| H Charlesworth & Co. | |
| Halcyon | |
| Hambledon Studios | |
| Hampton Print (Bristol) | |
| Hardy Holdings | |
| Harrison Terry Group (The) | |
| Haynes Publishing Group | |
| Headley Brothers Ltd | |
| Heanor Gate Publishing | |
| Hendy Banks Holdings | |
| Henry Ling | |
| Henry Mills | |
| Herbert Walker & Son | |
| Heronsgate | |
| Hill & Tyler | |
| Hilo Colour Printers | |
| Hobbs The Printer | |
| Holbrooks | |
| Holywell Press | |
| Howard Hunt (City) | |
| Hunter & Foulis |