| 1 | HOL | Holiday Airlines, Inc. | Callsign: Holiday, | USA | AVCODES |
| 2 | HOL | Holiday Airlines | | | ICAO1 |
| 3 | HOLA | HOLIDAY TRUCKING L L C | | | SCAC4 |
| 4 | HOLB | Hollinger Bus Lines | | CDN | TRAFFIC |
| 5 | HOLC | HEATWAVE OIL LLC | | | SCAC4 |
| 6 | HOLCH | Holcim (Schweiz) AG | | CH | TRAFFIC |
| 7 | HOLCH | Holcim (Schweiz) AG | | CH | VKM |
| 8 | HOLD | HOLDEN TRUCKING INC | | | SCAC4 |
| 9 | HOLDEN | Holden | | AUS | TRAFFIC |
| 10 | HOLE | HOLSTINE, R R LLC | | | SCAC4 |
| 11 | HOLF | HOFFMAN, LENNY EXCAVATING INC | | | SCAC4 |
| 12 | HOLG | HOMAN LOGISTICS INC | | | SCAC4 |
| 13 | HOLI | HARTLEY OIL COMPANY INC | | | SCAC4 |
| 14 | HOLN | HOLLAND TRANSPORTATION CO INC | | | PWRC |
| 15 | HOLN | HOLIMAN TRANSPORT LLC | | | SCAC4 |
| 16 | HOLP | HOLLANDS EXPRESS INC | | | SCAC4 |
| 17 | HOLQ | HOGAN TRANSPORTATION LLC | | | SCAC4 |
| 18 | HOLR | HOLLIS, RICH | | | SCAC4 |
| 19 | HOLT | HOLLAND TRANSFER COMPANY | | | SCAC4 |
| 20 | HOLU | HOLCIM (SCHWEIZ) AG | | CH | BIC |
| 21 | HOLU | HOEGH LINES AS | | | SCAC1 |
| 22 | HOLU | HOLCIM (SCWEIZ) AG | | | SCAC4 |
| 23 | HOLW | HOLLOW TRUCKING COMPANY | | | SCAC4 |
| 24 | HOLW | Holloway Bus Service | | US-NJ | TRAFFIC |
| 25 | HOLX | Home Oil Refining Co. of Texas | 8/1920 | | NAKINA |
| 26 | HOLX | HOME OIL REFINING CO. OF TEXAS | | | PWRC |
| 27 | HOLZ | HOLMAN CEMENT CO. | | | PWRC |
