From their website:

I began copy editing and proofreading professionally in 2012, after completing my BA in Anglo-Saxon, Norse and Celtic at the University of Cambridge. I have worked as a copy editor in academic publishing and the self-publishing world. I have worked on fiction and non-fiction projects of almost every genre, from post-apocalypse to erotica, ranging from short stories to lengthy novels.

I have extensive linguistic knowledge as well as years of experience. As a member of both the American Copy Editors Society and the International Association of Professional Writers and Editors, I constantly improve my skills and try to remain at the top of my field.

When you hire me to edit your manuscript, you are hiring someone who has the ability to catch more than just typos and obvious mistakes. I provide a professional-level service and can identify and correct subtle errors most people would miss.

I work in both American and British English. Although I am very thorough, I am non-invasive. I work hard to preserve the author's voice whilst improving flow and readability. If you think I might be a good fit for you, head over to my Contact page and send me a message.

From their website: Self-publishing your book means dealing with a lot of details. Let Nina take the headache out of the final steps of putting your digital and/or print book on sale with her formatting services. From hyperlinked table of contents to the stylized images for scene breaks and chapter header fonts that complement your book cover and genre, straight through to your author bio, your book will have the professional look your readers will love. Most formatting projects are completed within a week of start date and are validated for digital and print formatting accuracy.

From their website:

Crafting beautiful books is at the heart of everything that Reedsy does. We're changing the way books are published by giving authors and publishers access to talented professionals, powerful tools, and free educational content. Reedsy was founded in the summer of 2014 by Emmanuel Nataf, Ricardo Fayet, Vincent Durand and Matt Cobb. Since then, we’re proud to have built a network of world-class publishing professionals and helped produce over 3,000 books.

From their website:

Our services include:
eBook & paperback formatting
Original eBook & paperback cover design
Pre-made eBook & paperback cover design
Proofreading
Editing
Business card design & printing
Bookmark design etc
Teasers, Banners, Logos & Swag

From their website: L. WOODS PR is a full service promotional and marketing company that focuses on helping your brand stand out. Whether you're just starting out, or you have an established brand, L. Woods PR can help expand your reach, design your logo and get your brand noticed.

From their website: BookBub is a free service that helps millions of readers discover books they'll love while providing publishers and authors with a way to drive sales and find new fans. Upon joining, members receive unbeatable deals selected by our expert editorial team, handpicked recommendations from people they trust, and real-time updates from their favorite authors. BookBub works with all major ebook retailers and devices, and partners with thousands of the industry’s leading publishers and authors to promote their books. BookBub was founded in 2012 and is headquartered in Cambridge, Massachusetts, USA.

From their website: Created your ebook in Vellum? It’s ready for print.

Page numbers. Margins. Headers. Font. Line spacing. All of the setup that can take hours elsewhere happens automatically with every book you create.

And Vellum goes beyond the basics to prevent widows, balance page spreads, and avoid short pages — all automatically. You’ll have a book that looks like it took days to create …in minutes.

From their website: Stunning cover art that doesn’t cost the earth. Our book covers are unique in that we never sell the same cover twice. Coveted by authors around the world, our award-winning covers will give you the edge over your competition.

Studioenp is a creative studio formed in 2017 by Emmy and Paul Ellis.

Based in North Nottingham (just an hour or so on the train from London Kings Cross) we work closely with authors and publishers from around the globe.

With a plethora of skills ranging from editing, book covers, branding, web design, and marketing, we can deliver you the complete publishing package.

Collaborating with marketers, photographers, and a whole host of other gifted individuals, we can provide all the services you need from under one awesome roof.

We also offer full manuscript/dissertation editing, book cover art, exhibition graphics/posters, branding, good old graphic design, marketing, website design, and social media solutions.

Premade & custom covers for several different genres, box set covers, social media promotional images...and more.

From Jennifer's Website: Jennifer, a perpetual student, lover of academics, and a complete bookworm, has spent the majority of her adult-life enrolled in higher education. She’s attended the University of Waterloo for English Literature, Conestoga College for Radio and Television Broadcasting, and Simon Fraser University for a general editing certificate. She’s currently working toward completing a certificate in publishing at Ryerson University with a specialization in editing books for young adults. She’s a member of the Editors Association of Canada, the Editorial Freelancers Association, and the Academy of Copy Editors Society. Her list of clients includes award-winning and bestselling fiction writers (mainly romance) in all genres from young adult to women’s fiction and everything in between. Before editing fiction, she edited, wrote, and designed safety and technical equipment manuals, and also spent five years at a daily newspaper as a sports reporter and feature writer.

Jennifer is a freelance production/content editor for Lyrical Press and offers her freelance editing services to independent authors. She’s also spent time as a content editor and copy editor at the now-defunct Three Worlds Press, Breathless Press, and Lycaon Press. Jennifer spent three years as an intern for Entangled Publishing; where she found her love and passion for critically examining plot structure, character arcs, and writing mechanics.