- Jill Buckley and Associates1
- Jim Cox and Associates3
- Jim Jonas Media6
- Job Accommodation Network (U.S.)1
- Joe Shumate and Associates1
- Joe Slade White Communications, Inc.18
- Jofkp, John1
- John A. Svahn1
- John Engber Communications, Inc.6
- John Franzen Multimedia26
- John Reach Projects9
- Johnson, George W.1
- Johnson, Harold Terry, 1907-19882
- Johnson, Jackie Pualani1
- Johnson, Lady Bird, 1912-20076
- Johnson, Lyndon B. (Lyndon Baines), 1908-197365
- Johnson, Thoron A.3
- Johnson, U. Alexis (Ural Alexis), 1908-19971
- Johnson, Victor H.1
- Johnston, J. Bennett (John Bennett), 1932-1
