Verified Oct 2026
Powertrain & Drivetrain
·
Mundelein, Illinois
·
Since 1925
MacLean-Fogg Company is a family-owned American manufacturer headquartered in Mundelein, Illinois. Founded in 1925, it employs 1,000-5,000 and generates $500M-1B in estimated annual revenue. The company operates 23 factories worldwide and serves automotive, appliance, construction, military, renewable energy, and industrial sectors.
MacLean-Fogg at a glance
Revenue
$500M-1B
Est. band
Employees
1,000-5,000
MFCS division · 3,500 group
Founded
1925
MacLean-Fogg Company · fourth generation
Headquarters
Mundelein, Illinois
1000 Allanson Rd · fastener plant
Ownership
Family-owned
MacLean family · private
Certifications
IATF 16949
Claimed · ISO 14001 · multi-site
Known customers
Ford
Ford Q1 certification
Industries
Automotive
Appliance
Construction
Military & Defense
Renewable Energy
Industrial Equipment
STABILITY SIGNALS
Active
A fourth-generation, family-owned manufacturer that marked 100 years in 2026 (founded 1925).
All 11 MacLean-Fogg facilities supplying Ford held Q1 supplier certification as of August 2026.
IATF 16949 and ISO 14001 certified quality systems reported at its component-solutions plants.
Overview
MacLean-Fogg Company is a family-owned American manufacturer headquartered in Mundelein, Illinois. Founded in 1925, it employs 1,000-5,000 and generates $500M-1B in estimated annual revenue. The company operates 23 factories worldwide and serves automotive, appliance, construction, military, renewable energy, and industrial sectors.
At a glance
Attribute | Detail |
|---|---|
Founded | 1925 |
Headquarters | Mundelein, Illinois |
Employees | 1,000-5,000 |
Revenue | $500M-1B (estimated) |
Primary capability | Powertrain & Drivetrain |
What MacLean-Fogg makes
Product capabilities include specialized fasteners, lock nuts, and industrial hardware designed for demanding applications.
Company details
MacLean-Fogg is a family-owned enterprise with over $1 billion in annual sales. MacLean-Fogg was founded in 1925, has an estimated 1,000-5,000 employees, and is headquartered in Mundelein, Illinois.
Frequently asked questions
What does MacLean-Fogg make?
MacLean-Fogg Company is a family-owned American manufacturer headquartered in Mundelein, Illinois. Founded in 1925, it employs 1,000-5,000 and generates $500M-1B in estimated annual revenue. The company operates 23 factories worldwide and serves automotive, appliance, construction, military, renewable energy, and industrial sectors.
Where is MacLean-Fogg headquartered?
MacLean-Fogg is headquartered in Mundelein, Illinois (1000 Allanson Road, Mundelein, Illinois, 60060).
When was MacLean-Fogg founded?
MacLean-Fogg was founded in 1925.
How big is MacLean-Fogg?
MacLean-Fogg has an estimated 1,000-5,000 employees, with revenue in the $500M-1B range (estimated).
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Last verified Oct 2026. Is this your company? Request a correction.
Latest news
Sep 2026
MacLean Master (Plymouth, MI) earned and regained Ford Q1 certification on Aug 20, bringing all 11 MacLean-Fogg facilities supplying Ford to Q1 status (company announcement).
Feb 2026
MacLean-Fogg acquired OMCO, the largest custom roll former in the US and a solar racking and tracker maker, expanding its engineered-industrial and renewable-energy footprint (PR Newswire).
Jan 2026
MacLean-Fogg marked 100 years of continuous family ownership, tracing its lineage to a single railroad lock nut in 1925 (PR Newswire).
Refreshed weekly · updated Sep 28, 2026
Leadership
Location & contact
Phone
+1 847-566-0010
Certification
IATF 16949
Automotive quality systems at MFCS component plants (IATF 16949, ISO 14001)
Inside the facility
MacLean Master team at the Plymouth, Michigan plant marking Ford Q1 certification, August 2026
Photos and video: macleanfogg.com
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