StreetSmart has launched its 2014 campaign to address homelessness with top restaurants including Social Eating House and Merchant's Tavern joining the Christmas charitable project.
Now in its 16th year, the campaign asks restaurants to add £1 to bills in November and December to raise vital funds for projects that tackle homelessness.
This year the Michelin-starred Social Eating House, Lima and Angler have joined new openings such as Merchant's Tavern and Union Street Café in supporting the projects.
What started as a handful of restaurants in 1998, including OXO Tower, St. John and The River Café, has swelled to over 550 in 22 cities across the UK.
Jason Atherton said that it was great to give something back through the joy of cooking.
Gordon Ramsay added: "StreetSmart has become part of Christmas for us. It's everyone's chance to do the right thing at the right time with only the gentlest nudge."
Last year burger restaurant Meatliquor raised £14,000, while vegetarian Brighton restaurant Terre à Terre raised £3,000 for the city's homeless.
In 2013 , StreetSmart supported 103 different projects designed to tackle homelessness ranging from food banks and winter shelters to housing advice and employment training.
To get involved in this year's campaign, restaurant owners can sign up on the StreetSmart website at www.streetsmart.org.uk/sign-up.php