Illustrative image; it does not depict Spines’ actual office or software.
Writing a book is only the beginning. Turning a finished manuscript into an edited, designed, distributed book, and then finding readers, can mean coordinating a string of publishing tasks that take months.
Boynton Beach-based Spines wants to put those steps under one roof. The AI-powered publishing platform announced Monday, Nov. 9, that it had secured $64 million in growth capital, with a plan to help authors move from manuscript to published book in weeks.
$64 million from equity investors and a financing facility
The financing combines a $29 million Series A-1 equity round led by Zeev Ventures and a $35 million non-dilutive financing facility from Twelve, according to Spines’ announcement.
Existing investors Aleph, NordStar, M-Fund and LionTree also participated in the equity round, alongside angel investor Dan Senor, chief public affairs officer at Elliott Investment Management.
The announcement also reported that Spines has reached a $50 million annual revenue run rate following 400% year-over-year growth. More than 8,000 American authors have published through the platform, and about 400 new authors join each month, the company said.
Zeev Ventures founding partner Oren Zeev, an early investor in Audible, said he had seen a friend publish through Spines and have a positive experience. He said he believes the company could become a go-to platform for authors worldwide.
Aleph co-founder and general partner Michael Eisenberg, who has written nine books, described the work after completing a manuscript as a process that can be “slow, fragmented and frustrating.”
Yehuda Niv, Spines founder and CEO. Photo via Refresh Miami.
What Spines’ AI agents do, and don’t do
Spines is designed for authors who already have a manuscript. The platform’s specialized AI agents handle publishing work such as editing, proofreading, formatting, cover design, translation, audiobook creation, marketing and distribution. Authors can also work with the company’s in-house human editors, proofreaders, designers and language professionals, according to the company announcement.
The distinction matters: Spines says it is using AI to support the publishing process, not to write the book. “We don't believe the future of publishing is AI writing books,” CEO Yehuda Niv said in the announcement. “We believe the future is AI giving authors superpowers.”
The author supplies the story and knowledge; Spines supplies technology and publishing infrastructure intended to help get that work ready for readers. Its distribution network spans more than 100 channels, the company says.
Illustrative image of publishing tasks; not a Spines product screenshot.
Spines says its approach is meant to compress a process that can take 12 to 18 months in traditional publishing into a matter of weeks. That is the company’s stated aim, not a guarantee that every book will follow the same timeline.
Where hybrid publishing fits
The model sits between traditional and self-publishing. In broad terms, traditional publishers select titles and typically pay advances, while authors may give up some control over rights. Self-publishing gives authors more direct control but leaves them to arrange production and other services themselves.
Hybrid publishing generally involves authors paying upfront for publishing services while retaining a larger share of royalties than in a traditional arrangement. Spines’ model similarly charges authors package fees; the company’s platform coordinates production services rather than asking an author to manage each task separately.
That structure is a trade-off. Authors take on upfront costs, but they can access a bundled workflow and retain creative control. The specific services and terms depend on the package and agreement.
A South Florida publishing-tech story
Spines is headquartered in Boynton Beach, bringing a publishing-technology company into South Florida’s growing mix of local businesses and startups. The region’s story includes many different priorities, from new technology ventures to the protection of the Everglades, and Spines adds an unusual publishing-focused chapter.
The company’s origins trace back to Niv’s own experience trying to publish a book. In a February 2025 interview with Refresh Miami, Niv described the frustration that led him to build Niv Publishing, which Refresh Miami reported eventually became Israel’s largest publishing house. That reporting also noted that Spines already had a South Florida presence at the time. It described roughly 20 of the company’s 100 employees as based in the region in February 2025; the Nov. 9 coverage did not state a current headcount.
The Spines team. Photo via Refresh Miami.
Niv has framed the company’s mission as widening access to publishing. “For most of publishing history, gatekeepers decided who was worthy of becoming an author and which stories deserved to reach the world,” he said in the announcement.
The funding arrives as the company reports a growing base of authors using its services. Whether the platform can make publishing simpler at scale will depend not only on producing books faster, but on helping authors connect with readers. A challenge Spines is addressing through its distribution and marketing tools.
Translation is the next expansion push
Spines’ international plans focus on language access. Its AI translation tools currently support seven languages, including Spanish, French, Italian and German, with native-speaking professionals reviewing translations, according to the company. It plans to expand support to 20 target languages over the next six months.
That expansion could give authors more ways to prepare books for readers in different markets, while keeping human review in the process. For now, Spines’ pitch is straightforward: authors bring the completed manuscript; its AI tools and publishing professionals help with the work that follows.
Read more regional technology reporting in South Florida Digest’s Technology section, and see the original coverage from Refresh Miami and Spines’ announcement.
