Proportion Air INC
At a glance
Employees20-99
In business since1985
HeadquartersMccordsville, IN
US patents6
SAM.gov UEITDTSCJQCXUX6
CAGE code0DGU6
Incorporated inIN
Brands
EPR_420x280_B2
BD4_Assembly_420x280_BThis company sells these brands.
- electronic pressure
- regulators
- valves
- transducers
- electro-pneumatic systems
- laboratory equipment
- aerospace
- food processing
- medical
- pharmaceutical
- plastics manufacturing
- semiconductor
Named on the company’s own website, read JUL 29, 2026
CareersCareers page — seen SEP 8, 2026
Supplier designations
For Profit OrganizationManufacturer of Goods
Self-certified by the company in its SAM.gov registration
Patents
6 US patents granted 2009–2025, 1 of them in the five years to SEP 2025.
Engines, pumps, turbines 4Medical technology 1Control 1
- System for dispensing fluidUS 12,268,840 · granted APR 8, 2025
- Control system for an air operated diaphragm pumpUS 9,574,554 · granted FEB 21, 2017
- Spring controlled valveUS 9,535,428 · granted JAN 3, 2017
- Control system for an air operated diaphragm pumpUS 8,292,600 · granted OCT 23, 2012
- Method and control system for a pumpUS 7,658,598 · granted FEB 9, 2010
Newest 5 shown · Granted to Proportion-Air, Inc · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plants
2 FACILITIES| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Proportion-Air, Inc. - South | Gulf Breeze | FL | 1–19 | LIKELY ACTIVE |
| Proportion Air INC | Mccordsville | IN | 20–99 | ACTIVE |
Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.