Porta-fab CORP
At a glance
Employees20-99
In business sinceNot reported
HeadquartersChesterfield, MO
US patents14
SAM.gov UEIFPARVAM4Z7Q1
CAGE code54951
Incorporated inMO
- prefabricated modular building systems
- interior applications
- offices
- cleanrooms
- enclosures
- framing systems
- climate control
- doors
- lighting
- wall panels
- windows
- ceiling
Named on the company’s own website, read JUL 29, 2026
CareersCareers page — seen SEP 8, 2026
Supplier designations
For Profit OrganizationSubchapter S Corporation
Self-certified by the company in its SAM.gov registration
Patents
14 US patents granted 1990–2025, 6 of them in the five years to SEP 2025, including 2 design patents.
Civil engineering 12
- Structural stud post with thermal breakUS 12,331,514 · granted JUN 17, 2025
- Modular ceiling systemUS 11,821,205 · granted NOV 21, 2023
- Structural stud post with thermal breakUS 11,808,033 · granted NOV 7, 2023
- Structural stud post with thermal breakUS 11,655,633 · granted MAY 23, 2023
- Modular ceiling systemUS 11,459,753 · granted OCT 4, 2022
Newest 5 shown · Granted to Porta-Fab Corporation · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Porta-fab CORP | Chesterfield | MO | 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.