Electro Switch CORP.
Doing business as Electro Switch CORP
At a glance
EmployeesNot reported
In business since1946
HeadquartersWeymouth, MA
US patents7
SAM.gov UEIN9H8MCLMH8J5
CAGE code82121
Incorporated inDE
- relays
- switches
- military
- substation battery monitors
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
Certifications
UL Listed
Patents
7 US patents granted 1977–1994, none of them in the five years to SEP 2025.
Electrical machinery, apparatus, energy 7
- Tagging relayUS 5,321,376 · granted JUN 14, 1994
- Lock-out relay with adjustable trip coilUS 4,399,421 · granted AUG 16, 1983
- Latching switch relayUS 4,255,733 · granted MAR 10, 1981
- Selector switch relayUS 4,137,439 · granted JAN 30, 1979
- Control switch relay and control circuit meansUS 4,133,020 · granted JAN 2, 1979
Newest 5 shown · Granted to Electro Switch Corp. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Electro Switch CORP. | Weymouth | MA | — | LIKELY 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.