US businesses ranked by employee size:

TOP SIX EMPLOYERS

1. Manpower, Inc--2,027,100
2. Wal-Mart--1,700,000
3. Printing and Communications Media, Inc.--757,149
4. Kelly Services, Inc.--708,400
5. Labor Ready, Inc.--602,900
6. McDonald's Corp.--438,000

Source: Dun & Bradstreet Business Rankings, 2006.