Verified Nov 2026
Lighting
·
Owariasahi, Aichi
·
Since 1973
Maruwa CO., Ltd. is a Japanese manufacturer of ceramic components and lighting equipment, headquartered in Owariasahi, Aichi. Founded in 1973, the company employs between 1,000 and 5,000 people and is publicly listed on the Tokyo Stock Exchange under ticker 5344. Its ceramic products, including thermal management substrates, serve the semiconductor, electronics, automotive, electric-vehicle, and renewable-energy industries. Recent reporting describes its interim results for the first half of fiscal 2026 as a record profit period, with operating profit up 62% and net profit up 63.5% to ¥12.1 billion.
Maruwa CO., Ltd. at a glance
Revenue
466.7M
Employees
1,000-5,000
Founded
1973
Headquarters
Owariasahi, Aichi
Ownership
Publicly traded (JPX: 5344.T)
Certifications
ISO 14001 · ISO 9001
Industries
Automotive
Electric Vehicles
Electronics
Plumbing & Hardware
Renewable Energy
Industrial Equipment
STABILITY SIGNALS
Established & strong
53 years in operation (founded 1973).
Publicly listed; no distress event on record.
Holds ISO 14001, ISO 9001 certification(s) per public sources.
Overview
Maruwa CO., Ltd. is a Japanese manufacturer of ceramic components and lighting equipment, headquartered in Owariasahi, Aichi. Founded in 1973, the company employs between 1,000 and 5,000 people and is publicly listed on the Tokyo Stock Exchange under ticker 5344. Its ceramic products, including thermal management substrates, serve the semiconductor, electronics, automotive, electric-vehicle, and renewable-energy industries. Recent reporting describes its interim results for the first half of fiscal 2026 as a record profit period, with operating profit up 62% and net profit up 63.5% to ¥12.1 billion.
At a glance
Attribute | Detail |
|---|---|
Founded | 1973 |
Headquarters | Owariasahi, Aichi |
Employees | 1,000-5,000 |
Revenue | 466.7M |
Ownership | Publicly traded (JPX: 5344.T) |
Primary capability | Lighting |
Certifications | ISO 14001 · ISO 9001 |
What Maruwa CO., Ltd. makes
The company holds ISO 9001 and ISO 14001 certifications and produces ceramic substrates, electronic components, LED lighting, and quartz glass products.
Products and capabilities described on the company's own site include Lighting, LED, Glass, Semiconductor, Aluminum, Seal (source: maruwa-g.com).
Certifications
Maruwa CO., Ltd. is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
ISO 14001 — maruwa-g.com
ISO 9001 — maruwa-g.com
Latest developments
2026-10-27 — MARUWA Financial Results: Interim Operating Profit Up 62%, What About Next Fiscal Year with New Factories?｜アセットアライブ (note.com)
2026-10-27 — MARUWA Posts Record H1 FY2026 Profit Up 63.5% to ¥12.1bn, Lifts Full-Year Forecast and Dividend – Minichart (minichart.com.sg)
2026-10-27 — 【決算速報】MARUWAは増収増益 27年3月期第2四半期（中間期）：ニュース：中日BIZナビ (chunichi.co.jp)
2026-07-31 — Annual Financial Report | Regulatory News (lse.co.uk)
2026-07-31 — Maruwa annual results: sales rise but profits slip as investment surges | Joshua Thompson (joshthompson.co.uk)
2026-07-29 — 1st Quarter Results | Company Announcement | Investegate (investegate.co.uk)
Company details
Maruwa is listed on the Tokyo Stock Exchange with an estimated revenue band of ¥466.7 million and operates facilities in Japan, Europe, the United States, and several Asian countries. Maruwa CO., Ltd. was founded in 1973, has an estimated 1,000-5,000 employees, and is headquartered in Owariasahi, Aichi. On the LightSource stability read it is rated "Established & strong": 53 years in operation (founded 1973). Publicly listed; no distress event on record. Holds ISO 14001, ISO 9001 certification(s) per public sources.
Frequently asked questions
What does Maruwa CO., Ltd. make?
Maruwa CO., Ltd. is a Japanese manufacturer of ceramic components and lighting equipment, headquartered in Owariasahi, Aichi. Founded in 1973, the company employs between 1,000 and 5,000 people and is publicly listed on the Tokyo Stock Exchange under ticker 5344. Its ceramic products, including thermal management substrates, serve the semiconductor, electronics, automotive, electric-vehicle, and renewable-energy industries. Recent reporting describes its interim results for the first half of fiscal 2026 as a record profit period, with operating profit up 62% and net profit up 63.5% to ¥12.1 billion.
Where is Maruwa CO., Ltd. headquartered?
Maruwa CO., Ltd. is headquartered in Owariasahi, Aichi.
When was Maruwa CO., Ltd. founded?
Maruwa CO., Ltd. was founded in 1973.
How big is Maruwa CO., Ltd.?
Maruwa CO., Ltd. has an estimated 1,000-5,000 employees, with revenue in the 466.7M range.
Is Maruwa CO., Ltd. publicly traded?
Publicly traded (JPX: 5344.T). Public financial figures are drawn from its filings.
What certifications does Maruwa CO., Ltd. hold?
Maruwa CO., Ltd. lists ISO 14001 · 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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