- Engineering services (11)
- Architectural services (4)
- Surveying services (3)
- Accounting, auditing, and bookkeeping (94)
- Commercial physical research (3)
- Commercial nonphysical research (1)
- Noncommercial research organizations (2)
- Management services (31)
- Management consulting services (56)
- Public relations services (6)
- Business consulting, nec (59)
