| Restaurants and Other Eating Places | 1,114,212 | 
| Elementary and Secondary Schools | 907,120 | 
| General Medical and Surgical Hospitals | 366,258 | 
| Employment Services | 307,879 | 
| Computer Systems Design and Related Services | 286,290 | 
| Offices of Physicians | 280,081 | 
| Home Health Care Services | 268,979 | 
| Colleges, Universities, and Professional Schools | 261,966 | 
| Grocery and Convenience Retailers | 256,778 | 
| Building Equipment Contractors | 241,010 | 
| Justice, Public Order, and Safety Activities | 230,561 | 
| Warehouse Clubs, Supercenters, and Other General Merchandise Retailers | 202,017 | 
| Management, Scientific, and Technical Consulting Services | 198,435 | 
| Architectural, Engineering, and Related Services | 193,265 | 
| Depository Credit Intermediation | 190,328 | 
| Services to Buildings and Dwellings | 188,541 | 
| Management of Companies and Enterprises | 182,799 | 
| Warehousing and Storage | 169,689 | 
| Individual and Family Services | 164,331 | 
| Agencies, Brokerages, and Other Insurance Related Activities | 141,782 |