Despite numerous publications describing Harding as a billionaire, no proof has been available to validate that statement, leaving speculation that the sobriquet was used to drive article views. Forbes noted that Harding does not appear on its list of billionaires, and that his "exact net worth is unknown. In the 1990s, Harding worked in the
information technology industry. He helped establish
Logica Middle East in Dubai and Saudi Arabia, as well as serving as the Managing Director of
Logica India until he founded the private
investment company Action Group in 1999. In 2004, he founded the
business jet brokerage company Action Aviation. Harding also visited the
South Pole several times; he accompanied
Buzz Aldrin in 2016 when he became the oldest person to reach the South Pole (age 86) and his son when he became the youngest (12). On 5 March 2021, Harding and
Victor Vescovo dived to the deepest point of the
Mariana Trench, the
Challenger Deep, at a depth of approximately 11,000 m (36,000 feet), in the two-person
deep-submergence vehicle DSV Limiting Factor, setting the
Guinness World Records for greatest distance covered at full ocean depth and greatest time spent at full ocean depth. His 13-year-old son accompanied the mission on the surface support ship
DSSV Pressure Drop. Harding flew to space as part of the suborbital
Blue Origin NS-21 mission, on 4 June 2022, on the fifth crewed spaceflight of the
New Shepard rocket. After travelling to space, he advocated for
space tourists (paid recreational spaceflight passengers) to be called
astronauts. He also advocated for the
United Arab Emirates to expand its
space programme. In September 2022, Harding's company Action Aviation supplied a customised
Boeing 747-400 aircraft to transport eight wild cheetahs from Namibia to India to launch the
reintroduction of the cheetah to India project of the Indian Government and the
Cheetah Conservation Fund in Namibia (CCF). Cheetahs were declared extinct in India in 1952. This conservation project was designated a "flagged expedition" by the
Explorers Club with club members Harding and
Laurie Marker, founder of the CCF, carrying the flag on the flight to India. ==Personal life==