| 1 | NLE | Northern Air Services | Callsign: Northern, | ZA | AVCODES |
| 2 | NLE | Boston-Maine Airways d/b/a FAA William J. Hughes Technical Center Shuttle | Callsign: Nellie, | USA | AVCODES |
| 3 | NLE | National Airlines | Callsign: Silver Streak, | USA | AVCODES |
| 4 | NLE | Niederlausitzer Eisenbahn | | D | TRAFFIC |
| 5 | NLEA | NATIONAL LTL EXPRESS CORP | | | SCAC4 |
| 6 | NLEC | NATIONAL LEASE CORP | | | SCAC3 |
| 7 | NLEI | NELSON EXPRESS INC | | | SCAC3 |
| 8 | NLEN | NILSON CO | | | SCAC3 |
| 9 | NLEP | NOEL EXPRESS | | | SCAC3 |
| 10 | NLEP | NORTHERN LIGHTS EXPEDITIONS LTD | | | SCAC4 |
| 11 | NLEQ | NATIONAL EQUIPMENT SERVICES L C | | | SCAC4 |
| 12 | NLER | NELSON, LEROY | | | SCAC4 |
| 13 | NLET | NELSON EXCAVATING AND TRUCKING | | | SCAC3 |
