The organisation and the foundation, set up in 1987 after serious accidents suffered by Tour de Suisse and Hallenstadion-Director cyclist Joseph "Sepp" Voegeli, have been working together since 2007.

"The Joseph Voegeli Foundation has been a long-term, faithful partnership," Swiss Paralympic President René Will said.

"I am delighted that the extension continues until 2019. 

"This is a strong sign of their commitment and is highly valued by Swiss Paralympic and our athletes."

The foundation aims to provide financial support to athletes who have been involved in accidents.

Financial grants are also given by the foundation in order to allow Swiss competitors to take part at major events such as the Paralympic Games and World Championships.

"The Joseph Voegeli Foundation Board have been impressed by the top results of Para-athletes and would like to continue to support them," André Voegeli, the head of the foundation, added.

Swiss Paralympic also has partnership agreements with supermarket chain Co-op and the Swiss Paraplegic Foundation among others.

Switzerland won five medals at the Rio 2016 Paralympic Games, winning two golds, two silvers and one bronze.

Four of those medals were won by men's T54 wheelchair racer Marcel Hug, who claimed gold in the 800 metres and marathon and silver in the 1,500m and 5,000m.

Cyclist Tobias Fankhauser took bronze in the men's H2 road race event.