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Altor

Investor profile

Investment firmVenture capital

Altor has backed 4 European tech companies across 7 funding rounds between 2022 and 2025, joining rounds totalling €1.9B. Most active in Energy and Cleantech. Data as of 4 Nov 2026.

Also recorded as: Altor Partner

Deals
7
distinct rounds
Companies
4
backed
Active span
2022–2025
4 yrs
Total round €
€1.9B
sum of rounds joined

Deals by year

distinct rounds / year
Altor — deals by year — interactive chart.
Data table
Altor — deals by year
20222
20233
20241
20251

Top sectors

by deals
Altor — top sectors — interactive chart.
Data table
Altor — top sectors
Energy3
Cleantech2
AI1
Software1

Stages

by deals
Altor — stages — interactive chart.
Data table
Altor — stages
Other6
Series B1

Countries

by deals
Altor — countries — interactive chart.
Data table
Altor — countries
Sweden5
Denmark1
Finland1

Co-investment network

shared rounds
Co-investment network — interactive chart.
Altor — 7 dealsAltorKinnevik — 5 shared deals · click to openKinnevikTemasek — 3 shared deals · click to openTemasekAMF — 2 shared deals · click to openAMFGIC — 2 shared deals · click to openGICHitachi Energy — 2 shared deals · click to openHitachi EnergyLingotto — 2 shared deals · click to openLingottoSchaeffler — 2 shared deals · click to openSchaefflerAndra AP – fonden — 1 shared deals · click to openAndra AP – fondenCollaborative Fund — 1 shared deals · click to openCollaborative FundCreades — 1 shared deals · click to openCreadesCristina Stenbeck — 1 shared deals · click to openCristina StenbeckExport and Investment Fund of Denmark — 1 shared deals · click to openExport and Investment Fund of DenmarkFAM — 1 shared deals · click to openFAMHy24 — 1 shared deals · click to openHy24IMAS Foundation — 1 shared deals · click to openIMAS FoundationJust Climate — 1 shared deals · click to openJust ClimateKallskär1 — 1 shared deals · click to openKallskär1Kobe Steel — 1 shared deals · click to openKobe Steel

Hover a node for shared-deal counts; click a co-investor to open its profile.

Best viewed on a larger screen.

Frequent co-investors

shared rounds

Portfolio

top 30 by total round €
CompanyCountryRoundsTotal €
Stegra (H2 Green Steel)Sweden2€1.6B
AiraSweden3€299M
AtobiDenmark1€3.8M
Silo.AIFinland1€0

Biggest deals

top 10 by amount
CompanyStageAmountDate
Stegra (H2 Green Steel)Other€1.5B2023-09
AiraOther€150M2025-08
AiraOther€86M2023-10
Stegra (H2 Green Steel)Series B€70M2022-10
AiraOther€63M2024-10
AtobiOther€3.8M2023-07
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