- Jellico (252 Companies)
- Joelton (390 Companies)
- Johnson City (10,160 Companies)
- Jonesborough (1,187 Companies)
- Kelso (19 Companies)
- Kenton (159 Companies)
- Kimball (52 Companies)
- Kingsport (8,047 Companies)
- Kingston (849 Companies)
- Kingston Springs (282 Companies)
- Knoxville (35,733 Companies)
- Kodak (498 Companies)
- Kyles Ford (6 Companies)
- La Follette (1,178 Companies)
- La Grange (4 Companies)
- La Vergne (1,756 Companies)
- Lafayette (1,159 Companies)
- Lafollette (6 Companies)
- Lake City (52 Companies)
- Lakeland (99 Companies)
- Lancaster (12 Companies)
- Lancing (58 Companies)
- Lascassas (95 Companies)
- Laurel Bloomery (17 Companies)
- Lavinia (23 Companies)
- Lawrenceburg (2,098 Companies)
- Lebanon (4,810 Companies)
- Lenoir City (2,092 Companies)
- Lenox (2 Companies)
- Leoma (191 Companies)
- Lewisburg (1,622 Companies)
- Lexington (2,009 Companies)
