Verified Nov 2026
Electronics & Software
·
Freeburg, Illinois
·
Since 1963
Siemens Manufacturing Co., Inc. is a privately held contract electronics manufacturer headquartered in Freeburg, Illinois, United States. Founded in 1963, it employs roughly 100 to 200 people with an estimated revenue band of $50 to 100 million. The company provides custom electronic components and assemblies, including surface mount and through-hole assembly, and serves the automotive, electric-vehicle, electronics, appliance, medical, and industrial equipment industries. It has also published commentary on reshoring electronic components manufacturing to protect data center supply chains.
Siemens Manufacturing Co., Inc. at a glance
Revenue
$50-100M
Est. band
Employees
100-200
Founded
1963
Headquarters
Freeburg, Illinois
Certifications
ISO 9001
Import activity
11
Industries
Automotive
Electric Vehicles
Electronics
Appliance
Medical
Industrial Equipment
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
11
Named foreign suppliers
5
Top origins
Hong Kong S.A.R. · China
Shared foreign counterparties do not establish that these companies buy from Siemens Manufacturing Co., Inc..
What this tells a buyer
Siemens Manufacturing Co., Inc. has been operating since 1963, giving it more than six decades of experience in electronics manufacturing services, and it published a April 2026 article on reshoring electronic components manufacturing to protect data center supply chains.
The company holds ISO 9001 certification and lists capabilities in PCB assembly, surface mount assembly, through-hole assembly, and wire harness production, with product areas including sensors, LEDs, and lighting.
Siemens Manufacturing Co., Inc. is privately held, and in October 2026 REAG reported advising Aragra on a Siemens Manufacturing acquisition.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
STABILITY SIGNALS
Established & active
63 years in operation (founded 1963).
Holds ISO 9001 certification(s) per public sources.
Overview
Siemens Manufacturing Co., Inc. is a privately held contract electronics manufacturer headquartered in Freeburg, Illinois, United States. Founded in 1963, it employs roughly 100 to 200 people with an estimated revenue band of $50 to 100 million. The company provides custom electronic components and assemblies, including surface mount and through-hole assembly, and serves the automotive, electric-vehicle, electronics, appliance, medical, and industrial equipment industries. It has also published commentary on reshoring electronic components manufacturing to protect data center supply chains.
At a glance
Attribute | Detail |
|---|---|
Founded | 1963 |
Headquarters | Freeburg, Illinois |
Employees | 100-200 |
Revenue | $50-100M (estimated) |
Primary capability | Electronics & Software |
Certifications | ISO 9001 |
What Siemens Manufacturing Co., Inc. makes
The company holds ISO 9001 certification and lists capabilities in PCB assembly, surface mount assembly, through-hole assembly, and wire harness production, with product areas including sensors, LEDs, and lighting.
Products and capabilities described on the company's own site include Assembly, Electronics, Coating, Sensor, Lighting, Wire Harness, PCB, LED (source: siemensmfg.com).
Certifications
Siemens Manufacturing Co., Inc. is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
ISO 9001 — siemensmfg.com
Trade and customs footprint
Siemens Manufacturing Co., Inc. has been operating since 1963, giving it more than six decades of experience in electronics manufacturing services, and it published a April 2026 article on reshoring electronic components manufacturing to protect data center supply chains. US customs bill-of-lading records list 11 inbound shipments across 5 foreign suppliers, with top origins including Hong Kong S.A.R. · China.
Latest developments
2026-10-29 — REAG Advises Aragra on Siemens Manufacturing Acquisition (reag.com)
2026-04-27 — How Data Center EMS Providers Are Powering the Future - Custom Electronic Components Contract Electronics Manufacturing | Siemens Manufacturing (siemensmfg.com)
2026-04-10 — How Reshoring Electronic Components Manufacturing Protects Data Center Supply Chains - Custom Electronic Components Contract Electronics Manufacturing | Siemens Manufacturing (siemensmfg.com)
2025-10-07 — Not All Contract Manufacturing Companies Are the Same - Custom Electronic Components Contract Electronics Manufacturing | Siemens Manufacturing (siemensmfg.com)
2025-04-18 — Siemens Manufacturing Co., Inc. (linkedin.com)
2025-02-13 — Are Companies Looking For American Electronics Manufacturers? - Custom Electronic Components Contract Electronics Manufacturing (siemensmfg.com)
Facilities
Siemens Manufacturing Co., Inc. is headquartered in Freeburg, Illinois. Public sources also reference these locations:
Freeburg, IL — siemensmfg.com
Company details
Siemens Manufacturing Co., Inc. is privately held, and in October 2026 REAG reported advising Aragra on a Siemens Manufacturing acquisition. Siemens Manufacturing Co., Inc. was founded in 1963, has an estimated 100-200 employees, and is headquartered in Freeburg, Illinois. On the LightSource stability read it is rated "Established & active": 63 years in operation (founded 1963). Holds ISO 9001 certification(s) per public sources.
Frequently asked questions
What does Siemens Manufacturing Co., Inc. make?
Siemens Manufacturing Co., Inc. is a privately held contract electronics manufacturer headquartered in Freeburg, Illinois, United States. Founded in 1963, it employs roughly 100 to 200 people with an estimated revenue band of $50 to 100 million. The company provides custom electronic components and assemblies, including surface mount and through-hole assembly, and serves the automotive, electric-vehicle, electronics, appliance, medical, and industrial equipment industries. It has also published commentary on reshoring electronic components manufacturing to protect data center supply chains.
Where is Siemens Manufacturing Co., Inc. headquartered?
Siemens Manufacturing Co., Inc. is headquartered in Freeburg, Illinois (410 W Washington St, Freeburg, Illinois, 62243).
When was Siemens Manufacturing Co., Inc. founded?
Siemens Manufacturing Co., Inc. was founded in 1963.
How big is Siemens Manufacturing Co., Inc.?
Siemens Manufacturing Co., Inc. has an estimated 100-200 employees, with revenue in the $50-100M range (estimated).
What certifications does Siemens Manufacturing Co., Inc. hold?
Siemens Manufacturing Co., Inc. lists ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
Does Siemens Manufacturing Co., Inc. import from overseas suppliers?
US customs bill-of-lading records show 11 inbound shipments for Siemens Manufacturing Co., Inc., with top origins including Hong Kong S.A.R. · China.
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Last verified Nov 2026. Is this your company? Request a correction.
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