| 1 | KON | Bars | Callsign: Brala, | KZ | AVCODES |
| 2 | KON | Air Connect Aviation Group | IATA: KS, Callsign: Air Connect, Plans to launch flights with an ATR72-600 turboprop in May 2022. | RO | AVCODES |
| 3 | KONA | KONA TRANSPORTATION CO | | | SCAC3 |
| 4 | KONA | KONA TRANS | | | SCAC4 |
| 5 | KONAN | Konan Railway | | J | TRAFFIC |
| 6 | KONANB | Konan Bus Co. | | J | TRAFFIC |
| 7 | KONE | KONEASE CO S A | | | SCAC3 |
| 8 | KONE | K-1 INTERMODAL INC | | | SCAC4 |
| 9 | KONECT | Konectbus | | GB | TRAFFIC |
| 10 | KONG | KONGSBERG INTERIOR SYSTEMS S DE RL | | | SCAC4 |
| 11 | KONGOB | Kongo Bus | | J | TRAFFIC |
| 12 | KONK | KOLNIK, RAY TRUCKING | | | SCAC3 |
| 13 | KONK | KOLNIK TRUCKING INCORPORATED | | | SCAC4 |
| 14 | KONO | KONTOS, ALEX FRUIT CO INC | | | SCAC4 |
| 15 | KONR | KOENIG, RAY | | | SCAC3 |
| 16 | KONS | KORE ONSITE | | | SCAC4 |
| 17 | KONT | KOOKEN TRUCKING, INC | | | SCAC3 |
| 18 | KONT | KOOKEN TRUCKING INC | | | SCAC4 |
| 19 | KONU | KONTIX SP. Z O.O. | | PL | BIC |
| 20 | KONU | POLTON UNIVERSAL LLP | | | SCAC4 |
| 21 | KONV | KONVOY MARITIME LTD | | | SCAC4 |
