The England and British & Irish Lions hooker, who has won three Premiership titles and back-to-back Champions Cups with the club, put pen to paper to a new deal that will keep him in north London through to 2021.
An academy graduate, George joined Saracens aged 14 and made his senior debut in 2009. He has made 177 appearances for the side and has forged a role as one of the team’s core leaders.
On his excitement, George, 26, said: “It’s the club that I’ve grown up playing for, the club I’ve grown up supporting my whole life. To be signing here for the long-term and to have played here for a long time already is a huge honour.
Saracens director of rugby Mark McCall added: “We’re over the moon to secure Jamie’s long-term future. He is fast becoming a world class player in his position, and is a key figure for both club and country.
“Jamie is a real example for our younger players to follow. It’s well documented how patient he had to be earlier on in his career and both Jamie and Saracens have reaped the rewards from that.
“He is another player who has progressed through the ranks at Saracens to become a key player for club and country. He is a Saracen through and through, and his hunger and drive to keep on improving is exceptional. The whole club is looking forward to seeing him at Allianz Park over the coming years.”
Saracens through and through, the club has played a huge role throughout George’s life. His father, Ian, works with the team’s academy and his brother, Jonathan, works in the team’s medical department.
On the special environment, he said: “It’s amazing what they have done for me and my family.
“My mum and other brother never miss a game. They love it. We are very much a part of the Saracens community.”
The news comes only weeks after fly-half Owen Farrell, another academy graduate, signed a five-year extension with Saracens at the start of the season.
George said: “We are all getting closer and closer and that is a huge reason why I wanted to sign; that and being a part of something special that is happening here.
“You want to be playing with guys like that. I think the club is in a really good place at the minute.”