| 1 | LLC | Lankalink Aircargo (Pvt) Ltd. | Callsign: Lankalink, | CL | AVCODES |
| 2 | LLC | FlyLAL Charters JSC | Callsign: flyLAL Charters, Name changed to Small Planet Airlines AS. during 2012. Part of the Avia Solutions Group. | LT | AVCODES |
| 3 | LLC | Small Planet Airlines AS. | Callsign: Lima Lima Charley, Name changed from FlyLAL Charters JSC. Part of the Avia Solutions Group. | LT | AVCODES |
| 4 | LLC | Small Planet Airlines UAB | IATA: S5, Callsign: Small Planet, Ceased operations on 28 November 2018. | LT | AVCODES |
| 5 | LLCE | LANDIS LUXUARY COACHES | | | SCAC3 |
| 6 | LLCE | LOGIN LOGISTICS LTD | | | SCAC4 |
| 7 | LLCF | LEEK LOGISTICS CORPORATION | | | SCAC4 |
| 8 | LLCH | LIBERTY LOGISTICS LLC | | | SCAC4 |
| 9 | LLCI | LILCO INC | | | SCAC3 |
| 10 | LLCJ | LAYDEN LOGISTICS COMPANY INC | | | SCAC4 |
| 11 | LLCN | LELCO INC | | | SCAC3 |
| 12 | LLCO | L & L CONTRACTORS DELIVERY CORP | | | SCAC3 |
| 13 | LLCO | LUCIA LUMBER COMPANY INC | | | SCAC4 |
| 14 | LLCP | L & L CONTAINER CORP | | | SCAC3 |
| 15 | LLCQ | LOYALIST LOGISTICS CORPORATION | | | SCAC4 |
| 16 | LLCR | L & L CHARTER | | | SCAC3 |
| 17 | LLCS | LLAMAS CONSTRUCTION COMPANY | | | SCAC3 |
| 18 | LLCS | L & L CARRIERS | | | SCAC4 |
| 19 | LLCT | LONG LINE CORP, THE | | | SCAC3 |
| 20 | LLCW | LIVE LOBSTER CO INC | | | SCAC4 |
| 21 | LLCX | LLCX Inc. | added 10/1985; 1/1994-7/2005; eliminated 1/2009 | | NAKINA |
| 22 | LLCX | Lyon Lumber Co. | 8/1920 | | NAKINA |
| 23 | LLCX | LLCX Inc. | 1/94-7/2000 | | NRHS |
| 24 | LLCX | *LYON LUMBER CO. | | | PWRC |
| 25 | LLCX | +LLCX INCORPORATED | | | PWRC |
| 26 | LLCX | LLCX Inc. | | | RSRV |
| 27 | LLCY | LEE LUMBER COMPANY LLC | | | SCAC4 |
