SRV-941-00 equipment maintenance and related services for power generation and transmission equipment.
SRV-915 Communications and Media related services.
IND-840-00 Television Equipment and accessories.
IND-730-00 Radio Communication and telecommunication Testing, measuring, and analyzing equipment accessories and supplies.
IND-625-00 Optical Equipment accessories and supplies.
IND-280-00 Electrical Cables and wire, noit electronic.
4911 Electrical Power Distributions
1731 Electrical Contractors
5133 Other Telecommunications
7629 Communications Equipment repair
1623 Power and Communications line and related structures construction
517110 Wired Telecom Carriers
237130 Power and Communication line and related structures Construction.
238210 Electrical Contractors
517210 Wireless Construction Telecom (except Satellite)
517919 All other Telecom.