Enttor Launches the Only Outbound Messaging Software Startups Need

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10:00 AM on Tuesday, December 9

The Associated Press

NEW YORK--(BUSINESS WIRE)--Dec 9, 2025--

Enttor, the company building a unified AI layer for outbound messaging, announces its next-generation platform. Enttor’s technology identifies high-intent prospects across social platforms, crafts personalized outreach messages that match brand voice, and carries human conversations across LinkedIn, X, and Instagram. Unlike traditional AI SDRs focused solely on email or marketing automation tools, Enttor operates where business conversations are actually happening, in direct messages.

As the workforce becomes more digital and global, business communication is fragmenting across more channels, yet most startups still rely on email-first outreach tools designed for a previous era. The result is sales and growth teams are drowning in manual work across disconnected platforms, unable to scale personalized outreach without increasing headcount.

Customers including Fireflies, the AI meeting suite unicorn, use Enttor to scale personalized outreach for marketing communications. SideShift, a UGC marketplace, leverages the platform to source UGC creators from Instagram and generate B2B sales leads from X. Early adopters have reported increases in outreach efficiency, engagement quality, and revenue performance, demonstrating the immediate impact of AI-powered outbound automation. Additional capabilities and channel expansions are planned as demand accelerates.

"We witnessed this shift firsthand. Given the mass adoption of AI, every company is expected to do more with less people. Startup teams are getting leaner yet revenue per headcount has increased. Business is longer done on just email," said Zinnie Zhang, CEO and Founder of Enttor. Zhang, studied computer science at Vanderbilt, dropped out of Harvard Law, and previously worked in enterprise marketing SaaS at Yext, started Enttor after recognizing that the fragmentation of business communication required a fundamentally new approach to outbound automation.

Enttor is defining a new category at the intersection of four markets: B2B social outbound ($8.5B), social marketing automation ($3.8B), SMS marketing ($12B), and AI SDR ($4.3B). This represents a combined $28.6B total addressable market. As business communication continues shifting from phone and email to LinkedIn, X, Instagram, Telegram, and emerging platforms, the company is positioned to become the standard infrastructure layer for outbound messaging.

The company is advised by Nicholas S. Zeppos, former Chancellor of Vanderbilt University for over 11 years. His guidance and network helped Enttor secure its first enterprise contract and shaped the company's early growth strategy. Enttor has raised $410K from MaC Venture Capital, and strategic angel investors from a16z, Bessemer, and Chemistry VC.

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SOURCE: Enttor

PUB: 12/09/2025 10:00 AM/DISC: 12/09/2025 10:00 AM

http://www.businesswire.com/news/home/20251209915545/en