# Mainstack funding: rounds and investors

> Mainstack has raised $120K across 1 round since 2023. Investors include Techstars. Every round with its source.

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

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

# Who invested in *Mainstack*

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.

Consumer Apps

Funding summary Updated 26 Oct 2026

**$120K** raised across 1 round since 2023, from 1 source

- **Latest round:** Pre-seed, $120K Apr 2023
- **Investors:** 1

See who backed them

## The rounds

- **Apr 2023** Pre-seed **$120K** [Techstars](https://millionrounds.com/fund/techstars) Source recorded

## Everyone who backed them

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

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

## Also claim to have backed them

These 2 firms list Mainstack 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.

[Midlothian Angel Network](https://millionrounds.com/fund/midlothian-angel-network) Angel network Per its own site

[Velocity Digital](https://millionrounds.com/fund/velocity-digital) Angel network Per its own site

## Quick answers about Mainstack

### Who invested in Mainstack?

Mainstack's investors include Techstars.

### How much has Mainstack raised?

Mainstack has raised $120K across 1 round since 2023.

### When did Mainstack last raise?

Mainstack's most recent round was a Pre-seed of $120K in Apr 2023.

### What was Mainstack's biggest round?

Its most recent round, $120K in Apr 2023, is also its largest on record.

### Who backed Mainstack first?

Mainstack's first round on record, in Apr 2023, was backed by Techstars.

### What stage is Mainstack at?

Mainstack's latest named round is a Pre-seed, in Apr 2023.

### Where is Mainstack based?

Mainstack is based in the United States.

## Companies like Mainstack

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

[**Punch** $11M · Oct 2026](https://millionrounds.com/company/punch)[**Albert** $57M · Oct 2026](https://millionrounds.com/company/albert)[**Welltory** $4.0M · Oct 2026](https://millionrounds.com/company/welltory)[**Arena** $401M · Oct 2026](https://millionrounds.com/company/arena)[**Bloom** $418M · Oct 2026](https://millionrounds.com/company/bloom)[**Clockout** $5.5M · Oct 2026](https://millionrounds.com/company/clockout)

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