# Thunderstone funding: rounds and investors

> Thunderstone has raised across 1 round since 2025. Investors include Founders Factory. Every round with its source.

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

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

# Who invested in *Thunderstone*

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 Services Engineering

Funding summary Updated 26 Oct 2026

**Undisclosed** raised across 1 round since 2025, from 1 source

- **Latest round:** Venture Apr 2025
- **Investors:** 1

See who backed them

## The rounds

- **Apr 2025** Venture **Amount undisclosed** [Founders Factory](https://millionrounds.com/fund/founder-s-factory) Source recorded SEC filing: $500K sold, first sale Feb 2025

## Everyone who backed them

[Founders Factory](https://millionrounds.com/fund/founder-s-factory) Accelerator **1** round

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

## Also claim to have backed them

These 2 firms list Thunderstone 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.

[Deep Science Ventures](https://millionrounds.com/fund/deep-science-ventures) Accelerator Per its own site

[Dangerous Ventures](https://millionrounds.com/fund/dangerous-ventures) VC firm Per its own site

## Quick answers about Thunderstone

### Who invested in Thunderstone?

Thunderstone's investors include Founders Factory.

### How much has Thunderstone raised?

Thunderstone has raised 1 round since 2025, none with a disclosed amount.

### When did Thunderstone last raise?

Thunderstone's most recent round was a Venture in Apr 2025.

### Who backed Thunderstone first?

Thunderstone's first round on record, in Apr 2025, was backed by Founders Factory.

### What stage is Thunderstone at?

Thunderstone's latest named round is a Venture, in Apr 2025.

### Where is Thunderstone based?

Thunderstone is based in the United States.

## Companies like Thunderstone

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

[**Mach9** $46M · Oct 2026](https://millionrounds.com/company/mach9)[**Rosie** $7.0M · Oct 2026](https://millionrounds.com/company/rosie)[**Chariot Claims** $23M · Oct 2026](https://millionrounds.com/company/chariot-claims)[**Applied Intuition** $640M · Oct 2026](https://millionrounds.com/company/applied-intuition)[**Stride** $16M · Oct 2026](https://millionrounds.com/company/stride)[**Aikido Technologies** $5.7M · Oct 2026](https://millionrounds.com/company/aikido-technologies)

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