BALFOUR Beatty is backing Chris Moon (right) in his One Walk project to travel between John o'Groats and Land's End later this month.
Chris lost an arm and a leg clearing landmines but will still walk two marathons a day for 25 days on his gruelling journey.
He has set himself a target of raising £1 million for Leonard Cheshire, the UK's disability support charity. Balfour Beatty is also looking to its employees to join Chris for several stages of his journey.
The London office has already signed up and will provide a team to walk alongside him for a special seven-mile distance on 22 June.
The London event promises to be particularly significant with a growing list of businesses agreeing to enter teams of up to five employees to walk the seven-mile route.
Tim Sharp, communications director for Balfour Beatty, said: 'We are delighted to be supporting Chris Moon in his One Walk challenge. He is a remarkable man who is an inspiration for all.
'Leonard Cheshire is an extremely worthwhile charity who we are very pleased to be supporting in this way.'