N.A.I.C.S Codes
| CODE | DESCRIPTION | SIC |
| Primary: | ||
| 56121 | Facilities Support Services | 8744 |
| Secondary: | ||
| 51421 | Data Processing Services | 7379/7389 |
| 541211 | Accounting, Tax Preparation, Bookkeeping, and Payroll Services | 8721 |
| 541219 | Other Accounting Services | 8721 |
| 54133 | Engineering Services | 8711 |
| 541511 | Custom Computer Programming Services | 7371 |
| 541512 | Computer Systems Design Services | 7373 |
| 541513 | Computer Facilities Management Services | 7376 |
| 541611 | Administrative Management and General Management Consulting Services | 8742 |
| 541613 | Marketing Consulting Services | 8742 |
| 541618 | Other Management Consulting Services | 8748 |
| 56111 | Office Administrative Services | 8741 |
| 56141 | Document Preparation Services | 7338 |
| 811212 | Computer and Office Machine Repair and Maintenance | 7378 |
| Others: | ||
| 51114, 514191, 514199, 541612, 54182, 54186, 561492, 61171, 62311, 81299 | ||