The NFL announced that Wembley will host three games next year as the series continues its expansion.
The Raiders, along with the Jacksonville Jaguars and the Atlanta Falcons, will play one of their homes games in London in the 2014 season.
"We are excited and embrace this great opportunity to assist in building NFL popularity worldwide," Davis said in a statement on the club's official website.
"The Raiders are truly a global brand and we are looking forward to our home-field advantage at the new Wembley Stadium."
The Minnesota Vikings hosted the Pittsburgh Steelers in the first of the games to be played at Wembley this season.