Updated August 8th 2024: They appear to have removed their submission guidelines from their website and appear to be no longer open to submissions.
Repeater Books was founded in 2014 by Mark Fisher, Tariq Goddard, Etan Ilfeld, and others, as an imprint of Watkins publishing, which has been around since 1983. You can learn more about them and their former and current staff here. You can get a feel for the books they publish here.
On Watkins Media’s main website they describe Repeater as “Our new imprint specializing in counter-culture fiction and non-fiction, books that are guaranteed to create a discussion and inspire change.” They are distributed by Penguin Random House Publisher Services.
They accept submissions via Submittable. They try to respond to all submissions within 5 weeks. They do not “accept theses or proposals based on them”. They stress that they “prefer complete manuscripts, but if you want to pitch something to us, please send a complete breakdown of the book you intend to write.”
Their Submittable page has them currently listed as open to the following categories: Politics and culture; philosophy; literary, art music criticism; fiction/poetry; and other stuff.
When you click on each of the categories they do not go into specific details about what they are seeking in these categories. Other stuff, for example, is not defined at all, so it is really worth your time to spend time with their catalogue, to know what they are actually seeking.
Because this site uses Submittable, they may close unexpectedly if there is a submission cap. If that happens they should re-open in a month.
Their Submittable page is here, and their main submissions page is here, although neither go into great detail, please follow the instructions they have laid out.
Emily Harstone is the author of many popular books, including The Authors Publish Guide to Manuscript Submissions, Submit, Publish, Repeat, and The 2022 Guide to Manuscript Publishers.
She regularly teaches three acclaimed courses on writing and publishing at The Writer’s Workshop at Authors Publish. You can follow her on Facebook here.