The All Bar One and Browns operator took a 40% stake in the James Horler-led business in 2018, entering a joint venture with Ego’s parent company, 3Sixty Restaurants.
Under the joint venture, Ego has doubled its number of Mediterranean-themed pubs and restaurants and currently operates 26 sites.
The deal, expected to complete in June, will add to M&B’s estate of 1,700 restaurants and pubs across the UK.
The Horler-led team will continue to lead the business through its expansion under M&B.
M&B chief executive Phil Urban said: “James and his team have built a strong business, with a strong culture, delivering impressive results.
“Bringing it under M&B ownership will give James the firepower to accelerate expansion, and Ego will be a great addition to our portfolio of market-leading brands.”
Horler added: “The joint venture has been very successful and demonstrates what can be achieved with focused management, great people, real customer engagement and terrific sites. I am excited at the opportunity to open Ego in many more locations across the UK.”