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Roncelli Plastics INC

330 W Duarte Rd, Monrovia, CA 91016

ACTIVELAST SEEN IN FEDERAL DATA OCT 2026 · 6 SOURCES

Operating signal within 12 months from two or more independent sources.

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Homepage of Roncelli Plastics INC
Their homepage, crawled AUG 2026

What they make

Machine Shops332710
  • plastics CNC machining
  • injection molding
  • welding
  • 3D printing
  • carbon CNC machining
  • metal CNC machining
  • stamping
  • aerospace
  • defense
  • space systems
  • medical

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

Where it is

34.13222, -118.00579 · CENSUS TIGER
COUNTY
METRO AREA
ON GOOGLE MAPS
STREET VIEW

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Mulgrew Aircraft Components, INC.MonroviaHardware Manufacturing
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Eksakt Works INC.MonroviaMachine Shops
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Lintech Motion Control, INCMonroviaBall and Roller Bearing Manufacturing
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ACTIVE1.6 KM

Every listed plant in Los Angeles County

Also at this address

No other federal record shares this street address.

Where this record comes from

6 sources hold this plant, and 13 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 CA-ENVIROVIEW, RCRAINFO · EPA site type STATIONARY.

  • The company’s own websiteOPERATING
    first seen JUL 2026 · last seen OCT 2026
  • OSHA injury and illness reportsOPERATING
    Record 687041 · first seen DEC 2025 · last seen DEC 2025
  • SAM.gov entity registrationOPERATING
    Record H2AUFMH45K24 · first seen OCT 2025 · last seen OCT 2025
  • DOL Form 5500 retirement plan filingsOPERATING
    Record 952658203|CA|91016|330 w duarte rd · first seen MAR 2025 · last seen MAR 2025
  • SBA Paycheck Protection Program loan recordsEXISTENCE
    Record CA|monrovia|330 w duarte rd · first seen APR 2020 · last seen APR 2020
  • EPA Facility Registry ServiceEXISTENCE
    Record 110066004843 · first seen OCT 2015 · last seen OCT 2015

ALSO RECORDED ASRONCELLI PLASTICS

IN LOS ANGELES COUNTY478 other plants share this one’s industry (Machine Shops; Turned Product; and Screw, Nut, and Bolt Manufacturing, NAICS 3327); 148 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: RONCELLI PLASTICS · JUL 2026
SAM.gov: RONCELLI PLASTICS INC · OCT 2025 · ON THIS PAGE
Street address
EPA: 330 W DUARTE RD · JUL 2026 · ON THIS PAGE
SAM.gov: 330 W DUARTE RD · OCT 2025 · ON THIS PAGE
City
EPA: MONROVIA · JUL 2026 · ON THIS PAGE
SAM.gov: MONROVIA · OCT 2025 · ON THIS PAGE
State
EPA: CA · JUL 2026 · ON THIS PAGE
SAM.gov: CA · OCT 2025 · ON THIS PAGE
County (FIPS code)
EPA: 06037 · SEP 2026
Coordinates
EPA: 34.132222,-118.005787 · JUL 2026
Employees (band)
OSHA: 100-499 · DEC 2025
Website
SAM.gov: http://www.roncelli.com · OCT 2025
CAGE code
SAM.gov: 64328 · OCT 2025
Retirement plan filing (Form 5500)
DOL: 154 active participants, plan year ending 2025-03-31, 2 plan(s) · MAR 2025
PPP loan
SBA PPP: PPP loan x1, approved 2020-04-11, 141 jobs reported · APR 2020
SAM registration expires
SAM.gov: 2026-10-27 · OCT 2025
State business registration
TX Comptroller: RONCELLI PLASTICS INC, registered with the Texas Comptroller of Public Accounts; Corporation; active

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