National Telephone Supply CO
At a glance
Employees20-99
In business sinceNot reported
HeadquartersCleveland, OH
US patents12
SAM.gov UEIQ4FHD36BFDZ3
CAGE code76691
Incorporated inOH
Brands
This company sells these brands.
- wire rope
- synthetic/fiber rope
- connectors
- compression products
- tools
- dies
- compression technology
- tracer wire
- power distribution
- medical
- entertainment rigging
Named on the company’s own website, read JUL 29, 2026
Supplier designations
For Profit OrganizationManufacturer of Goods
Self-certified by the company in its SAM.gov registration
Patents
12 US patents granted 1978–2023, 2 of them in the five years to SEP 2025, including 2 design patents.
Mechanical elements 5Electrical machinery, apparatus, energy 4Machine tools 1
- High strength single screw rope terminator connectorUS 11,739,812 · granted AUG 29, 2023
- High strength single screw rope terminator connectorUS 11,111,627 · granted SEP 7, 2021
- Crimp sleeveUS 10,468,785 · granted NOV 5, 2019
- Connector for synthetic and coated wire ropeUS 9,869,368 · granted JAN 16, 2018
- Compound wire rope cutterUS 9,833,847 · granted DEC 5, 2017
Newest 5 shown · Granted to The National Telephone Supply Company · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| National Telephone Supply CO | Cleveland | OH | 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.