Verified Nov 2026
Electronics & Software
·
Fremont, California
·
Since 1950
IEM is a manufacturer of electrical distribution systems, integrated control systems, and power quality equipment, headquartered in Fremont, California, and founded in 1950. It has between 1,000 and 5,000 employees and estimated annual revenue of $100 to $250 million. The company is privately held and serves the automotive, electric vehicle, electronics, construction, medical, and renewable energy industries. In August 2026, IEM announced a $200 million manufacturing facility in San Antonio, Texas, intended to expand its U.S. production capacity.
IEM at a glance
Revenue
$100-250M
Est. band
Employees
1,000-5,000
Founded
1950
Headquarters
Fremont, California
Import activity
204
Industries
Automotive
Electric Vehicles
Electronics
Construction
Medical
Renewable Energy
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
204
Named foreign suppliers
25
Top origins
Hong Kong S.A.R. · Germany · China · Italy
Shared foreign counterparties do not establish that these companies buy from IEM.
What this tells a buyer
No customs or trade shipment data is available in the record, but IEM announced a $200 million manufacturing facility in the Brooks area of San Antonio, Texas, on August 25, 2026, with reported plans for up to 3,000 jobs.
IEM's listed product lines include assembly and LED products, and on August 3, 2026, the company qualified for the CSA SMTC program, a certification pathway aimed at shortening time-to-market for new products.
IEM is privately held, has more than 75 years of experience in electrical manufacturing according to its public description, and reports no named customers in the available record.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
Overview
IEM is a manufacturer of electrical distribution systems, integrated control systems, and power quality equipment, headquartered in Fremont, California, and founded in 1950. It has between 1,000 and 5,000 employees and estimated annual revenue of $100 to $250 million. The company is privately held and serves the automotive, electric vehicle, electronics, construction, medical, and renewable energy industries. In August 2026, IEM announced a $200 million manufacturing facility in San Antonio, Texas, intended to expand its U.S. production capacity.
At a glance
Attribute | Detail |
|---|---|
Founded | 1950 |
Headquarters | Fremont, California |
Employees | 1,000-5,000 |
Revenue | $100-250M (estimated) |
Primary capability | Electronics & Software |
What IEM makes
IEM's listed product lines include assembly and LED products, and on August 3, 2026, the company qualified for the CSA SMTC program, a certification pathway aimed at shortening time-to-market for new products.
Products and capabilities described on the company's own site include Assembly, LED (source: iemfg.com).
Trade and customs footprint
No customs or trade shipment data is available in the record, but IEM announced a $200 million manufacturing facility in the Brooks area of San Antonio, Texas, on August 25, 2026, with reported plans for up to 3,000 jobs. US customs bill-of-lading records list 204 inbound shipments across 25 foreign suppliers, with top origins including Hong Kong S.A.R. · Germany · China · Italy.
Latest developments
2026-09-01 — IEM to Open $200 Million Manufacturing Facility in Texas | Manufacturing News Desk | advancedmanufacturing.org (advancedmanufacturing.org)
2026-08-25 — IEM Announces $200 Million Manufacturing Facility in San Antonio, Creating Jobs and Expanding U.S. Production Capacity to Support Business Growth | A Long History of Powering What's Next | IEM (iemfg.com)
2026-08-25 — Silicon Valley manufacturer IEM to build $200M factory at Brooks (sanantonioreport.org)
2026-08-25 — IEM Expands to Brooks with $200 Million Investment and Up to 3,000 Jobs (livebrooks.com)
2026-08-03 — IEM Qualifies for CSA SMTC Program, Accelerating New Product Time-to-Market (iemfg.com)
2026-06-23 — Aaron Gibbs Joins IEM as Chief Technology Officer | A Long History of Powering What's Next | IEM (iemfg.com)
Company details
IEM is privately held, has more than 75 years of experience in electrical manufacturing according to its public description, and reports no named customers in the available record. IEM was founded in 1950, has an estimated 1,000-5,000 employees, and is headquartered in Fremont, California.
Frequently asked questions
What does IEM make?
IEM is a manufacturer of electrical distribution systems, integrated control systems, and power quality equipment, headquartered in Fremont, California, and founded in 1950. It has between 1,000 and 5,000 employees and estimated annual revenue of $100 to $250 million. The company is privately held and serves the automotive, electric vehicle, electronics, construction, medical, and renewable energy industries. In August 2026, IEM announced a $200 million manufacturing facility in San Antonio, Texas, intended to expand its U.S. production capacity.
Where is IEM headquartered?
IEM is headquartered in Fremont, California (48205 Warm Springs Blvd, Fremont, California, 94539).
When was IEM founded?
IEM was founded in 1950.
How big is IEM?
IEM has an estimated 1,000-5,000 employees, with revenue in the $100-250M range (estimated).
Does IEM import from overseas suppliers?
US customs bill-of-lading records show 204 inbound shipments for IEM, with top origins including Hong Kong S.A.R. · Germany · China · Italy.
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Last verified Nov 2026. Is this your company? Request a correction.
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