Spines Raises $64M to Expand Its AI Publishing Platform

Spines, a Boynton Beach, FL-based agentic AI publishing platform built to help authors turn written manuscripts into professionally published books, has raised $64 million in a funding round.

The financing included a $29M Series A-1 equity round led by Zeev Ventures, with participation from Aleph, NordStar, M-Fund, LionTree, and Dan Senor, combined with a $35M non-dilutive growth financing facility from Twelve.

The company will use the funds to accelerate its expansion and improve its AI-powered translation capabilities, with plans to support 20 target languages over the next six months.

What is Spines?

Founded by Yehuda Niv, Spines develops an AI-powered publishing platform that helps authors turn manuscripts into professionally published books.

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Its platform uses specialised AI agents to support different stages of publishing, including editing, proofreading, cover design, formatting, translation, audiobook production, distribution, marketing and royalty management.

The AI agents can review manuscripts, suggest book covers, research suitable retail categories and prepare different versions of a book. The platform also offers audiobook creation, illustration tools for children's books and royalty tracking across more than 100 global distribution channels.

Spines primarily serves independent authors who do not have traditional publishing agreements. It combines AI tools with support from human publishing professionals to help authors manage the publishing process.

How Much Funding Has Spines Raised?

Spines has secured $64 million in combined financing.

This includes:

• $29 million Series A-1: An equity round led by Zeev Ventures.
• $35 million growth financing facility: Non-dilutive financing provided by Twelve.

The company has not disclosed details of its previous funding rounds or total equity funding raised before this announcement.

Who Invested in Spines’ Series A-1?

The $29 million Series A-1 round was led by Zeev Ventures.

Other participating investors include:

• Aleph
• NordStar
• M-Fund
• LionTree
• Dan Senor

Separately, Twelve provided the $35 million non-dilutive growth financing facility.

Why the Funding Matters

Spines will use the financing to accelerate its business expansion and strengthen its AI-powered publishing tools.

A key priority is expanding its translation capabilities to cover 20 target languages over the next six months. This could help authors prepare their books for readers in more markets.

The company also plans to continue developing its AI publishing technology while maintaining human support for decisions that require author input.

Who founded Spines?

Spines was founded by Yehuda Niv. The company is headquartered in Boynton Beach, Florida. The founding year was not disclosed.

Niv said that Spines only publishes books "100% written by humans" and that it uses software to try to weed out AI-generated manuscripts. "We are not here to replace [authors] with AI," he said, insisting that Spines exists to "empower" human writers.

Market and Business Growth

Spines has around 350 employees, according to Niv, with approximately 50 working in research and development. Most of the remaining team supports authors through customer success and publishing services.

The company has published roughly 10,000 authors in Israel, according to Niv, and now sells its platform directly to independent authors.

Spines is also exploring opportunities beyond direct sales. Niv said the company is in early discussions with one of the Big Five US publishers about a potential partnership to use its AI agents in the publisher's services.

What Happens Next?

Spines plans to expand its operations and develop translation support for 20 target languages over the next six months.

The company will also continue improving its AI agents and publishing services. Alongside its direct offering for independent authors, it is exploring potential partnerships with traditional publishing houses.

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