Where is Aira headquartered?

Aira is headquartered in Stockholm, Sweden.

How much funding has Aira raised?

Aira has raised €644.5M (across 5 rounds · last 11 Aug 2025).

What was Aira's latest funding round?

Aira's most recent disclosed round was a Series C round of €150.0M, announced 11 August 2025.

Who has invested in Aira?

Investors in Aira include Altor, Kallskär, Kinnevik, Lingotto, Temasek.

The Index airahome.com

Company · SE · Stockholm

Aira

Swedish clean energy-tech company providing residential heat pumps and a home energy system (inverter, battery). Founded 2022; backed by Vargas Holding.

Raised: EUR 644.5M
Last round: Series C+ · 11 Aug 2025
Momentum: Quiet
Events: 5

Updated 29 Jul 2026 · Verified 29 Jul 2026

Capital

5 rounds · 2023–2025

2022

Founded

2025

Series C+

€150.0M

18 Oct 2023
Equity
€86.5M
Cumulative €86.5M
16 Jan 2024 · +3 mo
Series B
€145.0M
Cumulative €231.5M
12 Jun 2024 · +5 mo
Debt
€200.0M
Cumulative €431.5M
16 Oct 2024 · +4 mo
Series B
€63.0M
Cumulative €494.5M
11 Aug 2025 · +10 mo
Series C+
€150.0M
Cumulative €644.5M

Backers

5 investors

Amounts in EUR, converted at the ECB rate on the event date. Every figure links to its source.

Activity

5 events

Funding11 Aug 2025EUR 150.0M
Aira raised EUR 150.0M in Series C.
▸Source: company.airahome.com
Read at company.airahome.com
Funding16 Oct 2024EUR 63.0M
Aira added EUR 63M to its Series B from existing investors Temasek, Statkraft Ventures, Kinnevik and Altor.
▸Source: airahome.com
Read at airahome.com
Funding12 Jun 2024EUR 200.0M
Aira secured a EUR 200M debt-financing facility from BNP Paribas to finance heat-pump installations in Germany.
▸Source: techarenan.news
Read at techarenan.news
Funding16 Jan 2024EUR 145.0M
Aira raised an upsized EUR 145M Series B co-led by Altor, Kinnevik and Temasek to accelerate residential-heating electrification in Europe.
▸Source: airahome.com
Read at airahome.com
Funding18 Oct 2023EUR 86.5M
Aira raised SEK 1B in equity funding from climate- and innovation-focused investors including Altor, Collaborative Fund, Creades, Kinnevik, and Lingotto.
▸Source: airahome.com
Read at airahome.com

People

1 person

Peter Prem
CEO

Questions

6 answers

What does Aira do?: Swedish clean energy-tech company providing residential heat pumps and a home energy system (inverter, battery). Founded 2022; backed by Vargas Holding.
When was Aira founded?: Aira was founded in 2022.
Where is Aira headquartered?: Aira is headquartered in Stockholm, Sweden.
How much funding has Aira raised?: Aira has raised €644.5M (across 5 rounds · last 11 Aug 2025).
What was Aira's latest funding round?: Aira's most recent disclosed round was a Series C round of €150.0M, announced 11 August 2025.
Who has invested in Aira?: Investors in Aira include Altor, Kallskär, Kinnevik, Lingotto, Temasek.

The Index

Loading the Index.

The Index airahome.com

Company · SE · Stockholm

Aira

Swedish clean energy-tech company providing residential heat pumps and a home energy system (inverter, battery). Founded 2022; backed by Vargas Holding.

Raised: EUR 644.5M
Last round: Series C+ · 11 Aug 2025
Momentum: Quiet
Events: 5

Updated 29 Jul 2026 · Verified 29 Jul 2026

Capital

5 rounds · 2023–2025

2022

Founded

2025

Series C+

€150.0M

18 Oct 2023
Equity
€86.5M
Cumulative €86.5M
16 Jan 2024 · +3 mo
Series B
€145.0M
Cumulative €231.5M
12 Jun 2024 · +5 mo
Debt
€200.0M
Cumulative €431.5M
16 Oct 2024 · +4 mo
Series B
€63.0M
Cumulative €494.5M
11 Aug 2025 · +10 mo
Series C+
€150.0M
Cumulative €644.5M

Backers

5 investors

Amounts in EUR, converted at the ECB rate on the event date. Every figure links to its source.

Activity

5 events

Funding11 Aug 2025EUR 150.0M
Aira raised EUR 150.0M in Series C.
▸Source: company.airahome.com
Read at company.airahome.com
Funding16 Oct 2024EUR 63.0M
Aira added EUR 63M to its Series B from existing investors Temasek, Statkraft Ventures, Kinnevik and Altor.
▸Source: airahome.com
Read at airahome.com
Funding12 Jun 2024EUR 200.0M
Aira secured a EUR 200M debt-financing facility from BNP Paribas to finance heat-pump installations in Germany.
▸Source: techarenan.news
Read at techarenan.news
Funding16 Jan 2024EUR 145.0M
Aira raised an upsized EUR 145M Series B co-led by Altor, Kinnevik and Temasek to accelerate residential-heating electrification in Europe.
▸Source: airahome.com
Read at airahome.com
Funding18 Oct 2023EUR 86.5M
Aira raised SEK 1B in equity funding from climate- and innovation-focused investors including Altor, Collaborative Fund, Creades, Kinnevik, and Lingotto.
▸Source: airahome.com
Read at airahome.com

People

1 person

Peter Prem
CEO

Questions

6 answers

What does Aira do?: Swedish clean energy-tech company providing residential heat pumps and a home energy system (inverter, battery). Founded 2022; backed by Vargas Holding.
When was Aira founded?: Aira was founded in 2022.
Where is Aira headquartered?: Aira is headquartered in Stockholm, Sweden.
How much funding has Aira raised?: Aira has raised €644.5M (across 5 rounds · last 11 Aug 2025).
What was Aira's latest funding round?: Aira's most recent disclosed round was a Series C round of €150.0M, announced 11 August 2025.
Who has invested in Aira?: Investors in Aira include Altor, Kallskär, Kinnevik, Lingotto, Temasek.

Backers

One issue a week. Tuesday at 06:00 CET.

Backers

One issue a week. Tuesday at 06:00 CET.