The deal includes the Zurich Premiership season, which started on 5 September, as well as England's three home autumn internationals against Canada, Australia and South Africa. It concludes with next summer's British and Irish Lions tour.
Guinness will also sponsor Sky Sports' weekly rugby magazine programme, The Rugby Club, and its coverage of competitions from the southern hemisphere, including the Tri-Nations, Super 12, Currie Cup and NPC tournaments.