Top California Conversational AI Startups (33)

Deepgram is the leading voice AI platform for developers building speech-to-text (STT), text-to-speech (TTS) and full speech-to-speech (STS) offerings. 200,000+ developers build with Deepgram’s voice-native foundational models – accessed through APIs or as self-managed software – due to our unmatched accuracy, latency and pricing. Customers include software companies building voice products, co-sell partners working with large enterprises, and enterprises solving...

Replicant is a company that uses AI to automate customer service requests and resolve conversations, enabling contact centers to deliver exceptional customer service and empowering agents to focus on more complex issues.

Creating revolutionary open-ended conversational applications through breakthrough research.

SuperDial is a voice AI company automating the phone calls that drain time and money from healthcare operations. Its voice AI agents handle benefits verification, prior authorization, claims follow-up, credentialing, and other RCM workstreams, freeing up revenue cycle teams to focus on what matters. Customers include leading provider organizations, billing companies, and payers.

At 11x, we’re not just building tools—we’re redefining how work gets done. We build autonomous digital workers that execute entire go-to-market workflows, end-to-end. Instead of just augmenting tasks with AI, 11x automates the full execution of sales, marketing, and RevOps processes so teams can focus on what they do best: building relationships, closing deals, and driving impact. Our technology integrates across...

Parakeet Health is building the AI-powered operating system for medical practices. Today, healthcare runs on phone calls, faxes, and manual labor, and everyone feels it. Practices burn through staff juggling inbound calls, chasing referrals, and filling last-minute cancellations, while patients sit on hold, wait weeks to hear back, and fall through the cracks when overloaded teams can't keep up. Our conversational...

Elicit, the AI research assistant, helps you automate time-consuming research tasks like summarizing papers, extracting data, and synthesizing your findings.We're a public benefit company with a mission is to scale up good reasoning. We want machine learning to help as much with thinking and reflection as it does with tasks that have clear short-term outcomes.

As crazy as it sounds, humanity has already free itself once — from hard, menial work. We’re just finishing the job, and using AI agents to get us rid of knowledge work. Our goal is to build "AI employees" which can collaborate with humans and other AI employees alike, over all channels (email, Slack, Zoom, etc), pursue ambiguous goals in changing...

1mind is a platform that deploys multimodal AI-powered Superhumans for revenue teams. These Superhumans combine a face, a voice, and a GTM brain, equipped with deep technical and product knowledge, to lead unlimited, simultaneous conversations 24/7, qualifying leads, booking meetings, and driving measurable impact.

Quo is a modern business phone system that brings all your calls, texts, and customer information together in one easy-to-use, AI-powered platform. It helps your team stay organized and respond faster, so you can give every customer a great experience. AI handles busywork like logging calls, organizing messages, answering FAQs, and seamlessly hands off conversations to your team when needed. Whether...

PromptQL is an enterprise AI company building a platform that helps organizations use natural language to analyze data, understand operations, and automate work with greater accuracy and trust. Founded by the team behind Hasura, the company focuses on making AI useful in real business environments where data is fragmented across systems and context matters. PromptQL connects AI to business logic,...

Level AI (https://thelevel.ai) is a Mountain View, CA and Delhi, India based startup innovating in the Voice AI space. We are backed by top VCs, technologists from Silicon Valley and industry experts. We are on a mission for AI to augment the worker and not replace them. We are innovating in speech AI, NLP and information retrieval systems to bring...

Wonder Dynamics a media-tech startup developing an AI production tool that would allow indie filmmakers to deliver blockbuster-level VFX on a fraction of the budget.

The proactive AI assistant built for high-velocity teams.

Specialty-specific generative voice AI that answers patient calls. Free your patients from waiting on hold. 9M+ patient interactions served with Voice AI. -63% operational costs. +3% net new patients. 5 weeks to go live. Trusted by thousands of providers across leading healthcare organizations: Palm Beach Orthopedics Institute, SharedPractices, Peninsula Orthopedics Associates, MDCS Dermatology, Cleaver Medical Group, Northern California Retina Vitreous Associates,...

Scale your voice generation with PlayAI's Text to Speech models that can clone and generate speech with hyper-realism across any language, accent and dialect

Collectly is a fast-growing healthcare tech startup leading the charge in transforming the U.S. healthcare market through AI-driven innovation. In the U.S., millions of patients interact with healthcare providers daily, navigating a system that often struggles with inefficiencies, administrative burdens, and suboptimal financial experiences. At the forefront of the AI boom, Collectly is redefining revenue cycle management (RCM) by applying cutting-edge...

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Cypris is the vertical AI platform for corporate R&D and innovation teams. We centralize scientific papers, patents, market news, and company intelligence into a single platform with over 500M+ global data points. On top of this foundation, we’re building AI Agents tailored to R&D workflows, powered by the latest models from OpenAI, Anthropic, and others. With Cypris, teams can manage projects,...

We're building the Superhuman Sports AI Teammate — transforming sports video and data into instant insights for coaches and individual athletes. Snapp is a sports Large Visual Memory Model (LVMM) using agentic system and multimodal encoding that processes visual, audio, and contextual information for human-like understanding of sports content. Our platform enables semantic search, content retrieval, and multi-video analysis across unlimited...