| Fremantle | 181 |
| British Broadcasting Corporation | 93 |
| BBC Studios | 20 |
| ITV Studios | 20 |
| Thames Television | 19 |
| Sony Pictures Television | 14 |
| Mammoth Screen | 11 |
| Netflix | 11 |
| Sky Studios | 11 |
| Tiger Aspect Productions | 10 |
| London Weekend Television | 9 |
| Pilot Productions | 9 |
| BBC Natural History Unit | 8 |
| ITV Granada | 8 |
| The Forge | 8 |
| AP Films | 7 |
| Banijay UK | 7 |
| Big Talk Studios | 7 |
| ITV | 7 |
| The Jim Henson Company | 7 |
| All3Media | 6 |
| BBC Scotland | 6 |
| Carlton Television | 6 |
| Carnival Films | 6 |
| ITV Central | 6 |
| Left Bank Pictures | 6 |
| STV Studios | 6 |
| Talkback Thames | 6 |
| Thames | 6 |
| Bad Wolf | 5 |
| BBC Cymru Wales | 5 |
| Endemol | 5 |
| Hartswood Films | 5 |
| Hat Trick Productions | 5 |
| Honeycomb Animation | 5 |
| Kudos | 5 |
| See-Saw Films | 5 |
| Avalon Television | 4 |
| BBC Television | 4 |
| Century 21 Productions | 4 |
| Company Pictures | 4 |
| FCCE | 4 |
| HBO | 4 |
| ITC Entertainment | 4 |
| Lime Pictures | 4 |
| Little Brother Productions | 4 |
| Objective Media Group | 4 |
| Playground Entertainment | 4 |
| Red Production Company | 4 |
| Reg Grundy Organisation | 4 |
| Shine TV | 4 |
| Wall to Wall Media | 4 |
| ABC Television Limited | 3 |
| Amazon MGM Studios | 3 |
| ATV | 3 |
| Blue-Zoo Productions | 3 |
| Darlow Smithson Productions | 3 |
| Discovery Channel | 3 |
| Element Pictures | 3 |
| France Télévisions | 3 |
| Hungry Bear Media | 3 |
| Icon Films | 3 |
| ITV Anglia | 3 |
| Lux Vide | 3 |
| Offspring Films | 3 |
| Scott Free Productions | 3 |
| Television South | 3 |
| Warner Bros. Television Studios | 3 |
| Working Title Films | 3 |
| World Productions | 3 |