Okay, you probably know about Granta, but just in case… The magazine was originally founded in 1889 and has been a literary quarterly since 1979.
Granta Books was launched ten years later, and now boasts a list of authors including Ben Lerner, Jenny Offill, Rebecca Solnit and Jeanette Winterson (to name a few). They also publish incredible works in translation, with books from Hiromi Kawakami, Han Kang, Sayaka Murata and Mariana Enriquez. Whilst they remain a relatively small independent, the cultural impact of their books is huge.