Aira

Stockholm, Sweden · Founded 2021 · Privately Held (backing)

Developer of clean energy systems designed to reduce carbon dioxide emissions from residential heating. Aira is based in Stockholm, Sweden and was founded in 2021. It was valued at $532 million at its Series B in Jan 2024, the last priced event on record. It has raised $659 million across 5 recorded rounds; the latest was a $175 million early-stage round in Aug 2025.

PMV mark · valuation
$532.0M
Oct 2026
Priced at
its Series B
Jan 2024
Total raised
$658.8M
Last round
Early Stage VC
Aug 2025

Who backs Aira?

11 investors
InvestorType
Collaborative FundOther
Temasek HoldingsOther
London & Partners.Other
NestaOther
LingottoHedge fund
Statkraft Ventures—
Altor Equity PartnersPE / buyout
Creades—
Grow London—
Kinnevik—
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Aira investors

11 investors are on record for Aira, including Collaborative Fund, Temasek Holdings, London & Partners. and Nesta. The early-stage round in Aug 2025 drew 4 investors.

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