Operators are awarded between one to five stars if at least 15 per cent of their ingredients come from organic suppliers.
Restaurants can sign up for £395 +VAT and will receive a certificate and stickers to display when certified. For chains there is an additional £50 fee per site if the same menu is used.
The scheme is designed to assure customers that restaurants cook with produce sourced from farms with high environmental and animal welfare standards.
Peter Melchett, policy director at the Soil Association, said: “Demand for organic is on the rise and it has never been easier to serve. [Organic food] is good for business, for customers, for animals and for the world around us.”
The award was first launched in Scotland in 2016 but became available across the UK this year.
The UK’s organic market is now worth almost £2bn, with sales of organic food and drink rising 4.9 per cent in 2016, according to The Soil Association.