Verified Nov 2026
Electronics & Software
·
Madison, Wisconsin
·
Since 1977
Therma-Stor is a manufacturer of dehumidifiers, heat recovery water heaters, and restoration equipment, headquartered in Madison, Wisconsin, United States. Founded in 1977, it has an estimated workforce of 100 to 200 employees and an estimated revenue of $10 to 50 million. The company is a subsidiary of Madison Industries and is privately held. Its products serve the automotive, electronics, and industrial equipment industries. In September 2025, the company published a document on decarbonizing high-rise buildings.
Therma-Stor at a glance
Revenue
$10-50M
Est. band
Employees
100-200
Founded
1977
Headquarters
Madison, Wisconsin
Import activity
535
Industries
Automotive
Electronics
Industrial Equipment
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
535
Named foreign suppliers
50
Top origins
China · Hong Kong S.A.R. · Taiwan · South Korea
Shared foreign counterparties do not establish that these companies buy from Therma-Stor.
What this tells a buyer
No customs data is available for this company, and its most recent public development is a September 4, 2025 publication describing its approach to decarbonizing high-rise buildings.
Its record lists humidity control, dehumidification, industrial dehumidifiers, humidity sensors, and air scrubbing among its capabilities, with no third-party certifications reported.
The company is a subsidiary of Madison Industries, operates with an estimated 100 to 200 employees, and reports no named customers in the record.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
Overview
Therma-Stor is a manufacturer of dehumidifiers, heat recovery water heaters, and restoration equipment, headquartered in Madison, Wisconsin, United States. Founded in 1977, it has an estimated workforce of 100 to 200 employees and an estimated revenue of $10 to 50 million. The company is a subsidiary of Madison Industries and is privately held. Its products serve the automotive, electronics, and industrial equipment industries. In September 2025, the company published a document on decarbonizing high-rise buildings.
At a glance
Attribute | Detail |
|---|---|
Founded | 1977 |
Headquarters | Madison, Wisconsin |
Employees | 100-200 |
Revenue | $10-50M (estimated) |
Primary capability | Electronics & Software |
What Therma-Stor makes
Its record lists humidity control, dehumidification, industrial dehumidifiers, humidity sensors, and air scrubbing among its capabilities, with no third-party certifications reported.
Trade and customs footprint
No customs data is available for this company, and its most recent public development is a September 4, 2025 publication describing its approach to decarbonizing high-rise buildings. US customs bill-of-lading records list 535 inbound shipments across 50 foreign suppliers, with top origins including China · Hong Kong S.A.R. · Taiwan · South Korea.
Latest developments
2025-09-04 — At ThermaStor, we're focused on making decarbonization better, faster, and cheaper—and we’re excited to share a flat sheet that highlights how we’re doing just that in high-rise buildings. | ThermaStor Solutions (linkedin.com)
Facilities
Therma-Stor is headquartered in Madison, Wisconsin. Public sources also reference these locations:
Madison, Wisconsin — thermastor.com
Company details
The company is a subsidiary of Madison Industries, operates with an estimated 100 to 200 employees, and reports no named customers in the record. Therma-Stor was founded in 1977, has an estimated 100-200 employees, and is headquartered in Madison, Wisconsin.
Frequently asked questions
What does Therma-Stor make?
Therma-Stor is a manufacturer of dehumidifiers, heat recovery water heaters, and restoration equipment, headquartered in Madison, Wisconsin, United States. Founded in 1977, it has an estimated workforce of 100 to 200 employees and an estimated revenue of $10 to 50 million. The company is a subsidiary of Madison Industries and is privately held. Its products serve the automotive, electronics, and industrial equipment industries. In September 2025, the company published a document on decarbonizing high-rise buildings.
Where is Therma-Stor headquartered?
Therma-Stor is headquartered in Madison, Wisconsin (4201 Lien Rd, Madison, Wisconsin, 53704).
When was Therma-Stor founded?
Therma-Stor was founded in 1977.
How big is Therma-Stor?
Therma-Stor has an estimated 100-200 employees, with revenue in the $10-50M range (estimated).
Does Therma-Stor import from overseas suppliers?
US customs bill-of-lading records show 535 inbound shipments for Therma-Stor, with top origins including China · Hong Kong S.A.R. · Taiwan · South Korea.
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Last verified Nov 2026. Is this your company? Request a correction.
Location & contact
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