| Gulliver's Warrington | Warrington, Cheshire, England, United Kingdom | Operating | | 3 |
| | Happiland | Southport, Merseyside, England, United Kingdom | - | - | - |
| Harbour Park | Littlehampton, West Sussex, England, United Kingdom | Operating | | 1 |
| | Hastings Pier | Hastings, East Sussex, England, United Kingdom | Operating | | - |
| | Hemsby Fun Park | Hemsby, Norfolk, England, United Kingdom | Operating | | - |
| | Hornsea Park | Hornsea, East Riding of Yorkshire, England, United Kingdom | - | ≤ | - |
| | Hull Zoological Gardens | Kingston upon Hull, East Riding of Yorkshire, England, United Kingdom | - | | - |
| Joyland Childrens Fun Park | Great Yarmouth, Norfolk, England, United Kingdom | Operating | | 2 |
| | Jungle Park | Skegness, Lincolnshire, England, United Kingdom | - | ≤ | - |
| Kidz Island | Southsea, Hampshire, England, United Kingdom | Operating | - | 1 |
| | Killarney Springs Family Park | Bude, Cornwall, England, United Kingdom | - | - | - |
| Knowsley Safari | Prescot, Merseyside, England, United Kingdom | Operating | | 1 |
| | Kursaal Amusement Park | Southend On Sea, Essex, England, United Kingdom | - | | - |
| Legoland Windsor | Windsor, Berkshire, England, United Kingdom | Operating | | 4 |
| Leisure Island Fun Park | Canvey Island, Essex, England, United Kingdom | Operating | - | 2 |
| Leisureranch | Weymouth, Dorset, England, United Kingdom | Operating | ≤ | - |
| Lightwater Valley | Ripon, North Yorkshire, England, United Kingdom | Operating | | 3 |
| | Liverpool Exhibition | Liverpool, Merseyside, England, United Kingdom | - | | - |
| Lost World Adventure Park | Skegness, Lincolnshire, England, United Kingdom | - | ≤ | - |
| | Luna Park | Scarborough, North Yorkshire, England, United Kingdom | Operating | ≤ | - |
| Mack's Amusements | Cleethorpes, Lincolnshire, England, United Kingdom | Operating | ≤ | 1 |
| Manning's Amusement Park | Felixstowe, Suffolk, England, United Kingdom | Operating | | - |
| Marleybrook Funfair | Canterbury, Kent, England, United Kingdom | Operating | | 1 |
| | Marvel's Amusement Park | Scarborough, North Yorkshire, England, United Kingdom | - | - | - |