TEI Electrical Solutions is qualified to provide services under the following North American Industry Classification (NAICS) categories:
- 238990 - All Other Specialty Trade Contractors
- 561210 - Facilities Support Services
- 238210 - Electrical Contractors
- 236220 - Commercial & Industrial Building Construction
- 236210 - Industrial Building Construction
- 561621 - (Security) Fire Alarm Sales Combined With Installation
- 238210 - Security & Fire System Installation Only
- 423610 - Electrical Apparatus & Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
- 517110 - Wired Telecommunication Carriers