| 1 | KRS | Kyrgyz International Airlines | IATA: N5, Callsign: Kyrmal, IATA Prefix: 987, ICAO designator changed to KYL | KS | AVCODES |
| 2 | KRS | Korsar | Callsign: Korsar Avia, | RUS | AVCODES |
| 3 | KRS | Rosen Aviation Inc | | J | AVCODES |
| 4 | KRS | Air Company Course-S | Callsign: Atlas, | RUS | AVCODES |
| 5 | KRSA | KRITSAS SHIPPING S A | | | SCAC3 |
| 6 | KRSA | KRISTIS ANTIQUES INC | | | SCAC4 |
| 7 | KRSC | KRAMMER M STORAGE CORP | | | SCAC3 |
| 8 | KRSE | KIRSCH ENTERPRISES | | | SCAC3 |
| 9 | KRSF | KRASDALE FOOD INC | | | SCAC3 |
| 10 | KRSG | KROSSNES SHIPPING INC | | | SCAC3 |
| 11 | KRSK | KRISKA TRANSPORTATION | | | SCAC4 |
| 12 | KRSL | KRASILOVSKY, MILTON, INC | | | SCAC3 |
| 13 | KRSL | KASCHPER RACING SHELLS LTD | | | SCAC4 |
| 14 | KRSM | KRIST OIL COMPANY | | | SCAC4 |
| 15 | KRSN | K R S TRUCKING CORPORATION | | | SCAC3 |
| 16 | KRSN | KRUSE NATIONWIDE INC | | | SCAC4 |
| 17 | KRSP | Kronospan Sebes | | RO | TRAFFIC |
| 18 | KRSQ | KERST TRUCKING | | | SCAC3 |
| 19 | KRSR | KROSS ROADS TRANSPORTATION OF IDAHO | | | SCAC3 |
| 20 | KRSR | KRS TRANSPORT LTD | | | SCAC4 |
| 21 | KRSS | KRAUSS LEASING INC | | | SCAC3 |
| 22 | KRST | KARS TRANSPORT INC | | | SCAC3 |
| 23 | KRSU | {LLP "KRASPROM"};ZIPCODE=656011 | | RUS | BIC |
| 24 | KRSV | KREST SERVICE | | | SCAC3 |
| 25 | KRSX | Kurguz Enterprises Inc. d/b/a Kurguz Railway Services | 7/2005 (not listed) | | NAKINA |
| 26 | KRSX | *KAYEN RAIL CAR SERVICE INC. | | | PWRC |
| 27 | KRSX | +KURGUZ ENTERPRISES, INC d/b/a KURGUZ RAILWAY SERVICES | | | PWRC |
| 28 | KRSX | Kurguz Railway Services | | | RSRV |
| 29 | KRSX | KURGUZ RAILWAY SERVICES | | | SCAC4 |
