# Calculum funding: rounds and investors

> Calculum has raised $1.4M across 1 round since 2025. Investors include Revolution. Every round with its source.

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

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

# Who invested in *Calculum*

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.

Big Data & Analytics

Funding summary Updated 26 Oct 2026

**$1.4M** raised across 1 round since 2025, from 1 source

- **Latest round:** Seed, $1.4M Oct 2025
- **Investors:** 1

See who backed them

## The rounds

- **Oct 2025** Seed **$1.4M** [Revolution](https://millionrounds.com/fund/revolution) Source recorded SEC filing: $1.4M sold, first sale Oct 2025

## Founders and team

From Calculum's own website: 1 founder, 4 on the team.

**Oliver Belin** Co-Founder and CEO

- **Amir Cohen** Head of Data
- **Carlos Garcia de Vinuesa Gil** Head of Product
- **Eric Zager** Head of Global Business Development
- **Karel Krejcí** Head of Global Sales

## Everyone who backed them

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

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

## Also claim to have backed them

These 2 firms list Calculum 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.

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

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

## Quick answers about Calculum

### Who invested in Calculum?

Calculum's investors include Revolution.

### How much has Calculum raised?

Calculum has raised $1.4M across 1 round since 2025.

### When did Calculum last raise?

Calculum's most recent round was a Seed of $1.4M in Oct 2025.

### What was Calculum's biggest round?

Its most recent round, $1.4M in Oct 2025, is also its largest on record.

### Who backed Calculum first?

Calculum's first round on record, in Oct 2025, was backed by Revolution.

### What stage is Calculum at?

Calculum's latest named round is a Seed, in Oct 2025.

### Where is Calculum based?

Calculum is based in the United States.

## Companies like Calculum

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)

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