Operating signal within 12 months from two or more independent sources.
What they make
All Other Plastics Product Manufacturing326199- machines
- material support engineering support parts
- finishing prototyping
- capabilities materials copper bronze aluminum
- aerospace
- medical
- parts finishing
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
Products
Where these came from
Open positions
Openings read from Tamshell Corporation’s own job board on ADP, last checked OCT 28, 2026. FactoryRegistry does not host applications — each title opens the posting where the company published it.
- CNC Machine Operators Day Shift & Swing Shiftposted JUN 4, 2021
- CNC Setup Day & Swing Shiftposted JUN 4, 2021
- CNC Swiss Setup/Swing Shiftposted JUN 4, 2021
CERTIFICATIONS — LISTED ON THE COMPANY’S WEBSITE
- AS9100
- ISO 13485
- ISO 9001
- ITAR registered
Read from this company’s own website on August 9, 2026. Nobody at the facility has confirmed it here, and FactoryRegistry has not verified these — unlike operating status, which comes from independent public records. A certificate can lapse without the website changing, so ask the facility for current ones.
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.
Where this record comes from
5 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.
EPA cross-references this facility in RCRAINFO · EPA site type STATIONARY.
- The company’s own websiteOPERATINGfirst seen JUL 2026 · last seen OCT 2026
- SAM.gov entity registrationOPERATINGRecord JJAUHFRSENV7 · first seen MAR 2026 · last seen OCT 2026
- OSHA injury and illness reportsOPERATINGRecord 345326 · first seen DEC 2025 · last seen DEC 2025
- DOL Form 5500 retirement plan filingsOPERATINGRecord 953536107|CA|92878|545 monica cir · first seen DEC 2024 · last seen DEC 2024
- EPA Facility Registry ServiceEXISTENCERecord 110071675671 · first seen APR 2024 · last seen APR 2024
ALSO RECORDED ASTAMSHELL CORP
IN RIVERSIDE COUNTY94 other plants share this one’s industry (Plastics Product Manufacturing, NAICS 3261); 23 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.
- NameSOURCES DISAGREE
- EPA: TAMSHELL CORP · JUL 2026
- SAM.gov: TAMSHELL CORPORATION · ON THIS PAGE
- Street addressSOURCES DISAGREE
- EPA: 545 MONICA CIRCLE · JUL 2026
- SAM.gov: 545 MONICA CIR · ON THIS PAGE
- City
- EPA: CORONA · JUL 2026 · ON THIS PAGE
- SAM.gov: CORONA · ON THIS PAGE
- State
- EPA: CA · JUL 2026 · ON THIS PAGE
- SAM.gov: CA · ON THIS PAGE
- County (FIPS code)
- EPA: 06065 · SEP 2026
- Employees (band)
- OSHA: 20-99 · DEC 2025
- Website
- SAM.gov: http://www.tamshell.com
- CAGE code
- SAM.gov: 1FJ94
- Retirement plan filing (Form 5500)
- DOL: 66 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024
- SAM registration expires
- SAM.gov: 2027-03-16