Adventure Consultants

Adventure Consultants, formerly Hall and Ball Adventure Consultants, is a New Zealand-based adventure company that brings trekking and climbing groups to various locations. Founded by Rob Hall and Gary Ball in 1991, it helped pioneer the commercialisation of Mount Everest, During its 1996 Mount Everest climb eight people died, including Hall, a guide, and two Adventure Consultant clients.

Prior to starting Adventure Consultants, Hall and Ball climbed the Seven Summits in a seven-month time frame. Heavily covered by the media, they became celebrities in New Zealand. They undertook 47 expeditions together; their friendship was noted in the mountaineering world.

Following the deaths of Ball and Hall, the company was purchased by Guy Cotter, who continued to operate the business.