Southwest Electric CO.
At a glance
Employees100-499
In business sinceNot reported
HeadquartersOklahoma City, OK
US patents12
SAM.gov UEIE9YJZH4KZ789
CAGE code1MGQ4
Incorporated inOK
- transformers
- industrial motors
- field services
- became part
- SGB-SMIT Group
Named on the company’s own website, read JUL 29, 2026
CareersCareers page — seen SEP 8, 2026
Supplier designations
For Profit OrganizationManufacturer of GoodsSubchapter S Corporation
Self-certified by the company in its SAM.gov registration
Patents
12 US patents granted 1976–2025, 1 of them in the five years to SEP 2025.
Electrical machinery, apparatus, energy 11Measurement 1
- Three-phase multi-tap balancing distribution transformerUS 12,260,985 · granted MAR 25, 2025
- Transformer, system and method to control harmonic distortionUS 6,169,674 · granted JAN 2, 2001
- Motor control system and apparatus for providing desired three-phase voltage therein using a main transformer energized through an autotransformerUS 5,449,991 · granted SEP 12, 1995
- Control of multiple motors, including motorized pumping system and methodUS 5,422,550 · granted JUN 6, 1995
- Motor control system and components thereofUS 5,322,971 · granted JUN 21, 1994
Newest 5 shown · Granted to Southwest Electric Co. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Southwest Electric CO. | Oklahoma City | OK | 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.