| 1 | JB | Helijet International, Inc. | ICAO: JBA, Callsign: Helijet, IATA Prefix: 613, Designator JB recalled by IATA. Name changed from Helijet Airways. | CDN | AVCODES |
| 2 | JB | Aeronaves del Norte, S.A. | | MEX | AVCODES |
| 3 | JB | British Caledonian Airways (Charter) Limited | ICAO: BCC, | GB | AVCODES |
| 4 | JB | Jungfraubahn | | CH | TRAFFIC |
| 5 | JB | Jungfraubahn | | CH | VKM |
| 6 | JBA | Helijet International, Inc. | IATA: JB, Callsign: Helijet, IATA Prefix: 613, Designator JB recalled by IATA. Name changed from Helijet Airways. | CDN | AVCODES |
| 7 | JBA | Helijet Airways | Callsign: Helijet, Name changed to Helijet International, Inc. | CDN | AVCODES |
| 8 | JBA | Helijet International, Inc. | Callsign: Helijet, Designator JB recalled by IATA. Name changed from Helijet Airways. | CDN | AVCODES |
| 9 | JBA | Helijet | IATA: JB | | ICAO1 |
| 10 | JBAC | JBA COMPANY | | | SCAC4 |
| 11 | JBAD | JBAD TRUCKING INC | | | SCAC4 |
| 12 | JBAI | J B TRANSPORT INC | | | SCAC4 |
| 13 | JBAJ | JIMENEZ BROS ART AND IRON WORKS INC | | | SCAC4 |
| 14 | JBAO | JAXZEN BROWN AND CO. | | | SCAC4 |
| 15 | JBAW | JETBLUE AIRWAYS (SEKO WORLDWIDE AGE | | | SCAC4 |
| 16 | JBAX | Estate of J.B. Atkins | 7/1935 | | NAKINA |
| 17 | JBBD | JESPERSEN BOAT BUILDERS | | | SCAC4 |
| 18 | JBBE | J B B EXPRESS INC | | | SCAC4 |
| 19 | JBBF | J BAR B FOODS | | | SCAC4 |
| 20 | JBBI | JOHNSON BROTHERS BROKERAGE INC | | | SCAC4 |
| 21 | JBBS | JABBUSCH, S TRANSPORT LTD | | | SCAC4 |
| 22 | JBBX | James B. Berry Sons' Co., Inc. | 1/1941 | | NAKINA |
| 23 | JBBX | James B. Berry's Sons Co. | 8/1920-4/1938 | | NAKINA |
| 24 | JBBX | James B. Berry Sons' Co., Inc. | Apr-38 | | NRHS |
| 25 | JBBX | JAMES B. BERRY SONS CO. INC. | | | PWRC |
| 26 | JBC | Jetbee Czech s.r.o. | Callsign: Jetbee, Name changed from Praga Aviation S.r.o. ICAO designator changed from PGG. | CZ | AVCODES |
| 27 | JBCC | JOSH BULK CARRIERS INC | | | SCAC4 |
| 28 | JBCG | JB CARTAGE INC | | | SCAC4 |
| 29 | JBCI | JBC TRANSPORTATION INC | | | SCAC4 |
| 30 | JBCK | J & B TRUCKING | | | SCAC4 |
| 31 | JBCN | J B C INC | | | SCAC4 |
| 32 | JBCP | JBC TRANSPORT GROUP LLC | | | SCAC4 |
| 33 | JBCQ | J B C TRANSPORT INC | | | SCAC4 |
| 34 | JBCU | JACK B KELLEY INC | | | SCAC4 |
| 35 | JBCX | James B. Clow & Sons | 7/1930-7/1932; 7/1937 (not listed); 4/1938-1/1952 | | NAKINA |
| 36 | JBCX | James B. Clow & Sons | 4/38-1/52 | | NRHS |
| 37 | JBCX | JAMES B. CLOW & SONS | | | PWRC |
| 38 | JBCZ | JACK BEAN CO. | | | PWRC |
| 39 | JBD | Jetbird Limited | Callsign: Smartbird, | IRL | AVCODES |
| 40 | JBDL | JBS CARRIERS INC (LOGISTICS) | | | SCAC4 |
| 41 | JBDN | JBS DISTRIBUTION | | | SCAC4 |
| 42 | JBDT | JOHNSON, BRAD D TRUCKING INC | | | SCAC4 |
| 43 | JBE | Jet Bear Co., Ltd | Callsign: Jet Bear, Name changed to Sinojet (Beijing) Co., Ltd. | PRC | AVCODES |
| 44 | JBE | Sinojet (Beijing) Co., Ltd | Callsign: Sino Beijing, Name changed from Jet Bear Co., Ltd | PRC | AVCODES |
| 45 | JBEB | J & B EQUIPMENT CO | | | SCAC4 |
| 46 | JBEC | JORDAN, B E TRUCKING | | | SCAC4 |
| 47 | JBED | JBS EXPEDITE LTD | | | SCAC4 |
| 48 | JBEE | J & B EXPRESS LLC | | | SCAC4 |
| 49 | JBEI | J B EXPRESS INC | | | SCAC4 |
| 50 | JBER | JG ET R BOUDREAULT INC | | | SCAC4 |
| 51 | JBFE | JBF EXPRESS INC | | | SCAC4 |
| 52 | JBFM | JBF MACHINERY MOVERS & HAULAGE LTD | | | SCAC4 |
| 53 | JBFP | JB FREIGHT TRANSPORT | | | SCAC4 |
| 54 | JBFR | JUBENVILLE FISHERIES INC | | | SCAC4 |
| 55 | JBGH | JOHNSON BROS GRAIN HAULING | | | SCAC4 |
| 56 | JBGL | J B G TRANSPORTATION LLC | | | SCAC4 |
| 57 | JBGT | JBURGOS TRANSPORT LLC | | | SCAC4 |
| 58 | JBHC | JESUIT BEND HELICOPTERS LLC | | | SCAC4 |
| 59 | JBHG | JB HAULING LLC | | | SCAC4 |
| 60 | JBHI | JOINT BROTHERS TRANSPORT INC | | | SCAC4 |
| 61 | JBHT | JBH TRUCKING INC | | | SCAC4 |
| 62 | JBHU | J. B. HUNT TRANSPORT, INC. CONTAINERS | | | PWRC |
| 63 | JBHU | J. B. Hunt Transport | | | RSRV |
| 64 | JBHU | J.B. HUNT TRANSPORT | | | SCAC4 |
| 65 | JBHX | JOHN BROWN HARRIS | | | PWRC |
| 66 | JBHZ | J. B. HUNT TRANSPORT, INC. VANS & CHASSIS | | | PWRC |
| 67 | JBHZ | J. B. Hunt Transport | | | RSRV |
| 68 | JBHZ | J B HUNT TRANSPORT INC | | | SCAC4 |
| 69 | JBHZ | J. B. Hunt Transport Inc. | | USA | TRAFFIC |
| 70 | JBIH | JEBSENS INTERNATIONAL HOLDINGS A/S | | | SCAC4 |
| 71 | JBIN | J B INDUSTRIES | | | SCAC4 |
| 72 | JBIQ | JBI INC | | | SCAC4 |
| 73 | JBIX | Tank Car Services, Inc. | added 1/1981; eliminated 1/1986 | | NAKINA |
| 74 | JBIX | Jimbetco, Inc. | added 1/1980; 1/1980; eliminated 1/1981 | | NAKINA |
| 75 | JBIX | Jimbetco, Inc. | added 1/80; 1/80; eliminated 1/81 | | NRHS |
| 76 | JBIX | Tank Car Services, Inc. | added 1/81; eliminated 1/86 | | NRHS |
| 77 | JBIX | TANK CAR SERVICES, INC. {JIMBETCO, INC.} | | | PWRC |
| 78 | JBJB | J B J BROKERAGE INC | | | SCAC4 |
| 79 | JBJR | JBJ TRUCKING | | | SCAC4 |
| 80 | JBJT | J B J TRANSFER INC | | | SCAC4 |
| 81 | JBKC | JARDEN BROTHERS TRUCKING INC | | | SCAC4 |
| 82 | JBKG | J & B TRUCKING | | | SCAC4 |
| 83 | JBKI | J & B TRUCKING | | | SCAC4 |
| 84 | JBKK | J B TRUCKING OF KALKASKA | | | SCAC4 |
| 85 | JBKO | JACOBSON, BILL TRUCKING CO INC | | | SCAC4 |
| 86 | JBKQ | J & B TRUCKING INC | | | SCAC4 |
| 87 | JBKU | SPECIALTY TRAILER LEASING INC | | USA | BIC |
| 88 | JBKU | Specialty Trailer Leasing | | | RSRV |
| 89 | JBL | Jamaica Bus Lines | | USA | TRAFFIC |
| 90 | JBLA | J B LAND-TRUCKING | | | SCAC4 |
| 91 | JBLD | JORDAN BROTHERS LOGISTICS | | | SCAC4 |
| 92 | JBLE | JUBILEE TRANSPORT INC | | | SCAC4 |
| 93 | JBLG | J & B LEASING INC | | | SCAC4 |
| 94 | JBLI | J & B LOGISTICS INC | | | SCAC4 |
| 95 | JBLR | JENSEN BROS LOGISTICS LTD | | | SCAC4 |
| 96 | JBLV | J B LIVESTOCK | | | SCAC4 |
| 97 | JBLY | JAY-BEE LOGISTICS COMPANY | | | SCAC4 |
| 98 | JBMF | JBM TRANSPORT | | | SCAC4 |
| 99 | JBMH | JBM HOLDINGS LTD | | | SCAC4 |
| 100 | JBMI | JACOBS TRANSPORTATION INC | | | SCAC4 |
