Who invested in TheStorage

2 rounds we have observed, with the 5 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

CleantechEnergyManufacturing

Raised 6 months ago

Funding summaryUpdated 26 Oct 2026

$5.4Mraised across 2 rounds since 2025, from 3 sources

$1.2MSeed$4.2MSeed

Latest round: Seed, $4.2MApr 2026
Led by: Voima Ventures
Step-upi: 3.5×
Investors: 5 (1 led)

See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2026

$1.2MSeed$4.2MSeed

First round: Seed, $1.2M
Biggest round: $4.2M
Between rounds: 15 months

The rounds

Apr 2026
Seed$4.2M3 new2 returning
Reported by Superhero Capital and 1 other
Feb 2025
Seed$1.2M2 new
- Business Finland
- Superhero Capital
Source recorded

Founders and team

From TheStorage's own website: 10 on the team.

Timo SiukkolaCEO
Joona SinisaloChief Mechanical Engineer
Olli HannulaChief Technical Officer
Hannu-Pekka HyppänenHead of Product
Ville PenttiHead of Business Development
Esko KuljuProject Manager
Niina OjalaMarketing & Communication Lead
Oskari MäkiDesign Engineer
Otto PuhakkaDevelopment Engineer
Riku NurminenPlant Performance Development Manager

Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

Seed2025Seed2026Business Finland

Superhero Capital

Voima VenturesL

2C VenturesMomentum Partners

Everyone who backed them

Business FinlandAccelerator2rounds

Superhero CapitalVC firm2rounds

Voima VenturesVC firm1round, led 1

2C VenturesVC firm1round

Momentum PartnersAdvisor1round

Missing a round, or an investor who was in one? Tell us.

Quick answers about TheStorage

Who invested in TheStorage?

TheStorage's investors include Business Finland, Superhero Capital, Voima Ventures, 2C Ventures and Momentum Partners. Voima Ventures led its latest round.