ResDiary is one of the world’s leading providers of online restaurant reservations, seating over 13.9 million diners per month across more than 8,100 restaurants in 59 countries. ResDiary is a web application sold as software as a service and is accessible via the Internet.

The business was founded by Mike Conyers and Marcus Cent in Glasgow, Scotland in 2006. It was sold in an all-cash deal to a large multinational in 2018.