Ralph H. Simpson Company
733 Industrial Dr, Elmhurst, IL 60126
LIKELY ACTIVELAST SEEN IN FEDERAL DATA DEC 2025 · 1 SOURCE
Operating signal within 24 months, or from a single source.
What they make
Ornamental and Architectural Metal Work Manufacturing332323Where it is
41.92178, -87.94619 · CENSUS TIGER
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Chicago Doorways LLC | Elmhurst | Metal Window and Door Manufacturing 332321 | ACTIVE | 0.8 KM |
| Midwest Industrial Metals | Northlake | Sheet Metal Work Manufacturing 332322 | UNVERIFIED | 2.3 KM |
| Classic Sheet Metal, INC. | Franklin Park | Sheet Metal Work Manufacturing 332322 | UNVERIFIED | 3.4 KM |
| Aero Apmc INC | Franklin Park | Machine Shops 332710 | LIKELY ACTIVE | 3.6 KM |
| Metal Box International INC | Franklin Park | Metal Crown, Closure, and Other Metal Stamping (except Automotive) 332119 | UNVERIFIED | 3.4 KM |
Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 1 FEDERAL SOURCE, 2 FIELDS
Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| OSHA ITA | OPERATING | DEC 2025 | DEC 2025 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| EMPLOYEE BAND | OSHA ITA | DEC 2025 |
| GEOM | CENSUS GEOCODER | JUL 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.