Verified Nov 2026
Castings & Forgings
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Since 1958
Rohm Semiconductor is a Japanese semiconductor manufacturer founded in 1958, with a headquarters listed in Japan and an estimated 10,000 to 50,000 employees. The company makes integrated circuits, discrete semiconductors, and modules, including power devices, and serves the automotive, electric-vehicle, electronics, industrial equipment, and renewable-energy sectors. It is privately held, with estimated annual revenue between $1 billion and $5 billion. In February 2026 it announced measures to strengthen supply capacity for its GaN power devices.
Rohm Semiconductor at a glance
Revenue
$1-5B
Est. band
Employees
10,000-50,000
Founded
1958
Certifications
ISO 9001
Import activity
186
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
186
Named foreign suppliers
9
Top origins
Thailand · Hong Kong S.A.R. · South Korea · Japan
Shared foreign counterparties do not establish that these companies buy from Rohm Semiconductor.
What this tells a buyer
Customs records list 186 shipments associated with the company, with origins in Thailand, Hong Kong, South Korea, Japan, Singapore, Taiwan, and China, and the most recent development reported is a 2026 expansion of its back-end chip outsourcing.
The company's product areas include power management ICs, MOSFETs, SiC and GaN power devices, and wireless communication modules, and it is certified to ISO 9001.
The company operated for decades in the semiconductor industry and entered a strategic partnership with Tata Electronics in December 2025 to work together on semiconductor business activities.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
STABILITY SIGNALS
Established & active
68 years in operation (founded 1958).
186 US import shipments on record.
Holds ISO 9001 certification(s) per public sources.
Overview
Rohm Semiconductor is a Japanese semiconductor manufacturer founded in 1958, with a headquarters listed in Japan and an estimated 10,000 to 50,000 employees. The company makes integrated circuits, discrete semiconductors, and modules, including power devices, and serves the automotive, electric-vehicle, electronics, industrial equipment, and renewable-energy sectors. It is privately held, with estimated annual revenue between $1 billion and $5 billion. In February 2026 it announced measures to strengthen supply capacity for its GaN power devices.
At a glance
Attribute | Detail |
|---|---|
Founded | 1958 |
Employees | 10,000-50,000 |
Revenue | $1-5B (estimated) |
Primary capability | Castings & Forgings |
Certifications | ISO 9001 |
What Rohm Semiconductor makes
The company's product areas include power management ICs, MOSFETs, SiC and GaN power devices, and wireless communication modules, and it is certified to ISO 9001.
Products and capabilities described on the company's own site include Assembly, Semiconductor, Electronics, Transmission, Lighting, LED (source: rohm.com).
Certifications
Rohm Semiconductor is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
ISO 9001 — rohm.com
Trade and customs footprint
Customs records list 186 shipments associated with the company, with origins in Thailand, Hong Kong, South Korea, Japan, Singapore, Taiwan, and China, and the most recent development reported is a 2026 expansion of its back-end chip outsourcing. US customs bill-of-lading records list 186 inbound shipments across 9 foreign suppliers, with top origins including Thailand · Hong Kong S.A.R. · South Korea · Japan.
Latest developments
2026-10-22 — MOSFET offers wide SOA for automotive safety functions and protection circuits (electropages.com)
2026-10-08 — Rohm Expands Back-End Chip Outsourcing- EE Times (eetimes.com)
2026-02-26 — ROHM Strengthens Supply Capability for GaN Power Devices (globenewswire.com)
2026-02-18 — ROHM’s New Compact, Highly Reliable Package Added to (globenewswire.com)
2025-12-22 — ROHM and Tata Electronics Form Strategic Partnership in the Semiconductor Business - Tata Electronics - Tata Electronics Private Limited (tataelectronics.com)
2025-09-25 — Infineon and ROHM collaborate on silicon carbide power | Infineon Technologies (infineon.com)
Facilities
Public sources reference the following locations:
India — eetimes.com
Japan — aixtron.com
Company details
The company operated for decades in the semiconductor industry and entered a strategic partnership with Tata Electronics in December 2025 to work together on semiconductor business activities. Rohm Semiconductor was founded in 1958, and has an estimated 10,000-50,000 employees. On the LightSource stability read it is rated "Established & active": 68 years in operation (founded 1958). 186 US import shipments on record. Holds ISO 9001 certification(s) per public sources.
Frequently asked questions
What does Rohm Semiconductor make?
Rohm Semiconductor is a Japanese semiconductor manufacturer founded in 1958, with a headquarters listed in Japan and an estimated 10,000 to 50,000 employees. The company makes integrated circuits, discrete semiconductors, and modules, including power devices, and serves the automotive, electric-vehicle, electronics, industrial equipment, and renewable-energy sectors. It is privately held, with estimated annual revenue between $1 billion and $5 billion. In February 2026 it announced measures to strengthen supply capacity for its GaN power devices.
When was Rohm Semiconductor founded?
Rohm Semiconductor was founded in 1958.
How big is Rohm Semiconductor?
Rohm Semiconductor has an estimated 10,000-50,000 employees, with revenue in the $1-5B range (estimated).
What certifications does Rohm Semiconductor hold?
Rohm Semiconductor lists ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
Does Rohm Semiconductor import from overseas suppliers?
US customs bill-of-lading records show 186 inbound shipments for Rohm Semiconductor, with top origins including Thailand · Hong Kong S.A.R. · South Korea · Japan.
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Last verified Nov 2026. Is this your company? Request a correction.
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