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Kallskär AB

Kallskär AB

Stockholmvargasholding.com

Overview

Kallskär AB is a Swedish investment vehicle associated with Vargas Holding, an impact investor and company builder focused on accelerating decarbonization in hard-to-abate industries. Its portfolio of founded and scaled companies includes ventures in batteries (Northvolt), green steel (Stegra), energy storage (Polarium), and home energy-tech (Aira).

Year Founded

2011

Portfolio Companies

5

Investments

Kallskär AB investments
CompanyDateStageLead
StegraJun 2026Growth Equity-
FreePowerAug 2025Early FundingLead
AiraAug 2025VC Round-
PolariumOct 2024Corporate Funding-
SyreMay 2024Series A-

Sector & Stage Mix

Industry, funding stage, and valuation band breakdowns.

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SeedSeries ASeries BGrowth

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Investment Activity

Yearly cadence, pace, and funding raised over time.

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2021
2022
2023
2024
2025
2026

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FAQ

Firmographic Details

HeadquartersStockholm
Year Founded2011

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