Entegris, INC.

What they make

Open positions

Openings read from Entegris, INC.’s own job board on Workday, last checked OCT 25, 2026. FactoryRegistry does not host applications — each title opens the posting where the company published it.

• Senior Director, R&D Management, Specialty Chemicals
  Ambler, PA · posted OCT 9, 2026
• Chemical Manufacturing, Production Supervisor
  Ambler, PA
• Senior Scientist, Product Development
  Ambler, PA

• Manufacturing Technician II
  Hsinchu City, Taiwan · posted OCT 24, 2026
• Manufacturing Technician II
  Hsinchu City, Taiwan · posted OCT 24, 2026
• Machine Operator II
  Hsinchu City, Taiwan · posted OCT 24, 2026
• Machine Operator II
  Hsinchu City, Taiwan · posted OCT 24, 2026
• Machine Operator II
  Hsinchu City, Taiwan · posted OCT 24, 2026
• Machine Operator II
  Hsinchu City, Taiwan · posted OCT 24, 2026
• Manufacturing Operator, Mon-Fri, 6 am to 2:30 pm
  Franklin, MA · posted OCT 23, 2026
• Operations Associate II - Front Half Night Shift
  Hillsboro, OR · posted OCT 23, 2026
• Manufacturing Operator
  Yonezawa-shi, Yamagata, Japan · posted OCT 23, 2026
• Liquid Systems Sustaining Engineering Manager
  Wonju-si, Gangwon-do, South Korea · posted OCT 23, 2026

592 more on the company’s board

Where it is

Other plants nearby

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Every listed plant in Montgomery County

Also at this address

No other federal record shares this street address.

Where this record comes from

2 sources hold this plant, and 7 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

EPA cross-references this facility in NPDES, RCRAINFO, TSCA · EPA site type STATIONARY.

• EPA ECHO compliance recordsOPERATING
  first seen MAR 2025 · last seen AUG 2026
• EPA Facility Registry ServiceEXISTENCE
  Record 110070434920 · first seen DEC 2018 · last seen DEC 2018

IN MONTGOMERY COUNTY33 other plants share this one’s industry (Basic Chemical Manufacturing, NAICS 3251); 11 of them have a size band on record.

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name

EPA: ENTEGRIS, INC. · OCT 2026

Street address

EPA: 340 MATHERS ROAD · OCT 2026

City

EPA: AMBLER · OCT 2026

State

EPA: PA · OCT 2026

County (FIPS code)

EPA: 42091 · OCT 2026

Coordinates

EPA: 40.164441,-75.237259 · OCT 2026

Hazardous waste generator (RCRA)

EPA ECHO: LQG · OCT 2026