| 1 | LAK | Lennox Airways | Callsign: Lennox, | EAK | AVCODES |
| 2 | LAK | Laker Airways | IATA: GK, Callsign: Laker, Ceased operations at 09:30 am on 05 February 1982. | GB | AVCODES |
| 3 | LAK | Red Wing Aeroplance Company | Callsign: Redlake, | USA | AVCODES |
| 4 | LAKB | LAK | | | SCAC4 |
| 5 | LAKC | LAKE CITY EXCURSION COMPANY | | | SCAC3 |
| 6 | LAKC | Lake Charter Bus Service | | US-NJ | TRAFFIC |
| 7 | LAKD | LAKELAND DELIVERY SERVICE INC | | | SCAC3 |
| 8 | LAKE | LAKE TRUCKING COMPANY | | | SCAC3 |
| 9 | LAKF | LAKE COUNTRY FARMS INC | | | SCAC3 |
| 10 | LAKH | LAKESHORE WAREHOUSE INC | | | SCAC3 |
| 11 | LAKI | LACKIE BROS LIMITED | | | SCAC3 |
| 12 | LAKI | LAVOKIKA 2000 INC | | | SCAC4 |
| 13 | LAKJ | LAKE STATE TRANSPORT INC | | | SCAC3 |
| 14 | LAKJ | LAKE STATE TRANSPORT INC | | | SCAC4 |
| 15 | LaKJ | Landskrona - Kävlinge Järnväg | 1893 - 1919 | S | svenska-lok.se |
| 16 | LAKK | LONE OAK TRUCKING | | | SCAC4 |
| 17 | LAKL | LAKONIA SHIPPING LTD | | | SCAC4 |
| 18 | LAKL | Lakeland Bus Lines | | USA | TRAFFIC |
| 19 | LAKN | LAKESIDE LEASING INC | | | SCAC3 |
| 20 | LAKO | LAURITZEN KOSAN A/S | | | SCAC4 |
| 21 | LAKQ | LAKE SHORE TRANSFER CO | | | SCAC3 |
| 22 | LAKS | LAKE STATES CARRIERS INC | | | SCAC3 |
| 23 | LAKS | LAKE SIDE LOGISTICS INC | | | SCAC4 |
| 24 | LAKT | LAKON TRANSPORTATION COMPANY, INC | | | SCAC3 |
| 25 | LAKU | CEYLON SHIPPING CORPORATION | | | SCAC3 |
| 26 | LAKW | LAKEWAY TRUCKING INC | | | SCAC3 |
| 27 | LAKW | LAKEWAY TRUCKING INC | | | SCAC4 |
| 28 | LAKX | City of Lakeland | added 7/1982; 1/1994-7/2005; eliminated 1/2008 | | NAKINA |
| 29 | LAKX | City of Lakeland | added 7/82; 1/94-7/2000 | | NRHS |
| 30 | LAKX | CITY OF LAKELAND | | | PWRC |
| 31 | LAKX | City of Lakeland | | | RSRV |
| 32 | LAKX | CITY OF LAKELAND | | | SCAC4 |
| 33 | LAKY | LES ALIMENTS KABEYA INTERNATIONAL | | | SCAC4 |
