Smallest.ai, a full-stack enterprise Voice AI platform, has raised $8 million in its seed funding round led by Sierra Ventures, with participation from 3one4 Capital and Better Capital.
The funds raised will be used to accelerate its vision of making fast, multilingual, and production-ready AI agents the new standard for enterprise communication.
Founded in 2023 by Sudarshan Kamath and Akshat Mandlo, Smallest.ai is an enterprise Voice AI platform headquartered in San Francisco, building voice agents optimized for quality, latency, and privacy. Its in-house Lightning model and ecosystem enable enterprises to automate millions of interactions across domains like support, debt collection, and pre-sales.
The platform supports 100+ voices, dozens of languages, and integrates seamlessly with CRMs, telephony, messaging, and email systems.
Sudarshan Kamath, Founder of Smallest.ai, said, “Voice is the most natural way humans connect, yet enterprises are stuck with outdated tools that frustrate customers and overburden agents. Our mission is simple: make speaking to AI as effortless and reliable as speaking to another person. We believe every enterprise interaction can be faster, more empathetic, and more human-like.”
Akshat Mandloi, Co-founder and CTO of Smallest.ai, said, “Our in-house models aren’t just about speed-they’re about enterprise reliability. We’ve engineered natural speech understanding, guardrails, and expressiveness into a single coherent stack. That means enterprises can launch agents in days, not months – without worrying about hallucinations or integration headaches.”
Ashish Kakran, Partner at Sierra Ventures, said, “Voice is emerging as the next frontier in enterprise AI, and Smallest has built one of the most exciting platforms we’ve seen. Sudarshan and Akshat are customer-obsessed technical founders who understand what enterprises truly need…agents that are fast, secure, and production-ready.”
