Heidelberg Materials Downingtown HMA
850 Quarry Rd, Downingtown, PA 19335
Operating signal within 24 months, or from a single source.
What they make
Asphalt Paving Mixture and Block Manufacturing324121Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Ackworth Materials | Downingtown | Asphalt Paving Mixture and Block Manufacturing 324121 | LIKELY ACTIVE | 0.2 KM |
| Netzsch Pumps North America LLC | Exton | Pump and Compressor Manufacturing 333911 | ACTIVE | 6.1 KM |
| Heidelberg Materials Frazer HMA | Frazer | Asphalt Paving Mixture and Block Manufacturing 324121 | LIKELY ACTIVE | 13.0 KM |
| Highway Materials Malvern Plt | Frazer | Asphalt Paving Mixture and Block Manufacturing 324121 | LIKELY ACTIVE | 13.3 KM |
| Henry Co/kimberton Plt | Kimberton | Asphalt Shingle and Coating Materials Manufacturing 324122 | UNVERIFIED | 15.8 KM |
Also at this address
More than one federal record exists for this street address. The primary record for the site is listed first.
Where this record comes from
1 source holds this plant, and 2 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.
- OSHA injury and illness reportsOPERATINGRecord 1530808 · first seen DEC 2025 · last seen DEC 2025
IN CHESTER COUNTY10 other plants share this one’s industry (Petroleum and Coal Products Manufacturing, NAICS 3241); 1 of them has 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.
- Coordinates
- Census geocoder: 40.007258235687,-75.667946104271 · JUL 2026
- Employees (band)
- OSHA: 1-19 · DEC 2025