What departments does SUMCO have?

SUMCO has employees across 14 departments including Manufacturing, Marketing, Engineering, Quality Assurance, Analytics.

What is the largest department at SUMCO?

The largest department at SUMCO is Engineering with 6 employees.

Where are SUMCO employees located globally?

SUMCO has employees across 5 continents and 12 countries including Japan, Indonesia, Singapore, United Kingdom Of Great Britain And Northern Ireland, France.

How has SUMCO's team size changed over time?

SUMCO's team has decreased from approximately 613 to 282 employees based on available data.

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SUMCO Employee Directory

Semiconductor ManufacturingArizona, United States501-1000 Employees

SUMCO Phoenix Corporation manufactures electronic-grade silicon wafers for the semiconductor industry. Our wafers are used by companies all over the world to make integrated circuits and semiconductor devices that power a myriad of electronic products, from computers to cell phones, digital watches to automobile engine systems.

Find SUMCO employees' phone numbers or email addresses

SUMCO Global Highlights

North America
346

United States Of America
344
Dominican Republic
2

Asia
45

Japan
23
Indonesia
20
Singapore
2

Europe
10

United Kingdom Of Great Britain And Northern Ireland
5
France
3
Italy
1
Ireland
1

South America
1

Ecuador
1

SUMCO's Leadership

C. T.
Chief Executive Officer
Mobile Phone
Email
J. R.
Chief Executive Officer
Mobile Phone
Email
C. N.
Vice President Technical Marketing
Mobile Phone
Email
B. R.
President And Chief Executive Officer
Mobile Phone
Email
J. P.
President
Mobile Phone
Email
L. R.
President
Mobile Phone
Email
D. R.
Head Of Department
Mobile Phone
Email
C. H.
Founder
Mobile Phone
Email

SUMCO Employee Metrics

100%

50%

2026

2025

Engineering
Quality Assurance
Information Technology
Manufacturing
Sales
Other
Analytics
Administrative
Accounting
Business
Supply Chain

Contact profiles from SUMCO

Name

Title

Contact Info

Location

Last Update

T. M.
Lead Sw Development Engineer
Mobile Phone
Email
United StatesArizona
Oct 22, 2025
L. K.
Senior Spec Registration Manager
Mobile Phone
Email
United StatesOregon
Mar 25, 2026
G. S.
It Manager
Mobile Phone
Email
United StatesArizona
Oct 16, 2025
R. S.
Maintenance / Facilities Manager
Mobile Phone
Email
United StatesArizona
Mar 24, 2026
R. S.
Laboratory Manager
Mobile Phone
Email
United StatesArizona
Mar 24, 2026
A. M.
Maintenance/Facilities Manager
Mobile Phone
Email
United StatesArizona
Apr 16, 2026
J. N.
Group Leader
Mobile Phone
Email
United StatesArizona
Sep 09, 2025
R. G.
Engineer Manager
Mobile Phone
Email
United StatesArizona
Feb 16, 2026
T. S.
Manufacturing Manager
Mobile Phone
Email
United StatesArizona
Oct 20, 2025
D. M.
Site Services Manager
Mobile Phone
Email
United StatesArizona
Apr 13, 2026

Frequently Asked Questions

What is SUMCO known for?

SUMCO operates in the Semiconductor Manufacturing industry. The company's main headquarters is located in Phoenix, Arizona 85050 United States; you can contact the main corporate office by phone at

+1-480-473-****

. Explore SUMCO's company overview page for more information.

What is SUMCO's most common email format?

SUMCO employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more SUMCO email formats with LeadIQ.

How many employees does SUMCO have currently?

SUMCO has approximately 618 employees as of April 2026. These team members are located across 4 continents, including North AmericaAsiaEurope.

Who are SUMCO's key employees and leadership?

As of April 2026, SUMCO's key employees include:

Chief Executive Officer: C. T.
Chief Executive Officer: J. R.
Vice President Technical Marketing: C. N.
President And Chief Executive Officer: B. R.
President: J. P.

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