Preston Industries INC
At a glance
Employees100-499
In business sinceNot reported
HeadquartersNiles, IL
US patents8
SAM.gov UEIDK6JE9D6QB15
CAGE code58378
Incorporated inIL
- liquid temperature control solutions
- circulating baths
- temperature controllers
- chillers
- coolers
- chemical
- medical
- plastics
- botanical extraction markets
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
8 US patents granted 1989–2024, 2 of them in the five years to SEP 2025, including 1 design patent.
Chemical engineering 3Measurement 2Thermal processes and apparatus 1Furniture, games 1
- Method and assembly for a wireless probe and interrogatorUS 11,885,691 · granted JAN 30, 2024
- Refrigeration chiller or cooler system with self-cleaning filterUS 11,378,312 · granted JUL 5, 2022
- Self-test system for qualifying refrigeration chiller system performanceUS 10,684,616 · granted JUN 16, 2020
- Movable constant temperature circulator assemblyUS 8,616,268 · granted DEC 31, 2013
- Constant temperature circulatorUS D693446 · granted NOV 12, 2013
Newest 5 shown · Granted to Preston Industries, Inc. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Preston Industries INC | Niles | IL | 100–499 | 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.