basis Theory's investors include Bessemer Venture Partners, BoxGroup, Costanoa Ventures, Kindred Ventures and Stage 2 Capital.

### How much has Basis Theory raised?

Basis Theory has raised $33M across 1 round since 2025.

### When did Basis Theory last raise?

Basis Theory's most recent round was a Series B of $33M in Oct 2025.

### What was Basis Theory's biggest round?

Its most recent round, $33M in Oct 2025, is also its largest on record.

### Who backed Basis Theory first?

Basis Theory's first round on record, in Oct 2025, was backed by Bessemer Venture Partners, BoxGroup and Costanoa Ventures and 2 others.

### What stage is Basis Theory at?

Basis Theory's latest named round is a Series B, in Oct 2025.

### Where is Basis Theory based?

Basis Theory is based in the United States.

## Companies like Basis Theory

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

[**SpaceX** $42B · Oct 2026](https://millionrounds.com/company/spacex)[**STRIVE** $1.3B · Oct 2026](https://millionrounds.com/company/strive)[**Xona** $512M · Oct 2026](https://millionrounds.com/company/xona)[**DrizzleX** $9.1M · Oct 2026](https://millionrounds.com/company/drizzlex)[**Prism Data** $25M · Oct 2026](https://millionrounds.com/company/prism-data)[**Homa** $5.0M · Oct 2026](https://millionrounds.com/company/homa)

## 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