North American Industry Classification System (NAICS)
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| 518210 – Data Processing, Hosting, and Related Services |
| 541513 – Computer Facilities Management Services |
| 541612 – Human Resources Consulting Services |
| 541930 – Translation and Interpretation Services |
| 541990 – All Other Professional, Scientific, and Technical Services |
| 561110 – Office Administrative Services |
| 561210 – Facilities Support Services |
| 561320 – Temporary Help Services |
| 611420 – Computer Training |
| 611430 – Professional and Management Development Training |
| 611519 – Other Technical and Trade Schools |
| 611630 – Language Schools |
| 611699 – All Other Miscellaneous Schools and Instruction |
| 611710 – Educational Support Services |
| 621112 – Offices of Physicians, Mental Health Specialists |
| 621320 – Offices of Optometrists |
| 621399 – Offices of All Other Miscellaneous Health Practitioners |
| 621511 – Medical Laboratories |
| 921190 – Other General Government Support |
| 923110 – Administration of Education Programs |
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