Slang AI Secures $36M in Series B Funding for Hospitality-focused AI Platform

There is something poetic about a company named Slang AI raising a Series B in a world where restaurants live and die by how they talk. Words move tables. Tone moves tips. Timing moves revenue. In an industry that clears more than $1.1 trillion a year, conversation is currency, and Slang AI just proved it knows how to print.

Congratulations to Alex Sambvani, Co-Founder and CEO, and Gabriel Duncan, Co-Founder and former CTO, on locking in this next chapter. Building voice infrastructure for restaurants is not glamorous work. It is operational. It is gritty. It is Tuesday night at 7:12 p.m. when the line is out the door and the phone will not stop ringing. Slang AI stepped into that noise and decided to make it intelligent.

The journey did not start here. A pre-seed round co-led by Active Capital and Underscore VC set the early rhythm around May 2020. Then came an $8 million seed and a $12 million Series A, bringing the total to $20 million before this new raise even entered the chat. Lily Lyman and Brian Devaney at Underscore VC saw it early. Daniel Heck, then at Stage 2 Capital, leaned in before moving on in October 2024. Capital follows clarity, and clarity comes from solving something painfully real.

Restaurants miss calls. Missed calls mean missed reservations. Missed reservations mean empty chairs. Empty chairs do not pay rent. Slang AI built a system that answers every call with context, cadence, and consistency. Not a robotic script. A conversation that understands the flow of service. It listens, it books, it routes, it protects the brand voice when the kitchen is in the weeds. In a business where margins flirt with 0%, that is not a feature. That is survival math.

Gabriel Duncan moving on to found Undeniably.ai in November 2025 is part of the natural evolution of builders who know when to scale and when to start again. Alex Sambvani continues steering the company through a market that rewards precision. This Series B signals that investors believe voice AI in hospitality is no longer experimental. It is infrastructure.

The lesson here is simple and sharp. Pick a problem that bleeds money. Quantify it. Build something that stops the bleeding. Prove it across thousands of real interactions. Then raise from partners who understand operators, not just optics. Slang AI did not chase hype cycles. It chased phone calls.