| 1 | RAI | Aerotur-Air | | | ICAO1 |
| 2 | RAI | Railion | | EU | TRAFFIC |
| 3 | RAI | Rahahan-e Djomhouri-e Eslami Iran - Iran Railways | | IR | VKM |
| 4 | RAIB | RAIBLE'S COMMERCIAL WAREHOUSE, INC | | | SCAC3 |
| 5 | RAIC | RAIL CONNECTION INC | | | SCAC3 |
| 6 | RAID | RAIDER TRUCK LINES INC | | | SCAC3 |
| 7 | RAIF | RAF INTERNATIONAL FORWARDING INC. | | | SCAC3 |
| 8 | RAIF | Raiffeisen Lagerhaus Hopfgarten - Wörgl und Umgebung reg. Gen. mbH | | AT | VKM |
| 9 | RAIG | RAILSBACK, GLENN, DUMP TRUCK AND TRACTOR SERVICE | | | SCAC3 |
| 10 | RAIG | RAILSBACK, GLEN DUMP TRUCK AND TRAC | | | SCAC4 |
| 11 | RAIH | RAIL HIGHWAY TRANSPORTATION INC | | | SCAC3 |
| 12 | RAII | R-A INDUSTRIES INC | | | SCAC3 |
| 13 | RAIJ | RAILEX | | | SCAC4 |
| 14 | RAIK | REIMER ALLIANCE INTERNATIONAL INC | | | SCAC4 |
| 15 | RAILIN | Rail in club Interlaken | | CH | TRAFFIC |
| 16 | Railion | Railion Danmark A/S | 2001 - 2009 | DK | jernbanen.dk |
| 17 | RAILL | Rolling Stock Lease s.r.o. | | SK | TRAFFIC |
| 18 | RAILM | Railmotion AG | | CH | VKM |
| 19 | RAILO | RAILOC S.R.L. | | IT | VKM |
| 20 | RAILP | Rail Polska Sp | | PL | TRAFFIC |
| 21 | RAILP | Rail Polska Sp. Z o.o | | PL | VKM |
| 22 | RAILPRO | voestalpine Railpro BV | | NL | TRAFFIC |
| 23 | RAILS | Railship | | CH | TRAFFIC |
| 24 | RAILS | Rail & Service | | DE | VKM |
| 25 | RAILT | Railtek Oy Insa | | FI | VKM |
| 26 | RAILU | Rail 4U-Eisenbahndienstleistungen | | DE | VKM |
| 27 | RAIM | RAIMO TRUCKING | | | SCAC3 |
| 28 | RAIO | RAYMERS EXPRESS INC | | | SCAC3 |
| 29 | RAIP | Railpromo | | NL | TRAFFIC |
| 30 | RAIQ | R A K EXPRESS INC | | | SCAC3 |
| 31 | RAIR | R P TRUCKING | | | SCAC3 |
| 32 | RAIT | RAI TRUCKING | | | SCAC4 |
| 33 | RAIU | RAINBOW CONTAINERS GMBH | | D | BIC |
| 34 | RAIU | RAIL SERVICES, INC. | | | SCAC3 |
| 35 | RAIU | RAINBOW CONTAINERS GMBH | | | SCAC4 |
| 36 | RAIV | RAISIN VALLEY INC | | | SCAC3 |
| 37 | RAIW | RAINWATER TRUCKING CO, INC | | | SCAC3 |
| 38 | RAIX | Union Carbide Corp., a Subsidiary of The Dow Chemical Co. U.S.A. | 7/2005 | | NAKINA |
| 39 | RAIX | Union Carbide Corp. | added 1/1995; added 4/1995; 7/2000 | | NAKINA |
| 40 | RAIX | Union Carbide Corp. | added 5/1983; eliminated 1/1993 | | NAKINA |
| 41 | RAIX | Union Carbide Chemicals and Plastics Co., Inc. | added 1/1993; 1/1994; eliminated 1/1995; eliminated 4/1995 | | NAKINA |
| 42 | RAIX | Union Carbide Corp., Chemicals and Plastics Division | added 10/1981; eliminated 5/1983 | | NAKINA |
| 43 | RAIX | United States Leasing International, Inc. | added 7/1970; 1/1975-1/1980; eliminated 10/1981 | | NAKINA |
| 44 | RAIX | United States Leasing International, Inc. | added 7/70; 1/75-1/80; eliminated 10/81 | | NRHS |
| 45 | RAIX | Union Carbide Corp., Chemicals and Plastics Division | added 10/81; eliminated 5/83 | | NRHS |
| 46 | RAIX | Union Carbide Corp. | added 5/83; eliminated 1/93 | | NRHS |
| 47 | RAIX | Union Carbide Chemicals and Plastics Co., Inc. | added 1/93; 1/94; eliminated 1/95; eliminated 4/95 | | NRHS |
| 48 | RAIX | Union Carbide Corp. | added 1/95; added 4/95; 7/2000 | | NRHS |
| 49 | RAIX | *UNITED STATES LEASING INTERNATIONAL, INC. | | | PWRC |
| 50 | RAIX | *RAILTRAN | | | PWRC |
| 51 | RAIX | +(UCFX) UNION CARBIDE CORP., SUBSIDIARY OF DOW CHEMICAL CO. USA | | | PWRC |
| 52 | RAIX | Union Carbide | | | RSRV |
| 53 | RAIX | UNION CARBIDE CORPORATION (A SUBSID | | | SCAC4 |
