- Electronic controls installation (1)
- Energy management controls (1)
- Communications specialization (2)
- Cable television installation (2)
- Fiber optic cable installation (2)
- Sound equipment specialization (2)
- Telephone and telephone equipment installation (2)
- Safety and security specialization (3)
- Access control systems specialization (2)
- Fire detection and burglar alarm systems specialization (2)
- General electrical contractor (24)
- Lighting contractor (2)