Shellback Holdings, LLC

What they make

• wet etch
• carrier cleaning
• MERCURY
• Power Devices
• MEMS
• Sensors
• Photonics
• Advanced Packaging
• aqueous

NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026

Open positions

Openings read from Shellback Holdings, LLC’s own job board on Paylocity, last checked OCT 26, 2026. FactoryRegistry does not host applications — each title opens the posting where the company published it.

• Quality Technician
  Coopersburg, PA, USA · posted SEP 17, 2026
• Senior Mechanical Engineer - Semiconductor Capital Equipment
  Coopersburg, PA, USA · posted SEP 14, 2026
• Assembly Technician Level Two - Second Shift
  Coopersburg, PA, USA · posted SEP 10, 2026
• Assembly Technician Level One - Second Shift
  Coopersburg, PA, USA · posted SEP 10, 2026
• Assembly Technician - Level One
  Coopersburg, PA, USA · posted JUL 20, 2026
• Assembly Technician - Level Two
  Coopersburg, PA, USA · posted JUL 20, 2026

• Field Service Engineer
  Cincinnati, OH, USA · posted SEP 8, 2026
• Electronics Technician
  West Chester, OH, USA · posted JUN 17, 2026

Where it is

Location not verified — this address could not be matched to Census TIGER, so the facility is not placed on the map.

Other plants nearby

No other listed facility within 40 km shares this one’s four-digit industry code, or this record has no coordinates to measure from.

Also at this address

1 other record shares this street address. Separate filings can describe distinct businesses on one site, or the same plant recorded by different agencies, so every record is kept rather than merged away.

Shellback Semiconductor Technology, LLC

Coopersburg, PA

● ACTIVE333242

Where this record comes from

3 sources hold this plant, and 10 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.

• The company’s own websiteOPERATING
  first seen JUL 2026 · last seen OCT 2026
• SAM.gov entity registrationOPERATING
  Record FP1ZSNL7LM24 · first seen MAY 2026 · last seen MAY 2026
• DOL Form 5500 retirement plan filingsOPERATING
  Record 811755265|PA|18036|416 s 4th st · first seen DEC 2024 · last seen DEC 2024

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

SAM.gov: SHELLBACK HOLDINGS, LLC · MAY 2026

Street address

SAM.gov: 416 S 4TH ST · MAY 2026

City

SAM.gov: COOPERSBURG · MAY 2026

State

SAM.gov: PA · MAY 2026

Employees (band)

DOL: 20-99 · DEC 2024

Website

SAM.gov: https://shellbacksemi.com/ · MAY 2026

Year established

Company website: 1999 · AUG 2026

CAGE code

SAM.gov: 9KFY8 · MAY 2026

Retirement plan filing (Form 5500)

DOL: 93 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024

SAM registration expires

SAM.gov: 2027-05-06 · MAY 2026