FundedIQ
Energy

TheStorage: Funding, Investors & Team (Sep 2026)

Company develops sustainable and scalable large-scale thermal energy storage systems designed to meet the growing demands of fossil free industrial heat, district heating, and combined heat and power (CHP) applications, driving the transition to a more sustainable and reliable energy future.

www.thestorage.fi LinkedIn Tampere, Finland 1-10 employees
Clean Energy CleanTech Energy Energy Storage Renewable Energy B2B
Total raised
$5.3M
Rounds
2
Latest
Seed
Apr 2026

TheStorage has raised $5.3M across 2 funding rounds on record, the most recent a Seed of $4.2M announced in Apr 2026.

That round is below the $15M median round size for Energy companies tracked on FundedIQ over the last two years.

TheStorage Company Profile and Key Stats

Total funding raised
$5.3M
across 2 rounds on record
Funding rounds on record
2
Latest funding round
Seed
$4.2M in Apr 2026
Employees
1-10
reported band
Headquarters
Tampere, Finland

Latest funding round on record: Apr 2026.

TheStorage Funding Rounds

Date
Round
Amount
Seed
$4.2M
Pre-Seed
$1.1M

TheStorage raised $1.1M in a Pre-Seed announced in Oct 2024.

1.5 years later, a Seed of $4.2M was announced in Apr 2026.

TheStorage Founders and Leadership Team

Name
Role
Contact
Timo Siukkola
Founder
Locked

Contact details for the TheStorage team: 1 of 1 has an email address on file.

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TheStorage Funding Compared to Other Energy Startups

Segment
Companies
Median round
2,284
$15M
368
$5.2M
16,485
$3.1M

TheStorage's latest round of $4.2M is below the median round in Energy. Medians cover the last 24 months of disclosed rounds.

Funded Startups Like TheStorage in Energy and Tampere

Companies Similar to TheStorage

Willo is collaborating closely with businesses to transfer power from cables to the air. We concentrate on…

Pre-Seed $3.4M

Merus Power Dynamics is a clean technology company enabling companies to save energy and increase…

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Lahti Energia Oy is a company that generates and provides energy products.

Undisclosed round $177M

Steady Energy is focused on reducing carbon emissions in the energy-intensive heating sector, beginning with…

Series B $23.4M

Soletair Power, a Finnish startup established in 2016, specializes in Direct Air Capture and power-to-X…

Undisclosed round $1.1M

Polar Night Energy is a startup located in Tampere that creates and constructs heat storage units for…

Seed $8.2M

The Cactos smart energy storage system sets a new benchmark for energy storage systems. It ensures the…

Series A $28.5M

Keravan Energia is a energy provider that supplies electricity, natural gas, heat pumps, solar panels, and…

Undisclosed round $10.5M

Nelinor offers intelligent monitoring solutions for both renewable and non-renewable energy resources.

Undisclosed round $10k

Norsepower Oy is a Finnish company that specializes in creating renewable wind energy for the global maritime…

Series C $30.3M

P2X Solutions is a producer of green hydrogen and a pioneer in power-to-x technology.

Corporate Round $14.7M

Ilmatar is a project-oriented integrator in the field of renewable energy production with a strong focus on…

Undisclosed round $243M

TheStorage Funding FAQs

What does TheStorage do?

Company develops sustainable and scalable large-scale thermal energy storage systems designed to meet the growing demands of fossil free industrial heat, district heating, and combined heat and power (CHP) applications, driving the transition to a more sustainable and reliable energy future.

How much funding has TheStorage raised?

TheStorage has raised $5.3M across 2 rounds on record. The most recent is a Seed of $4.2M announced in Apr 2026.

When did TheStorage last raise funding?

TheStorage's most recent funding round on record is a Seed of $4.2M, announced in Apr 2026.

Who founded TheStorage?

FundedIQ lists Timo Siukkola (Founder) at TheStorage.

Where is TheStorage headquartered?

TheStorage is based in Tampere, Western Finland, Finland.

How many employees does TheStorage have?

TheStorage is in the 1-10 employee band.

How does TheStorage's funding compare to other Energy startups?

TheStorage's latest round of $4.2M is below the $15M median round size for Energy companies on FundedIQ across 2,284 tracked companies over the last two years.

About FundedIQ's TheStorage Funding Data

FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.

Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for TheStorage is left off this page rather than filled in.

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