Poels indicated last month that he would be moving on from Omega Pharma-Quick Step after just one season despite team CEO Patrick Lefevere wanting to keep him.
The 26-year-old signed a one-year deal with the Belgian team after his Vacansoleil-DCM team folded at the end of 2013. It was reported that Poels was in negotiation with Belkin but Poels' salary demands put a stop to discussions. Poels would be the first Dutch rider to sign for Team Sky.
The Dutchman's addition would strengthen Sky's support for Chris Froome in the mountains.
