| Abbreviation | Definition |
|---|---|
| HNAI | HN Automotive, Inc. |
| HNAV | Honnef North Australian Valuations |
| HNB | Human Network Broadcast |
| HNC | Hot New Company |
| HNGF | Hickory Nut Gap Farm |
| HNMOK | Halau Na Mamo O Kahalelehua LLC |
| HNRC | Harry Needle Railroad Company |
| HNT+B | Howard Needles Tammen And Bergendorff |
| HNTB | Howard Needles Tammen and Bergendorff |
| HO | Head Office |
| HOB | Hartsel's Only Bar |
| HOB | House Of Blades |
| HOB | House Of Blues |
| HOB | House Of Bugs |
| HOCC | Oilfield Construction Corp |
| HOD | House of Dereon |
| HODC | Henri Oguike Dance Company (Creekside, London, UK) |
| HODECO | Home Design and Consultancy |
| HOG | House Of Graphics |
| HOG | House Of Guitars |