Gail’s was co-founded in the 1990s by Israeli baker Gail Mejia and businessman Ran Avidan, and opened its first bakery in Hampstead’s High Street in 2005. Tom Molnar is the co-founder and CEO of Gail’s and its parent company, Bread Holdings.

Gail’s has expanded outside London to elsewhere in the south-east of England, and since 2022 to outside the south-east. As at April 2024 there were 131 outlets, with more planned.