Castle Lotus
Address: http://www.castlelotus.com/
Castle is also an approved Lotus sales and service centre.

Castle Sports Cars
Address: www.castlesportscars.co.uk


Hilton Coachworks
Address: http://www.hiltoncoachworks.co.uk/
Castle's sister company specialises in TVR works at its 30,000 square foot state-of-the-art body shop and accident management facility.

Mid-Essex TVR Car Club
Address: http://www.midessextvr.co.uk/
Castle is heavily involved with its local regional TVR Car Club in mid-Essex.

TVR Car Club
Address: http://www.tvrcc.com/
The TVR Car Club has a membership of over 7,000 owners and enthusiasts. The club arranges events, discounts and regional meetings, and has an informative website and monthly magazine.

TVR Engineering
Address: http://www.tvr.co.uk/
TVR is the UK's largest independent automotive manufacturer, engendering passion and pride in its owners, enthusiasts and fans alike.