Verified Nov 2026
Electronics & Software
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Since 1975
Westermo is an industrial data communications company founded in 1975 and headquartered in Sweden, with an estimated 500 to 1,000 employees and an estimated revenue band of $100 to 250 million. The company is privately held and serves automotive, electric vehicle, appliance, medical, and industrial equipment markets. Its networking products include industrial Ethernet switches, routers, and gateways designed for harsh environments. In April 2026, its Merlin-3103 device was approved for use on Germany's LTE 450 network.
Westermo at a glance
Revenue
$100-250M
Est. band
Employees
500-1,000
Founded
1975
Certifications
ISO 9001
Industries
Automotive
Electric Vehicles
Appliance
Medical
Industrial Equipment
STABILITY SIGNALS
Established & active
51 years in operation (founded 1975).
Holds ISO 9001 certification(s) per public sources.
Overview
Westermo is an industrial data communications company founded in 1975 and headquartered in Sweden, with an estimated 500 to 1,000 employees and an estimated revenue band of $100 to 250 million. The company is privately held and serves automotive, electric vehicle, appliance, medical, and industrial equipment markets. Its networking products include industrial Ethernet switches, routers, and gateways designed for harsh environments. In April 2026, its Merlin-3103 device was approved for use on Germany's LTE 450 network.
At a glance
Attribute | Detail |
|---|---|
Founded | 1975 |
Employees | 500-1,000 |
Revenue | $100-250M (estimated) |
Primary capability | Electronics & Software |
Certifications | ISO 9001 |
What Westermo makes
The company holds ISO 9001 certification and offers industrial networking products including Ethernet switches, routers, gateways, and wireless LAN equipment.
Products and capabilities described on the company's own site include Lighting, Electronics, PCB (source: westermo.com).
Certifications
Westermo is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
ISO 9001 — westermo.com
Latest developments
2026-06-23 — Westermo and Eviden win DB InfraGo Rail Data Transfer Challenge (westermo.com)
2026-04-17 — Merlin-3103 Approved for Germany’s LTE 450 Network (westermo.com)
2025-10-30 — Westermo Strengthens European Presence with New Benelux Office | Westermo (westermo.com)
2025-10-21 — Westermo and RazorSecure Partnership | Westermo (westermo.com)
2025-04-03 — Aquisition of Welotec (westermo.com)
2025-03-25 — Westermo technology enables remote substation connectivity for major European electricity operator (westermo.com)
Facilities
Public sources reference the following locations:
Sweden — westermo.com
Company details
In June 2026, Westermo and Eviden won the DB InfraGo Rail Data Transfer Challenge, and the company has announced a partnership with RazorSecure on cybersecurity. Westermo was founded in 1975, and has an estimated 500-1,000 employees. On the LightSource stability read it is rated "Established & active": 51 years in operation (founded 1975). Holds ISO 9001 certification(s) per public sources.
Frequently asked questions
What does Westermo make?
Westermo is an industrial data communications company founded in 1975 and headquartered in Sweden, with an estimated 500 to 1,000 employees and an estimated revenue band of $100 to 250 million. The company is privately held and serves automotive, electric vehicle, appliance, medical, and industrial equipment markets. Its networking products include industrial Ethernet switches, routers, and gateways designed for harsh environments. In April 2026, its Merlin-3103 device was approved for use on Germany's LTE 450 network.
When was Westermo founded?
Westermo was founded in 1975.
How big is Westermo?
Westermo has an estimated 500-1,000 employees, with revenue in the $100-250M range (estimated).
What certifications does Westermo hold?
Westermo lists ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
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Last verified Nov 2026. Is this your company? Request a correction.
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