Staffing & Administrative Services

• 561320 – Temporary Help Services

• 561311 – Employment Placement Agencies

• 561312 – Executive Search Services

• 561110 – Office Administrative Services

Program & Project Management / Consulting

• 541611 – Administrative Management & General Management Consulting Services

• 541618 – Other Management Consulting Services

• 541612 – Human Resources Consulting Services

Information Technology & Engineering

• 541511 – Custom Computer Programming Services

• 541512 – Computer Systems Design Services

• 541513 – Computer Facilities Management Services

• 541519 – Other Computer Related Services

• 541330 – Engineering Services

Artificial Intelligence / Data Science

• 541715 – R&D in the Physical, Engineering, and Life Sciences

• 541720 – R&D in the Social Sciences and Humanities

• 518210 – Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services

• 541690 – Other Scientific and Technical Consulting Services

Business Process Improvement & Compliance

• 541614 – Process, Physical Distribution, and Logistics Consulting Services

• 541690 – Other Scientific and Technical Consulting