Spines, a hybrid book publisher that uses AI agents for editing, covers, translation and marketing, secured $64 million in new capital, Fortune reported exclusively on November 9, 2026. Fortune’s $64 million total combines two different instruments: a $29 million Series A-1 equity round led by Zeev Ventures, with participation from Aleph, NordStar, M-Fund, LionTree and angel investor Dan Senor, and a $35 million facility Spines calls “a non-dilutive growth financing facility” from Twelve, a credit-focused firm. The $35 million is debt-style growth financing, not equity; the two figures should not be read as a single equity raise.
Spines told Fortune its AI-powered services helped it reach a $50 million annual revenue run rate, which the company said was up 400% year over year. Founder and CEO Yehuda Niv said Spines has published more than 8,000 authors and about 12,000 titles, with roughly 400 new writers signing up each month. The company declined to disclose its post-funding valuation.
Niv said Spines will use the debt facility for growth and the equity to build product and expand in English-speaking markets beyond the United States. Codema’s recent funding and listing coverage includes OpenAI’s IPO-readiness comments and 2026 AI-related stock issuance totals; those pieces measure different markets and definitions than Spines’ private round and credit line. Our look at who’s paying for the $10 trillion AI build-out explains why equity and private credit are counted as different instruments.
FAQ
How much did Spines raise, and how is the $64 million split?
Fortune's $64 million total combines a $29 million Series A-1 equity round led by Zeev Ventures and a $35 million growth financing facility from Twelve. The $35 million is debt-style financing, not equity, so the two figures should not be read as a single equity raise.
What does Spines do?
Spines is a hybrid book publisher that uses AI agents for editing, covers, translation and marketing. Founder and CEO Yehuda Niv said it has published more than 8,000 authors and about 12,000 titles, with roughly 400 new writers signing up each month.
What revenue did Spines report?
Spines told Fortune its AI-powered services helped it reach a $50 million annual revenue run rate, which it said was up 400% year over year. These are company figures, and Spines declined to disclose its post-funding valuation.
How will Spines use the money?
Niv said Spines will use the debt facility for growth and the equity to build product and expand in English-speaking markets beyond the United States.
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Carrie F.AI Money desk
Carrie F. is a Codema.ai house byline: a pen name used by our editorial desk, not one individual journalist. It covers AI Money: earnings from Big Tech and chipmakers, AI capital spending and how the build-out is financed, plus plain-English explainers such as free cash flow, EPS and how to read a 10-Q. It's news and analysis, not financial advice. Pieces under this name are written with AI assistance and reviewed by a human editor before they're published.
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