Verified Nov 2026
Castings & Forgings
·
Mountain Brook, Alabama
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Since 1921
McWane is a family-owned manufacturer headquartered in Mountain Brook, Alabama, founded in 1921. It employs an estimated 5,000 to 10,000 people and reports revenue in the $1 to 5 billion band. The company makes castings and forgings, ductile iron pipe, valves, fire hydrants, and plumbing products, serving the water infrastructure, construction, automotive, medical, renewable energy, and electric vehicle sectors. In 2025, its Clow Valve unit opened an $80 million foundry expansion.
McWane at a glance
Revenue
$1-5B
Est. band
Employees
5,000-10,000
Founded
1921
Headquarters
Mountain Brook, Alabama
Certifications
ISO 9001
Import activity
5533
Industries
Automotive
Electric Vehicles
Construction
Medical
Plumbing & Hardware
Renewable Energy
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
5533
Named foreign suppliers
50
Top origins
South Korea · India · Sri Lanka · Singapore
Shared foreign counterparties do not establish that these companies buy from McWane.
What this tells a buyer
McWane's recent public activity includes a 2025 Clow Valve $80 million foundry expansion and an August 2025 regional water expansion involving McWane Ductile, with further developments in 2026.
The company holds ISO 9001 certification and produces valves and castings and forgings, with facilities listed in Calera, Alabama, Coshocton, Ohio, and Abu Dhabi, UAE.
McWane is privately held, and its estimated size places it among the larger privately owned manufacturers in the United States.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
STABILITY SIGNALS
Established & active
105 years in operation (founded 1921).
Holds ISO 9001 certification(s) per public sources.
Overview
McWane is a family-owned manufacturer headquartered in Mountain Brook, Alabama, founded in 1921. It employs an estimated 5,000 to 10,000 people and reports revenue in the $1 to 5 billion band. The company makes castings and forgings, ductile iron pipe, valves, fire hydrants, and plumbing products, serving the water infrastructure, construction, automotive, medical, renewable energy, and electric vehicle sectors. In 2025, its Clow Valve unit opened an $80 million foundry expansion.
At a glance
Attribute | Detail |
|---|---|
Founded | 1921 |
Headquarters | Mountain Brook, Alabama |
Employees | 5,000-10,000 |
Revenue | $1-5B (estimated) |
Primary capability | Castings & Forgings |
Certifications | ISO 9001 |
What McWane makes
The company holds ISO 9001 certification and produces valves and castings and forgings, with facilities listed in Calera, Alabama, Coshocton, Ohio, and Abu Dhabi, UAE.
Products and capabilities described on the company's own site include Valve (source: mcwane.com).
Certifications
McWane is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
ISO 9001 — mcwane.com
Trade and customs footprint
McWane's recent public activity includes a 2025 Clow Valve $80 million foundry expansion and an August 2025 regional water expansion involving McWane Ductile, with further developments in 2026. US customs bill-of-lading records list 5533 inbound shipments across 50 foreign suppliers, with top origins including South Korea · India · Sri Lanka · Singapore.
Latest developments
2026-10-15 — McWane Plant & Industrial Now Shipping Orders from its New Glass Lining Facility (prweb.com)
2026-08-03 — McWane Ductile expands resilient infrastructure solutions through strategic collaboration with Kubota - McWane Ductile - Iron Strong (mcwaneductile.com)
2026-06-11 — McWane President Will McWane cuts ribbon on Junior Achievement McWane Economic Education Center (mcwane.com)
2025-08-25 — Clow Valve opens $80 million foundry expansion (mcwane.com)
2025-08-20 — McWane Ductile Joins Forces for Major Regional Water Expansion (mcwane.com)
2025-04-15 — Tyler Union opens $25M large diameter foundry expansion (mcwane.com)
Facilities
McWane is headquartered in Mountain Brook, Alabama. Public sources also reference these locations:
Calera, Alabama — prweb.com
Coshocton, Ohio — mcwane.com
Abu Dhabi, UAE — mcwane.com
Company details
McWane is privately held, and its estimated size places it among the larger privately owned manufacturers in the United States. McWane was founded in 1921, has an estimated 5,000-10,000 employees, and is headquartered in Mountain Brook, Alabama. On the LightSource stability read it is rated "Established & active": 105 years in operation (founded 1921). Holds ISO 9001 certification(s) per public sources.
Frequently asked questions
What does McWane make?
McWane is a family-owned manufacturer headquartered in Mountain Brook, Alabama, founded in 1921. It employs an estimated 5,000 to 10,000 people and reports revenue in the $1 to 5 billion band. The company makes castings and forgings, ductile iron pipe, valves, fire hydrants, and plumbing products, serving the water infrastructure, construction, automotive, medical, renewable energy, and electric vehicle sectors. In 2025, its Clow Valve unit opened an $80 million foundry expansion.
Where is McWane headquartered?
McWane is headquartered in Mountain Brook, Alabama (2900 U.S. 280, Mountain Brook, Alabama, 35223).
When was McWane founded?
McWane was founded in 1921.
How big is McWane?
McWane has an estimated 5,000-10,000 employees, with revenue in the $1-5B range (estimated).
What certifications does McWane hold?
McWane lists ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
Does McWane import from overseas suppliers?
US customs bill-of-lading records show 5533 inbound shipments for McWane, with top origins including South Korea · India · Sri Lanka · Singapore.
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Last verified Nov 2026. Is this your company? Request a correction.
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