NAICS Code Name NAICS Exception Size Standard Small Business
- 513130 – Book Publishers
- 541214 – Payroll Services
- 541330 – Engineering Services
- 541330 – Military and Aerospace Equipment and Military Weapons
- 541330 – Contracts and Subcontracts for Engineering Services Awarded Under the National Energy Policy Act of 1992
- 541330 – Marine Engineering and Naval Architecture
- 541511 – Custom Computer Programming Services
- 541512 – Computer Systems Design Services
- 541513 – Computer Facilities Management Services
- 541519 – Information Technology Value Added Resellers
- 541611 – Administrative Management and General Management Consulting Services
- 541612 – Human Resources Consulting Services
- 541613 – Marketing Consulting Services
- 541614 – Process, Physical Distribution, and Logistics Consulting Services
- 541618 – Other Management Consulting Services
- 541690 – Other Scientific and Technical Consulting Services
- 541990 – All Other Professional, Scientific, and Technical Services
- 561110 – Office Administrative Services
- 561210 – Facilities Support Services
- 561320 – Temporary Help Services
- 561330 – Professional Employer Organizations
- 561499 – All Other Business Support Services
- 561990 – All Other Support Services
- 611420 – Computer Training
- 611430 – Professional and Management Development Training
- 611710 – Educational Support Services
- 624190 – Other Individual and Family Services