Airport runway lighting contractors

Alarm system (e.g., fire, burglar), electric, installation only

Audio equipment installation (except automotive) contractors

Building automation system installation contractors

Burglar alarm system, electric, installation only

Cable splicing, electrical or fiber optic

Cable television hookup contractors

Communication equipment installation

Computer and network cable installation

Control system (e.g., environmental, humidity, temperature) installation

Electric contracting

Electric power control panel and outlet installation

Electrical contractors

Electrical equipment and appliance installation

Electrical wiring contractors

Electrical work

Electrical, electrical wiring, and low voltage electrical work

Electrician

Electronic containment fencing for pets, installation

Electronic control installation and service