The deal comes with less than 200 days to go until the start of this year's Paralympic Games in the Japanese capital.

It continues the family-owned company's links with sport as they were the main contractor responsible for London Stadium which was built for the 2012 Games.

The partnership "aligns with Sir Robert McAlpine's commitment to creating an inclusive workplace environment and culture, that values the diversity of individual talents", it is claimed.

"As Tokyo 2020 draws ever closer we are delighted to partner with Sir Robert McAlpine to support their ambition of creating positive change across the engineering sector," said Mike Sharrock, the chief executive of the British Paralympic Association (BPA).

"Their core values of inclusivity and diversity are ones which align very closely to our own and which are fundamental to the Paralympic Movement.

"By working together to challenge and change perceptions, we look forward to seeing what this partnership will bring to the BPA, Sir Robert McAlpine and its employees.

"With their support, we can help to ensure disabled people are represented throughout society and, like our Paralympic heroes, become impossible to ignore."

Paul Hamer, the chief executive of Sir Robert McAlpine, added: "We are proud to support ParalympicsGB because we share the same values. 

"As a family-run inclusive business, we support individuals to be the best and fulfill their potential.

"As we build-up towards Tokyo 2020 we wanted our Sir Robert McAlpine family together with their loved ones, to have the opportunity to find out more about what it takes to make it to the Games and to get personally involved in supporting members of the team and have some fun along the way."