Delegates will head to the offices of The Engine Group, Slice's parent company, for drinks before going on a tour of the Olympic Stadium to meet Britain's Olympic hopefuls including table tennis wizard Darius Knight and boxer Nicola Adams.
The evening will finish at Forman's Fish Island, located near the stadium, for food and networking.
"The day is a chance for staff to enjoy themselves, and is a nod to Nuffield's dedication to health and fitness. Staff get the chance to meet the athletes who are preparing for the Olympics," said Slice head of business development Rob Sellers.
The event is the first that Slice has produced for Nuffield Health.