# Mainframe funding: rounds and investors

> Mainframe has raised $5.5M across 1 round since 2024. Investors include Lachy Groom, Peter Boyce (Stellation) and Scott Belsky. Every round with its source.

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

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

# Who invested in *Mainframe*

One round we have observed, with the 6 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.

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Funding summary Updated 5 Nov 2026

**$5.5M** raised across 1 round since 2024, from 2 sources

- **Latest round:** Seed, $5.5M Dec 2024
- **Led by:** Lachy Groom and Peter Boyce (Stellation)
- **Investors:** 6 (2 led)

See who backed them

## The rounds

- **Dec 2024** Seed **$5.5M** [Lachy Groom](https://millionrounds.com/fund/lachy-groom) Lead [Peter Boyce (Stellation)](https://millionrounds.com/fund/peter-boyce-stellation) Lead [Scott Belsky](https://millionrounds.com/fund/scott-belsky) [Weekend Fund](https://millionrounds.com/fund/weekend-fund) [Kothari, Akshay](https://millionrounds.com/fund/kothari-akshay) [Stellation](https://millionrounds.com/fund/stellation) Reported by AlleyWatch and 1 other

## Everyone who backed them

[Lachy Groom](https://millionrounds.com/fund/lachy-groom) Angel **1** round, led 1

[Peter Boyce (Stellation)](https://millionrounds.com/fund/peter-boyce-stellation) VC firm **1** round, led 1

[Scott Belsky](https://millionrounds.com/fund/scott-belsky) Angel **1** round

[Weekend Fund](https://millionrounds.com/fund/weekend-fund) VC firm **1** round

[Kothari, Akshay](https://millionrounds.com/fund/kothari-akshay) VC firm **1** round

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

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

## Also claim to have backed them

This firm lists Mainframe 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.

[Concentric](https://millionrounds.com/fund/concentric) VC firm Per its own site

## Quick answers about Mainframe

### Who invested in Mainframe?

Mainframe's investors include Lachy Groom, Peter Boyce (Stellation), Scott Belsky, Weekend Fund and Kothari, Akshay, and 1 more on record. Lachy Groom led its latest round.

### How much has Mainframe raised?

Mainframe has raised $5.5M across 1 round since 2024.

### When did Mainframe last raise?

Mainframe's most recent round was a Seed of $5.5M in Dec 2024, led by Lachy Groom.

### What was Mainframe's biggest round?

Its most recent round, $5.5M in Dec 2024, is also its largest on record.

### Who backed Mainframe first?

Mainframe's first round on record, in Dec 2024, was backed by Lachy Groom, Peter Boyce (Stellation) and Scott Belsky and 3 others.

### What stage is Mainframe at?

Mainframe's latest named round is a Seed, in Dec 2024.

### Where is Mainframe based?

Mainframe is based in the United States.

### Who led Mainframe's rounds?

Lachy Groom led the Seed in 2024.

## Companies like Mainframe

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

[**Journify** $12M · Nov 2026](https://millionrounds.com/company/journify)[**Nooks** $543M · Nov 2026](https://millionrounds.com/company/nooks)[**Laza Medical** $160M · Nov 2026](https://millionrounds.com/company/laza-medical)[**e2e** $8.0M · Nov 2026](https://millionrounds.com/company/e2e)[**Agrani Labs** $123M · Nov 2026](https://millionrounds.com/company/agrani-labs)[**Applied Compute** $580M · Nov 2026](https://millionrounds.com/company/applied-compute)

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