Operating signal within 12 months from two or more independent sources.
What they make
Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables334513Proportion-Air manufactures proportional electro-pneumatic pressure and flow control products, including electronic pressure regulators, mechanical pressure regulators, mass flow controllers, pressure transducers, and electro-pneumatic systems. The company serves aerospace, converting, custom machinery, dispensing, food processing and packaging, glass manufacturing, laser, rubber manufacturing, semiconductor, spraying, medical and dental, metal industries, microfluidics, pharmaceutical, plastics manufacturing, process control, pulp and paper, and test and analysis industries. The text names FM Approved as a certification for hazardous location valves.
SUMMARIZED FROM THE COMPANY’S OWN WEBSITE
Products
Where these came from
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Empro Manufacturing Company Incorporated | Lawrence | Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals 334515 | UNVERIFIED | 6.3 KM |
| Pacer Digital Systems INC | Indianapolis | Other Electronic Component Manufacturing 334419 | LIKELY ACTIVE | 9.4 KM |
| Blue Delta Technologies, LLC | Indianapolis | Office Supplies (except Paper) Manufacturing 339940 | ACTIVE | 9.8 KM |
| Roche Diagnostics Operations INC. | Indianapolis | In-Vitro Diagnostic Substance Manufacturing 325413 | REPORTED CLOSED | 9.8 KM |
| Nanosonics INC | Indianapolis | Electromedical and Electrotherapeutic Apparatus Manufacturing 334510 | ACTIVE | 10.5 KM |
Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 4 FEDERAL SOURCES, 10 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.
EPA cross-references this facility in OSHA-OIS.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| COMPANY SITE | OPERATING | JUL 2026 | AUG 2026 |
| SAM GOV | OPERATING | FEB 2026 | FEB 2026 |
| OSHA ITA | OPERATING | DEC 2025 | DEC 2025 |
| EPA FRS | EXISTENCE | SEP 2018 | SEP 2018 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | EPA FRS | JUL 2026 |
| ADDRESS LINE1 | SAM GOV | FEB 2026 |
| CAGE CODE | SAM GOV | FEB 2026 |
| CITY | EPA FRS | JUL 2026 |
| CITY | SAM GOV | FEB 2026 |
| EMPLOYEE BAND | OSHA ITA | DEC 2025 |
| GEOM | EPA FRS | JUL 2026 |
| NAME | EPA FRS | JUL 2026 |
| NAME | SAM GOV | FEB 2026 |
| REGISTRATION EXPIRATION | SAM GOV | FEB 2026 |
| STATE | EPA FRS | JUL 2026 |
| STATE | SAM GOV | FEB 2026 |
| WEBSITE | SAM GOV | FEB 2026 |
| YEAR ESTABLISHED | SITE YEAR | AUG 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.