Company
Airthium
Cheaper, Cleaner Heat for Factories.
- Status
- Operatingas of 2026-09-20
- Business model
- B2B
- Employees
- Our co-founders work alongside 13 engineers and PhDsSource (opens in a new tab)
- Customers
- factories
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Record updated 28 September 2026
About
We're developing containerized heat pumps for industrial process heat at 100–250°C. Our hybrid system pairs efficient electric heat with your existing gas boiler, choosing the lowest-cost heat source as energy prices change.
Funding snapshot
- Total raised
- $800KSEC form D sum, as of 2026-09-28Source (opens in a new tab)
- Latest round
- Round, $300K2021-04-30
Funding rounds
- Round, 2021
- $300K2021-04-30, SEC form D sold, 3 investors
- Round, 2017
- $500K2017-06-14, SEC form D sold, 10 investors
Products
- Hardware
- containerized heat pumps
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