Verified Oct 2026
Cables, Controls & Motion
·
Bowling Green, Kentucky
·
Since 1986
Sumitomo Electric Wiring Systems (SEWS) manufactures automotive wiring harnesses, electrical distribution systems, and electronic components. Headquartered in Bowling Green, Kentucky, founded in 1986 as a Sumitomo Electric subsidiary, the company operates in multiple U.S. states with 1,000-5,000 employees and estimated revenue of $1-5 billion, serving major automotive OEMs.
Sumitomo Electric Wiring Systems, Inc. at a glance
Revenue
$1-5B
Est. band
Employees
1,000-5,000
Founded
1986
Headquarters
Bowling Green, Kentucky
Import activity
29802
Industries
Automotive
Electric Vehicles
Electronics
Plumbing & Hardware
Renewable Energy
Industrial Equipment
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
29802
Named foreign suppliers
50
Top origins
Hong Kong S.A.R. · Taiwan · Vietnam · Japan
Shared foreign counterparties do not establish that these companies buy from Sumitomo Electric Wiring Systems, Inc..
What this tells a buyer
SEWS records 29,802 customs shipments, sourcing wiring harnesses and components from Vietnam, Philippines, Japan, Singapore, China, South Korea, Italy, Thailand, Uruguay, Belgium, Germany, France, Netherlands, and Mexico.
The company specializes in automotive wiring harnesses, high-voltage motor cables for electric and hybrid vehicles, center panels, and electronic control units.
SEWS, a subsidiary of Sumitomo Electric Industries, employs approximately 8,000 people and serves Toyota, Honda, Ford, and General Motors in the automotive electrification transition.
Source: US customs bill-of-lading records and public filings · Last verified Oct 29, 2026
STABILITY SIGNALS
Established & active
40 years in operation (founded 1986).
29,802 US import shipments on record.
Overview
Sumitomo Electric Wiring Systems (SEWS) manufactures automotive wiring harnesses, electrical distribution systems, and electronic components. Headquartered in Bowling Green, Kentucky, founded in 1986 as a Sumitomo Electric subsidiary, the company operates in multiple U.S. states with 1,000-5,000 employees and estimated revenue of $1-5 billion, serving major automotive OEMs.
At a glance
Attribute | Detail |
|---|---|
Founded | 1986 |
Headquarters | Bowling Green, Kentucky |
Employees | 1,000-5,000 |
Revenue | $1-5B (estimated) |
Primary capability | Cables, Controls & Motion |
What Sumitomo Electric Wiring Systems, Inc. makes
The company specializes in automotive wiring harnesses, high-voltage motor cables for electric and hybrid vehicles, center panels, and electronic control units.
Trade and customs footprint
SEWS records 29,802 customs shipments, sourcing wiring harnesses and components from Vietnam, Philippines, Japan, Singapore, China, South Korea, Italy, Thailand, Uruguay, Belgium, Germany, France, Netherlands, and Mexico. US customs bill-of-lading records list 29802 inbound shipments across 50 foreign suppliers, with top origins including Hong Kong S.A.R. · Taiwan · Vietnam · Japan.
Company details
SEWS, a subsidiary of Sumitomo Electric Industries, employs approximately 8,000 people and serves Toyota, Honda, Ford, and General Motors in the automotive electrification transition. Sumitomo Electric Wiring Systems, Inc. was founded in 1986, has an estimated 1,000-5,000 employees, and is headquartered in Bowling Green, Kentucky. On the LightSource stability read it is rated "Established & active": 40 years in operation (founded 1986). 29,802 US import shipments on record.
Frequently asked questions
What does Sumitomo Electric Wiring Systems, Inc. make?
Sumitomo Electric Wiring Systems (SEWS) manufactures automotive wiring harnesses, electrical distribution systems, and electronic components. Headquartered in Bowling Green, Kentucky, founded in 1986 as a Sumitomo Electric subsidiary, the company operates in multiple U.S. states with 1,000-5,000 employees and estimated revenue of $1-5 billion, serving major automotive OEMs.
Where is Sumitomo Electric Wiring Systems, Inc. headquartered?
Sumitomo Electric Wiring Systems, Inc. is headquartered in Bowling Green, Kentucky (1018 Ashley St, Bowling Green, Kentucky, 42103-2466).
When was Sumitomo Electric Wiring Systems, Inc. founded?
Sumitomo Electric Wiring Systems, Inc. was founded in 1986.
How big is Sumitomo Electric Wiring Systems, Inc.?
Sumitomo Electric Wiring Systems, Inc. has an estimated 1,000-5,000 employees, with revenue in the $1-5B range (estimated).
Does Sumitomo Electric Wiring Systems, Inc. import from overseas suppliers?
US customs bill-of-lading records show 29802 inbound shipments for Sumitomo Electric Wiring Systems, Inc., with top origins including Hong Kong S.A.R. · Taiwan · Vietnam · Japan.
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Last verified Oct 2026. Is this your company? Request a correction.
Leadership
Location & contact
Inside the facility
Photos and video: sewsus.com
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