About SUMCO
SUMCO is a publicly listed company based in Tokyo (Japan) founded in 1999. Silicon wafers for semiconductors are manufactured by SUMCO. The company has 9,850 employees. Its chief executive, as recorded, is Mayuki Hashimoto. Its website sumcosi.com draws about 47 thousand monthly visits. SUMCO offers products and services including Silicon Wafers and Semiconductor Wafers. Its focus areas include Semiconductors, Semiconductor and Photonic Materials and Chemicals and Materials. Its legal entity is SUMCO CORPORATION.
Company details
SUMCO was established in 1999 in Tokyo, Japan, as a key player in the semiconductor sector. High-purity silicon wafers are produced for use in electronic devices including smartphones, PCs, tablets, and wearables, as well as home appliances like televisions and air conditioners, and transportation systems such as cars and trains. Operations focus on wafer fabrication to support global electronics manufacturing.
- Headquarters Tokyo, Japan
- Employees 9,850
- Stage Public
- SectorsTechnology
- Website category Computers Electronics and Technology · Consumer Electronics
- Website sumcosi.com
- Legal Name Sumco Corporation
- Annual Revenue$2.61 B (USD)3.29as on Dec 31, 2025
- Net Profit-$75 M (USD)-159.11as on Dec 31, 2025
- EBITDA$717.68 M (USD)-1.44as on Dec 31, 2025
- Employee Count9,850
Products & Services of SUMCO
SUMCO offers a comprehensive portfolio of products and services, including Silicon Wafers and Semiconductor Wafers.
Silicon wafers are produced for semiconductor applications and are essential for electronic device manufacturing
Various semiconductor wafers are supplied for industrial uses, supporting technology advancements in the sector
People of SUMCO
19 people are tracked at SUMCO (7 in leadership, 12 in team); the tracked headcount is 9,850.
| Name | Role | Group |
|---|---|---|
Mayuki Hashimoto | CEO | Leadership |
George Hua | Director Of Crystal Engineering | Leadership |
Jim McAlinden | Director, Applications Engineering | Leadership |
Lloyd Hayward | Director Of Production Strategy & Analysis | Leadership |
David O'Ferrell | Vp, Applications Engineering | Leadership |
Rob Koehler | Senior Vice President And Manufacturing Officer | Leadership |
Takayuki Komori | General Manager, Public Relations & IR Dept. | Leadership |
Susumu Tamaoki | Assistant Manager | Team |
Karl B. | Manager, Applications Engineering | Team |
Arlie Rahn | Corporate Manager Of Software Development | Team |
Robert Gunderson | IT Manager | Team |
Anne Jacobs | Sumco Phoenix Coporation Executive Secretary/travel Manager/ Corporate Travel Agent | Team |
Yoshihiro Azuma | Executive Officer | Team |
Boeddeker Tom | Quality Manager | Team |
Rob Danner | Application Engineer | Team |
Tim Gallagher | Automation Engineer | Team |
Desiree MacHado Assoc Cipd | HR Manager | Team |
Rob Weirich | Engineering Supervisor | Team |
Gheorghe Lese | Quality Assurance Manager | Team |
Complete people profiles for SUMCO
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IPO & Listings of SUMCO
SUMCO is a publicly listed company on the TSE with ticker symbol 3436 in Japan, operating in the Producer manufacturing sector. As a publicly traded entity, the company provides investors with opportunities to participate in its growth story through equity ownership. The listing enables access to capital markets, enhances corporate visibility, and provides liquidity for shareholders while maintaining transparency through regulatory compliance and regular financial disclosures.
- IPO date17 Nov 2005
- Listed onTSE: 34360
- Listed entitySUMCO Corporation
- Exchange sectorProducer manufacturing
- ISINJP3322930003
- Share price3,079.00 JPY (-1.63% on the day) · 2026-10-14
- Market capitalisation1,096,023,258,667.00 JPY
- Price to earnings186.5
- EPS (diluted, trailing year)-79.28 JPY
- Dividend yield0.58%
- Volume (last session)10,337,300
Financials of SUMCO
| Year | Revenue | Net income | EBITDA |
|---|---|---|---|
| 2025 | 409.67B JPY | -11.75B JPY | 112.44B JPY |
| 2024 | 396.62B JPY | 19.88B JPY | 114.09B JPY |
| 2023 | 425.94B JPY | 63.88B JPY | 144.66B JPY |
| 2022 | 441.08B JPY | 70.21B JPY | 169.53B JPY |
| 2021 | 335.67B JPY | 41.12B JPY | 104.33B JPY |
Detailed financial statements for SUMCO
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Web traffic of SUMCO
The website of SUMCO (sumcosi.com) receives about 46.9K visits a month and ranks #426,505 among all websites worldwide, #4,026 in Consumer Electronics.
- Monthly visits46.9K
▼ 3% vs previous month
- Unique visitors22.7K
per month
- Global rank#426,505
among all websites
- Category rank#4,026
Computers Electronics and Technology · Consumer Electronics
- Bounce rate27%
- Pages per visit7.4
- Average visit3 min 19 sec
- DevicesDesktop 70% · Mobile 30%
Websites whose visitors overlap most with SUMCO. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
hikari-ax.co.jp | hikari-ax.co.jp | 100% | #1,226,852 | – | |
samco.co.jp | samco.co.jp | 97% | #1,175,666 | – | |
| j-devices.co.jp | 94% | View details | |||
tensilica.co.jp | tensilica.co.jp | 87% | – | ||
sony-lsi.co.jp | sony-lsi.co.jp | 87% | – | ||
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
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Related news about Sumco
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Frequently Asked Questions about SUMCO
SUMCO was founded in 1999.
SUMCO is headquartered in Tokyo, Japan. It is registered at Tokyo, Tokyo, Japan.
Mayuki Hashimoto is the CEO of SUMCO, as recorded in our data.
SUMCO has 9,850 employees.
Annual revenue of SUMCO is $2.61B as on Dec 31, 2025.
SUMCO was established in 1999 in Tokyo, Japan, as a key player in the semiconductor sector. High-purity silicon wafers are produced for use in electronic devices including smartphones, PCs, tablets, and wearables, as well as home appliances like televisions and air conditioners, and transportation systems such as cars and trains. Operations focus on wafer fabrication to support global electronics manufacturing.
SUMCO offers Silicon Wafers and Semiconductor Wafers.
Yes, SUMCO is publicly traded on TSE under the ticker symbol 3436.
SUMCO operates through Sumco Corporation.