Team Sky have extended the contract of Tour de France winner Chris Froome and confirmed the signature of Spanish climber Mikel Nieve.
Froome is one of ten riders to renew their deals with the British squad, with Ian Stannard, Peter Kennaugh, David Lopez, Luke Rowe, Salvatore Puccio, Danny Pate, Xabier Zandio, Sergio Henao and Chris Sutton all also putting pen to paper.
Nieve, 29, joins from the now defunct Euskaltel-Euskadi team and becomes Team Sky's fourth acquisition of the off-season.
Nathan Earle and Philip Deignan's signatures had already been announced, while Sebastian Henao, Sergio's cousin, completes the list of new arrivals.
Froome, 28, who joined Team Sky in its inaugural year in 2010 and won five stage races in 2013, said: "This has been an incredible year for me and I am delighted to finish it off by signing a new contract with Team Sky.
"I have been with this team since the start and I know this is the right place for me to continue to grow as a rider."
Nieve finished 12th overall at this summer's Tour de France and has won stages at both the Giro d'Italia and Vuelta a Espana during a six-year career.
He is set to perform the role of mountain domestique for Team Sky and fills the place vacated by Rigoberto Uran, who has joined Omega Pharma - Quick-Step.
Team Sky performance manager Rod Ellingworth said: "Everyone is excited to kick things off again in 2014 and we do so with what we believe is the most talented team in the world.
"We have consolidated what is an incredibly strong group of guys over the winter. The team's core remains intact and that is important going forward.
"Everyone is committed to keep improving and we always look to provide the best environment for riders to do that."
Details of the length of contracts signed by the riders were not revealed.