Duffin Engine Service
1227 Hallmark Drive, San Antonio, TX 78216
Present in a source dataset, with no recent operating signal.
What they make
Machine Shops332710Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Jeff Bonner R & D, INC. | San Antonio | Other Aircraft Parts and Auxiliary Equipment Manufacturing 336413 | ACTIVE | 3.3 KM |
| Texas Toolmakers, INC. | San Antonio | Machine Shops 332710 | REPORTED CLOSED | 3.7 KM |
| Royberg INC | San Antonio | Industrial Mold Manufacturing 333511 | REPORTED CLOSED | 4.3 KM |
| San Antonio Machine Shop | San Antonio | Machine Shops 332710 | LIKELY ACTIVE | 7.4 KM |
| Dsa Operating Company LLC | San Antonio | Machine Shops 332710 | ACTIVE | 8.8 KM |
Also at this address
No other federal record shares this street address.
Where this record comes from
1 source holds this plant, and 5 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.
- EPA Facility Registry ServiceEXISTENCERecord 110070305032 · first seen SEP 2018 · last seen SEP 2018
IN BEXAR COUNTY20 other plants share this one’s industry (Machine Shops; Turned Product; and Screw, Nut, and Bolt Manufacturing, NAICS 3327); 11 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: DUFFIN ENGINE SERVICE · OCT 2026
- Street address
- EPA: 1227 HALLMARK DRIVE · OCT 2026
- City
- EPA: SAN ANTONIO · OCT 2026
- State
- EPA: TX · OCT 2026
- Coordinates
- EPA: 29.515853,-98.475954 · OCT 2026