Mark Gristock is a professional in their field. Colleagues describe them as "Mark has a fantastic knowledge of the gaming industry which is unparalleled. He is also a creative brain, and has an ability to work around any problems you face in the legalities of promoting gambling products. Combine this with a wicked sense of humour and the whole process becomes all the more enjoyable." and "I've never seen dedication and commitment like Mark's. He applies the creative mind of a marketeer with tireless enthusiasm; mixing a desire for new ideas with the application of key learnings. A true professional."