Tour de France white jersey winner Adam Yates and brother Simon have extended their Orica-BikeExchange contracts, while Olympic gold medallist Owain Doull has signed for Sky.
Adam Yates finished fourth as the best performing young rider in the Tour de France last month.
The 24-year-old and his twin brother Simon has committed to Australian team Orica for the next two years.
"I'm really happy to extend my contract with the team and take the next, important steps in my career here," Adam Yates said in a statement.
"I'm ready to target a podium spot in the Grand Tours and with the support and environment the team gives me, I think we can achieve it."
Doull meanwhile, a gold medal winner for Great Britain in the team pursuit at Rio 2016, will turn professional after agreeing a deal with Sky.
The 23-year-old is set to begin riding for Sky in select events this year before taking on a full programme in 2017.