Tom made his England debut in the Autumn Internationals following a successful campaign in the Aviva Premiership, while 23-year-old Ben has racked up over 100 appearances for the Tigers.
Tigers director of rugby Richard Cockerill told the club's official website: "It is excellent news that both Tom and Ben have agreed new deals with us. They are both very important to the club.
"They have grown up in a Leicester Tigers family, their dad Nick played for the club, they know the history of this place and they have come all the way through the academy system here before establishing themselves as key first-team players."
Ben has secured 26 international appearances.