Operating signal within 12 months from two or more independent sources.
What they make
Sign Manufacturing339950Products
Recorded against the company rather than this address. Federal award and drug records name the company, not the plant, so we cannot say which of its sites makes these.
Where these came from
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Hsm of America LLC | Downingtown | Office Supplies (except Paper) Manufacturing 339940 | LIKELY ACTIVE | 0.7 KM |
| Ricoh USA INC | Exton | Electronic Computer Manufacturing 334111 | ACTIVE | 6.7 KM |
| Mba Design & Display Products Corporation | Exton | Showcase, Partition, Shelving, and Locker Manufacturing 337215 | ACTIVE | 7.2 KM |
| Penn Corsair LLC | Chester Springs | Motor Vehicle Brake System Manufacturing 336340 | ACTIVE | 9.5 KM |
| Effective Shielding Co, INC | West Chester | Gasket, Packing, and Sealing Device Manufacturing 339991 | ACTIVE | 9.5 KM |
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 OSHA-OIS.
- The company’s own websiteOPERATINGfirst seen JUL 2026 · last seen OCT 2026
- SAM.gov entity registrationOPERATINGRecord NAP5D8PSVX83 · first seen SEP 2025 · last seen SEP 2026
- OSHA injury and illness reportsOPERATINGRecord 1355563 · first seen DEC 2025 · last seen DEC 2025
- DOL Form 5500 retirement plan filingsOPERATINGRecord 231741447|PA|19335|251 boot rd · first seen JUN 2025 · last seen JUN 2025
- SBA Paycheck Protection Program loan recordsEXISTENCERecord PA|downingtown|251 boot rd · first seen APR 2021 · last seen APR 2021
- EPA Facility Registry ServiceEXISTENCERecord 110070297007 · first seen SEP 2018 · last seen SEP 2018
IN CHESTER COUNTY14 other plants share this one’s industry (Other Miscellaneous Manufacturing, NAICS 3399); 3 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: UPPER DARBY SIGN COMPANY · JUL 2026 · ON THIS PAGE
- SAM.gov: UPPER DARBY SIGN COMPANY · SEP 2026 · ON THIS PAGE
- Street addressSOURCES DISAGREE
- EPA: 251 BOOT ROAD · JUL 2026
- SAM.gov: 251 BOOT RD · SEP 2026 · ON THIS PAGE
- City
- EPA: DOWNINGTOWN · JUL 2026 · ON THIS PAGE
- SAM.gov: DOWNINGTOWN · SEP 2026 · ON THIS PAGE
- State
- EPA: PA · JUL 2026 · ON THIS PAGE
- SAM.gov: PA · SEP 2026 · ON THIS PAGE
- CoordinatesSOURCES DISAGREE
- Census geocoder: 40.001340783082,-75.698235999309 · JUL 2026 · ON THIS PAGE
- EPA: 40.00136,-75.69736 · JUL 2026
- Employees (band)
- OSHA: 20-99 · DEC 2025
- Website
- SAM.gov: https://www.prosign.net/contact-us/ · SEP 2026
- Year established
- Company website: 1947 · SEP 2026
- CAGE code
- SAM.gov: 87CD7 · SEP 2026
- Retirement plan filing (Form 5500)
- DOL: 80 active participants, plan year ending 2025-06-30, 3 plan(s) · JUN 2025
- PPP loan
- SBA PPP: PPP loan x2, approved 2021-04-08, 64 jobs reported · APR 2021
- SAM registration expires
- SAM.gov: 2027-09-18 · SEP 2026
- State business registrationSOURCES DISAGREE
- CO SOS: Upper Darby Sign Co., registered with the Colorado Secretary of State; Corporation formed in Pennsylvania; registered 2015-09-11; active, annual report filed 2024-04-25 · APR 2024
- Sunbiz: UPPER DARBY SIGN COMPANY, registered with the Florida Department of State, Division of Corporations; Corporation formed in Pennsylvania; registered 2011-09-20; revoked 2013-09-27 · SEP 2013
- NY DOS: UPPER DARBY SIGN COMPANY INC., registered with the New York Department of State, Division of Corporations; Corporation formed in Pennsylvania; registered 1999-07-21; active · JUL 1999
- TX Comptroller: UPPER DARBY SIGN COMPANY, registered with the Texas Comptroller of Public Accounts; Corporation; registered 2011-06-06; active · JUN 2011
- VA SCC: UPPER DARBY SIGN COMPANY, registered with the Virginia State Corporation Commission; Corporation formed in Pennsylvania; registered 2010-05-27; revoked 2013-09-30 · SEP 2013