The company, founded in London in 1845, will remain the official professional services partner of the United States Olympic Committee (USOC) up to the Games in the Japanese capital.

The deal also includes Rio 2016 and the 2018 Winter Olympics and Paralympics in Pyeongchang.

Deloitte have been a sponsor of the USOC since 2009 and the company help American athletes represent their country at international competitions.

They provide professional services assistance to the USOC, including advisory, tax and consulting in a bid to further develop sport in the nation and to help the Olympic Committee achieve their principle aims.

“Since 2009, Deloitte has served as a trusted advisor to the USOC – helping us to set long-term strategy and aiding us in our mission of effectively serving Team USA athletes,” said Lisa Baird, USOC chief marketing officer.

“We are proud to call Deloitte a member of the USOC family of sponsors, and we are thrilled that Deloitte’s commitment to Team USA will continue through 2020.”

Other member firms of the Deloitte Touche Tohmatsu Limited network also have a strong relationship with the Olympic Movement.

Deloitte Canada is a national partner of the Canadian Olympic Committee and Deloitte UK acts as the official professional services partner of the British Olympic Association and British Paralympic Association.

“Teamwork, leadership and a commitment to excellence are traits exemplified by both Team USA athletes and Deloitte personnel,” said Diana O'Brien, chief marketing officer at Deloitte LLP.

“Our ongoing sponsorship helps athletes in the Olympic and Paralympic Games successfully compete on the global stage.

“It’s why we are passionate about our continued support of the United States Olympic Committee.”