The Spinnakers and Sequins gala dinner, which will host approximately 200 crew members from visiting yachts, will be joined by the Lieut-Governor, Lieut-General Andrew Ridgway, other distinguished guests and Humphrey Walters, who was the motivational coach to the England Rugby World Cup-winning squad in 2003.
The event coincides with a sailing race between Portsmouth, Jersey, Guernsey and Cherbourg.
Companies have chartered yachts and filled them with professional sailors as well as staff members.
Le Tournoi organiser Andrew Le Seelleur said: ‘Le Tournoi is all about team-building, participation and having lots of fun, and the sailing challenge will certainly tick all those boxes.
A fundamental concept is promoting the participation of charities that we choose to support.
Two yachts will be partly crewed by deaf and disabled sailors, helping to showcase their abilities rather than their disabilities.
‘Each charity will also be hosting displays of their work at the gala dinner, and we have worked hard to help local charities link up with their national counterparts to ensure that they can gain maximum exposure on both sides of the English Channel.
‘Our main charities this year are the Jersey Sports Association for the Disabled, the Jubilee Sailing Trust, the Jersey Society for Deaf Children and Young Adults and the Jersey MS Society, and they will all be heavily involved in the event.’