| Capital Sport - The Red House - HP22 5EZ |
| Independent Vehicle Rental Ltd - 13 Queensway - HP21 9DD |
| Kirkstone Event Management Ltd - PO Box 305 - HP21 7GH |
| Klub Kart Racing - 11 Pembroke Road - HP20 1DB |
| Main Event Management - 8 Field Close - HP20 1XR |
| Primetime Events Ltd - Cobwebs - HP22 5AX |
| Vision Motor Sport - Unit 348a Westcott Venture Park - HP18 0XB |
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