Casual dining chain Côte has bought restaurant businesses Jackson + Rye and Limeyard for an undisclosed sum, with plans to roll out both brands.
Jackson + Rye has three London locations, in Soho, Chiswick and Richmond.
Meanwhile, Limeyard, which bills itself as an all-day American kitchen, has just one site in Ealing.
Both brands were originally backed by Richard Caring.
Alex Scrimgeour, chief executive of Côte, told the Evening Standard: "We are incredibly excited to bring two high-quality fledgling restaurant concepts under the Côte umbrella at such an early stage in their growth.
"Both cater to a new type of clientele for us and we see an opportunity to apply Côte's proven front and back of house expertise to develop and expand both brands further."