| 1 | JG | Airline Container Leasing, Inc. | Non-airline Unit Load Devices (ULD) companies | USA | AVCODES |
| 2 | JG | Swedair AB | ICAO: SWE, Callsign: Swedair, | S | AVCODES |
| 3 | JG | Air Fecteau Ltee | Merged with La Sarre Air Service to form Propair | CDN | AVCODES |
| 4 | JG | Business Jet Flight Center | Callsign: Bizjet, | DK | AVCODES |
| 5 | JG | Burnthills Aviation Ltd. | ICAO: BAV, Callsign: Burnthills, | GB | AVCODES |
| 6 | JG | Ligne Aérienne Seychelles | ICAO: LAS, | SY | AVCODES |
| 7 | JG | Jetgo Australia Holdings Pty Ltd. | ICAO: JGO, Callsign: Jetgo, Suspended operations on 01 June 2018. | AUS | AVCODES |
| 8 | JG | Jiangsu Jingdong Cargo Airlines Co., Ltd. | ICAO: JDL, Callsign: Jingdong, IATA Prefix: 619, JV between a subsidiary of JD.com and Nantong Airport Group. | PRC | AVCODES |
| 9 | JGA | Japan General Aviation Service Co., Ltd. | | J | AVCODES |
| 10 | JGAI | J G TRUCKING LLC | | | SCAC4 |
| 11 | JGAQ | J & G TRUCKING INC | | | SCAC4 |
| 12 | JGAR | JGAR TRANSPORT INC | | | SCAC4 |
| 13 | JGB | Aerolineas Jet Global, C.A. | Callsign: Jetglobal, | YV | AVCODES |
| 14 | JGBI | JUST GETTIN BY INC | | | SCAC4 |
| 15 | JGCE | JMG CARRIER LTD | | | SCAC4 |
| 16 | JGCT | JOHNSON, C & G TRUCKING INC | | | SCAC4 |
| 17 | JGD | Jet G & D Aviation | Callsign: Jet Gee-and-Dee, | IL | AVCODES |
| 18 | JGD | Jet G&D Aviation | | | ICAO1 |
| 19 | JGDL | J G D LOGISTIC SALES INC | | | SCAC4 |
| 20 | JGDX | JACKSON GORDONVILLE & DELTA RAILROAD | | | PWRC |
| 21 | JGEC | JUSTRIGHT GLOBAL ENTERPRISES LLC | | | SCAC4 |
| 22 | JGER | JAEGER SHIPPING LLC | | | SCAC4 |
| 23 | JGET | JGE TRANSPORT | | | SCAC4 |
| 24 | JGF | Chattanooga Jet Centre | Callsign: Chattanooga, ICAO Designator changed from DLB | USA | AVCODES |
| 25 | JGFG | J G FORGE S DE R L DE C V | | | SCAC4 |
| 26 | JGFO | J G FORWARDING | | | SCAC4 |
| 27 | JGFS | J G FLATBED SERVICE INC | | | SCAC4 |
| 28 | JGFT | J G F TRUCKING CO | | | SCAC4 |
| 29 | JGFU | JAPAN GROUND SELF DEFENSE FORCE | | J | BIC |
| 30 | JGGI | JANEL GROUP OF GEORGIA INC, THE | | | SCAC4 |
| 31 | JGHG | JAYS GRADING & HAULING | | | SCAC4 |
| 32 | JGHI | JGH II INC | | | SCAC4 |
| 33 | JGHT | JG HUNT EXPRESS LTD | | | SCAC4 |
| 34 | JGIC | JONES GROUP INC | | | SCAC4 |
| 35 | JGIL | JANEL GROUP OF ILLINOIS, THE | | | SCAC4 |
| 36 | JGIN | J G INTERNATIONAL FREIGHT CORPORATI | | | SCAC4 |
| 37 | JGJ | Jinggong Jet Co., Ltd. | Callsign: Global Jinggong, Name changed to Jinggog Globaljet (Zhejiang) Jet Co., Ltd. | PRC | AVCODES |
| 38 | JGJ | Jinggog Globaljet (Zhejiang) Jet Co., Ltd. | Callsign: Global Jinggong, Name changed from Jinggong Jet Co., Ltd. | PRC | AVCODES |
| 39 | JGKL | JAG TRUCKING LLC | | | SCAC4 |
| 40 | JGL | Jagson Airlines Limited | IATA: JA, Callsign: Jagson, | IND | AVCODES |
| 41 | JGL | Jagson Airlines Limited | Callsign: Jagson, Designator JA recalled by IATA. | IND | AVCODES |
| 42 | JGLA | JANEL GROUP OF LOS ANGELES INC, THE | | | SCAC4 |
| 43 | JGLL | J & G LOGISTICS LLC | | | SCAC4 |
| 44 | JGLO | JAGUAR LOGISTICS INC | | | SCAC4 |
| 45 | JGLS | J G LOGISTICS INC | | | SCAC4 |
| 46 | JGLT | JADORIA GROUP LTD | | | SCAC4 |
| 47 | JGLU | JUGLINIJA LINES | | | PWRC |
| 48 | JGLU | Juglinija Lines | | | RSRV |
| 49 | JGNY | JANEL GROUP OF NEW YORK INC, THE | | | SCAC4 |
| 50 | JGO | Jetsgo Corporation | IATA: SG, Callsign: Jetsgo, Ceased operations on 11 March 2005. | CDN | AVCODES |
| 51 | JGO | Jetgo Australia Holdings Pty Ltd. | IATA: JG, Callsign: Jetgo, Suspended operations on 01 June 2018. | AUS | AVCODES |
| 52 | JGO | JetsGo | IATA: SG | | ICAO1 |
| 53 | JGORA | MZK Jelenia Góra | | PL | TRAFFIC |
| 54 | JGPS | JEFFS GOURMET PIES | | | SCAC4 |
| 55 | JGPT | J & G PALLET LLC | | | SCAC4 |
| 56 | JGR | Japanese Government Railways | | J | TRAFFIC |
| 57 | JGRK | J G TRUCKING COMPANY | | | SCAC4 |
| 58 | JGRL | JAM GIL RELOCATION SYSTEMS LLC | | | SCAC4 |
| 59 | JGRN | JOHNSON & BAKER TRUCKING INC | | | SCAC4 |
| 60 | JGRO | JAGRO INC | | | SCAC4 |
| 61 | JGRP | JAGUAR TRANSPORT INC | | | SCAC4 |
| 62 | JGRU | JOHN G.RUSELL (TRANSPORT) LTD | | GB | BIC |
| 63 | JGRU | JOHN G. RUSSELL TRANSPORT LTD. | | | PWRC |
| 64 | JGRU | John G. Russell Transport | | | RSRV |
| 65 | JGRU | RUSSELL TRANSPORT LTD | | | SCAC3 |
| 66 | JGRU | JOHN G RUSELL (TRANSPORT) LTD | | | SCAC4 |
| 67 | JGRX | Graham Tank Line Co. | added 1/1959; eliminated 1/1960 | | NAKINA |
| 68 | JGRX | Graham Tank Line Co. | added 1/59; eliminated 1/60 | | NRHS |
| 69 | JGRX | GRAHAM TANK LINE CO. | | | PWRC |
| 70 | JGS | James Griffiths & Sons | 1/1975-1/1980 | | NAKINA |
| 71 | JGS | James Griffiths & Sons | 1/75-1/80 | | NRHS |
| 72 | JGS | JAMES GRIFFITHS & SONS | | | PWRC |
| 73 | JGS | James Griffiths and Sons | | | RSRV |
| 74 | JGSDF | Japanese Ground Self Defense Force | | J | TRAFFIC |
| 75 | JGSE | J G S EXPRESS INC | | | SCAC4 |
| 76 | JGSP | Javno Gradsko Saobraćajno Preduzeće Novi Sad | City: Novi Sad | SR | TRAFFIC |
| 77 | JGSPNS | The Public City Transport Enterprise of Novi Sad | City: Novi Sad | YU | TRAFFIC |
| 78 | JGSR | J G S TRANSPORTATION INC | | | SCAC4 |
| 79 | JGTA | JOLLY GOOD TRAP | | | SCAC4 |
| 80 | JGTB | J G TRANSPORT | | | SCAC4 |
| 81 | JGTC | J & G TRUCKING LLC | | | SCAC4 |
| 82 | JGTI | JAUREGUI TRUCKING LLC | | | SCAC4 |
| 83 | JGTJ | JG TRUCKING | | | SCAC4 |
| 84 | JGTL | JAG TRANSPORTATION AND LOGISTICS CO | | | SCAC4 |
| 85 | JGTM | JOFFROY GROUP TRANSPORTATION | | | SCAC4 |
| 86 | JGTN | JARG TRUCKING INC | | | SCAC4 |
| 87 | JGTP | J & G TOTAL TRUCKING LLC | | | SCAC4 |
| 88 | JGTQ | J & G TRANSPORT LLC | | | SCAC4 |
| 89 | JGTS | JAGIM TRANSPORTATION INC | | | SCAC4 |
| 90 | JGTT | JAEB, GARRY TRANSPORT INC | | | SCAC4 |
| 91 | JGTW | J & G TRANSPORT | | | SCAC4 |
| 92 | JGUR | JAGUAR TRUCKING INC | | | SCAC4 |
| 93 | JGUT | JG TRUCKING | | | SCAC4 |
| 94 | JGXI | JAGJOT EXPRESS INC | | | SCAC4 |
| 95 | JGXL | JAG TRANSPORT LLC | | | SCAC4 |
| 96 | JGXP | JG EXPRESS INC | | | SCAC4 |
