- SPIKE Tool, Inc.
 - Safety device to prevent injury to linemen and cable maintenance personnel when cutting underground or hidden electrical power cables. - Utility Safeguard
- Marking paint and flags for locating utilities such as communications, telephone, electric power, gas, and water.
- One Call Locators
- Providing location services to customers in rural and urban environments.
- Emrad Limited
- Manufacturers of the Pipe Hawk, a ground penetrating radar, for the detection of all buried pipes and cables.
- So-Deep Inc
- Providing information to project designers and owners on the location of underground utilities.
- Marking Services Incorporated
- Supplier of mechanical and industrial identification products.
- Innovatum, Inc.
- Utilizes magnetization technology to detect buried pipes and cables.
- Premier Utility Locating
- Service providers for markouts, utility locating, vacuum excavations, GPR subsurface imaging, leak detection services, facility mapping, natural gas main and utility maintenance, audits, stray voltage surveys, and more.
- Unimark Systems
- Underground utility identification markers.
- Global GPR Services
- Uses non-destructive ground penetrating radar to locate PT cables, rebar, and conduits in concrete as well as utilities below ground.
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