- Enjoy Sport
- 34 High Street, Northwood, Middlesex, HA6 1BN
- Danubius Hotels Group
- C P Ho Otterspool Wy, Watford, Hertfordshire, WD25 8HL
- Jolly Hotels
- Rickmansworth, Hertfordshire, WD3 1AQ
- London and Europe Apartments
- 24 Ivinghoe Road, Bushey, Hertfordshire, WD23 4SW
- Villa Plus
- Drovers Ho Adelaide St, St. Albans, Hertfordshire, AL3 5BH
- Enjoy Sport
- 34 High Street, Northwood, Middlesex, HA6 1BN
- Brittany Travel
- 27c High Street, Ware, Hertfordshire, SG12 9BA
- Adeyfield Adventure Playground
- Turners Hill, Hemel Hempstead, Hertfordshire, HP2 4LW
- Bennetts End Adventure Playground
- Rant Meadow, Hemel Hempstead, Hertfordshire, HP3 8EQ
- Bourne Leisure Group Ltd
- 1 Park Lane, Hemel Hempstead, Hertfordshire, HP2 4YL
- Bourne Leisure Group Ltd
- 1 Park Lane, Hemel Hempstead, Hertfordshire, HP2 4YL
- Butlins
- 1 Park Lane, Hemel Hempstead, Hertfordshire, HP2 4YJ
- Butlins Holidays
- 1 Park Lane, Hemel Hempstead, Hertfordshire, HP2 4YJ
- Chaulden Adventure Playground
- Long Chaulden, Hemel Hempstead, Hertfordshire, HP1 2HX
- Sleep Inn
- A1 M /A507, Radwell, Baldock, Hertfordshire, SG7 5TR
- Express by Holiday Inn Hotels
- London Rd, Flamstead, AL3 1XX
- Express by Holiday Inn Hotels
- St Albans, AL3 2AB
- Kidzone
- Unit 1 North Bdge Rd, Berkhamsted, Hertfordshire, HP4 1EH
- London Vista Hotels
- Rossway, Berkhamsted, Hertfordshire, HP4 3TZ
- Pact Activity Holidays
- 72 Greenway, Berkhamsted, Hertfordshire, HP4 3LF
- Mr Barney Levy
- The Spinney, White Barns Lane, Furneux, Pelham, SG9 0KH
- Holiday Bookings
- 2 Stratton Way, Biggleswade, Biggleswade, SG18 0DL
- Martin Allwood
- 32 Cumberland Drive, St Albans, Hertfordshire, AL3 7PG
- Anton Travel Services in Paphos
- Unit 6 Park House, Watford, Hertfordshire, WD18 8PH
- Lea Valley
- Chalet D Old Mill Meadows, Mill Lane, Broxbourne, Hertfordshire, EN10 7AX
- La Fournerie
- La Fournerie, Breville, France, AL7 7HQ
- Have That Holiday
- Po Box 209, Letchworth Garden City, Hertfordshire, SG6 3ZR