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Electronics & Software
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Armstrong International – Intelligent Solutions in Steam, Air and Hot Water
Verified Nov 2026
Electronics & Software
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Three Rivers, Michigan
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Since 1900
Armstrong International is an engineering and manufacturing company headquartered in Three Rivers, Michigan, founded in 1900. It designs, manufactures, and distributes thermal utility equipment for steam, air, and hot water systems, and serves the automotive, construction, medical, renewable energy, and other industries. The company is family-owned and reports 1,000 to 5,000 employees. Its recent work includes doubling heat pump production capacity at its Herstal, Belgium facility, as announced in November 2025.
Armstrong International – Intelligent Solutions in Steam, Air and Hot Water at a glance
Revenue
$250-500M
Est. band
Employees
1,000-5,000
Founded
1900
Headquarters
Three Rivers, Michigan
Certifications
ISO 9001
Industries
Automotive
Electric Vehicles
Construction
Medical
Plumbing & Hardware
Renewable Energy
STABILITY SIGNALS
Established & active
126 years in operation (founded 1900).
Holds ISO 9001 certification(s) per public sources.
Overview
Armstrong International is an engineering and manufacturing company headquartered in Three Rivers, Michigan, founded in 1900. It designs, manufactures, and distributes thermal utility equipment for steam, air, and hot water systems, and serves the automotive, construction, medical, renewable energy, and other industries. The company is family-owned and reports 1,000 to 5,000 employees. Its recent work includes doubling heat pump production capacity at its Herstal, Belgium facility, as announced in November 2025.
At a glance
Attribute | Detail |
|---|---|
Founded | 1900 |
Headquarters | Three Rivers, Michigan |
Employees | 1,000-5,000 |
Revenue | $250-500M (estimated) |
Primary capability | Electronics & Software |
Certifications | ISO 9001 |
What Armstrong International – Intelligent Solutions in Steam, Air and Hot Water makes
The company's product range includes pumps, valves, connectors, and emissions-related equipment, and it holds ISO 9001 certification.
Products and capabilities described on the company's own site include Pump, Emissions, Assembly, Connector, Valve, Machining (source: armstronginternational.com).
Certifications
Armstrong International – Intelligent Solutions in Steam, Air and Hot Water is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
ISO 9001 — armstronginternational.com
Latest developments
2026-10-15 — Press Release Archives | Armstrong | Americas (armstronginternational.com)
2026-08-18 — Armstrong International – India Manufactures and Delivers 100th Industrial Heat Pump | Armstrong | Americas (armstronginternational.com)
2026-06-08 — Bartos Industries Announces Partnership with Armstrong International - Bartos Industries (bartosindustries.com)
2026-04-16 — Crise énergétique : Armstrong International décarbone son site de fabrication de pompes à chaleur industrielles de 7.000 m² grâce à la géothermie | Armstrong | Americas (armstronginternational.com)
2025-11-17 — Armstrong International to Double Heat Pump Production Capacity in Herstal, Belgium | Armstrong | Americas (armstronginternational.com)
2025-09-18 — Strengthening Michigan’s Clean Energy Future: DOE + Armstrong International – Intelligent Solutions in Steam, Air and Hot Water | Phaedra Wainaina (linkedin.com)
Facilities
Armstrong International – Intelligent Solutions in Steam, Air and Hot Water is headquartered in Three Rivers, Michigan. Public sources also reference these locations:
Herstal, Belgium — armstronginternational.com
Company details
The company is family-owned, reports an estimated annual revenue band of $250 to 500 million, and its public materials describe operations in more than 100 countries. Armstrong International – Intelligent Solutions in Steam, Air and Hot Water was founded in 1900, has an estimated 1,000-5,000 employees, and is headquartered in Three Rivers, Michigan. On the LightSource stability read it is rated "Established & active": 126 years in operation (founded 1900). Holds ISO 9001 certification(s) per public sources.
Frequently asked questions
What does Armstrong International – Intelligent Solutions in Steam, Air and Hot Water make?
Armstrong International is an engineering and manufacturing company headquartered in Three Rivers, Michigan, founded in 1900. It designs, manufactures, and distributes thermal utility equipment for steam, air, and hot water systems, and serves the automotive, construction, medical, renewable energy, and other industries. The company is family-owned and reports 1,000 to 5,000 employees. Its recent work includes doubling heat pump production capacity at its Herstal, Belgium facility, as announced in November 2025.
Where is Armstrong International – Intelligent Solutions in Steam, Air and Hot Water headquartered?
Armstrong International – Intelligent Solutions in Steam, Air and Hot Water is headquartered in Three Rivers, Michigan (816 Maple St, Three Rivers, Michigan, 49093-2345).
When was Armstrong International – Intelligent Solutions in Steam, Air and Hot Water founded?
Armstrong International – Intelligent Solutions in Steam, Air and Hot Water was founded in 1900.
How big is Armstrong International – Intelligent Solutions in Steam, Air and Hot Water?
Armstrong International – Intelligent Solutions in Steam, Air and Hot Water has an estimated 1,000-5,000 employees, with revenue in the $250-500M range (estimated).
What certifications does Armstrong International – Intelligent Solutions in Steam, Air and Hot Water hold?
Armstrong International – Intelligent Solutions in Steam, Air and Hot Water lists ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
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Last verified Nov 2026. Is this your company? Request a correction.
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