Adaptive Grand Slam Team Leader, Martin Hewitt, is the founder the AGS. Martin served eight years as a commissioned officer with the Parachute Regiment. He worked on operations and training exercises in the Middle East, Africa, Europe, and North America. Martin was injured whilst leading his men in combat in Afghanistan. The injuries paralysed his right arm and ended his military career.


Challenges Completed: Mt Denali, Mt Elbrus, Mt Kilimanjaro, Mt Aconcagua, The Geographic North Pole

Challenges Attempted: Mt Everest.


Team member, speaker & instructor

Terry served twice in Iraq with 2 Para as a Private and Lance Corporal. He passed the SAS Briefing Course but chose to go to Afghanistan in 2008 as the Lead Section Commander for C Company, leading all of the Battalion and Brigade operations. Terry was injured in August 2008, sustaining a below the knee amputation of his right leg with a damaged right hand and amputated little finger. He was the fastest ever amputee to be discharged after just 4 months. Since his injury, Terry has gone on to achieve a position on the GB cycling team, obtaining several World Records, including winning the World Championship for team sprint. In June 2014, Terry successfully summited Mont Blanc (4,810m) in Italy and Mont Elbrus (5,462 m) in Russia.

Challenges Completed: Mt Elbrus, Mt Kilimanjaro, Mt Aconcagua

Challenges Attempted: Mt Denali



Team member, speaker and instructor

Matt Nyman was injured in Iraq when the AH-6 Little Bird he was on went into an uncontrolled spin during a special operations mission. He was thrown from the helicopter and into the tail boom which severed his right leg. After his injury, Matthew made an attempt at climbing Mount Denali however after reaching 17,200 ft, High Camp, he was turned down the mountain due to altitude sickness. Undeterred, in 2010 he returned and successfully summited the mountain. In the same year, he went on to climb Mount Lobuche with ‘Soldiers to Summits’. In 2013 Matt successfully summited Mount Elbrus with the Adaptive Grand Slam team and is a motivational speaker with Fieri Leadership and training instructor with Mission X.

Challenges Completed: Mt Denali, Mt Elbrus, Mt Kilimanjaro, Mt Aconcagua


Lead Guide

Harry Taylor is a former British SAS member, mountaineer and security advisor. He founded ‘High Adventure’ with Loel Guinness, an extreme sports company specifically designed to set records in climbing, paragliding and skydiving. His team set a world distance flight record for a paraglider at 150.6km in Namibia. In 1991, with close friend Charles “Nish” Bruce he made a tandem skydive with oxygen from 27,000 ft over Badajoz in Spain. Taylor flew a tandem paraglider from Cho Oyu (8,201m) Tibet and was also the first British paraglider pilot to fly from Denali, Alaska. Harry was the Adaptive Grand Slam team guide on Mount McKinley in 2013 and Mount Elbrus in 2014. Harry, a co-founder of Mission X, will now guide the team on their remaining Adaptive Grand Slam challenges.


Jaco van gass


Jaco van Gass joined the Parachute Regiment in 2007. During his second tour of Afghanistan, he sustained life changing injuries, including the loss of his left arm at the elbow. Since then, he has taken on the world. He's completed the unsupported trek to the Geographic North Pole, he became the first disabled South African to summit Mt. Manaslu (8164m - the 8th highest peak in the world), he successfully summited one of our 7 summits: Mt. McKinley (6194m), he's a current member of the GB Paralympic Academy cycling team and has won 3 gold and 1 silver medal at the Invictus Games in 2014 and 2016.

Challenges Completed: Mt. McKinley, Mt Aconcagua, The Geographic North Pole

Challenges Attempted: Mt. Everest