Top California Conversational AI Startups (38)

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...

HelpSquad is a business process outsourcing (BPO) company providing managed customer service, 24/7 live chat, call-center, and virtual assistant solutions. Its remote teams handle customer-facing and administrative tasks such as emails, phone calls, scheduling, CRM updates, and support requests. The company serves healthcare, legal, financial services, real estate, e-commerce, and other businesses, with U.S.-based management and global delivery across multiple...

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...

Palo Alto | Small AI Startup | Top Pay, 100% Cash | Actively Hiring Engineers CHAI AI is a small, 20-person AI startup in Palo Alto building a social AI platform, where millions of people create, share, and chat with AI characters. As of September 2026, CHAI has 10 million active users and $100M in annual recurring revenue, and has grown 3x...

KYTE is developing an AI-agent operating system intended to provide “agent coworkers” for individuals and organizations. Its platform lets users create, manage, and assign jobs to autonomous agents, review their outputs, and coordinate interactions between humans and agents. The system uses guardrails and automation frameworks to support reliable, safe work, including digital twins and voice, SMS, and email agent capabilities.

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...

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,...

CarLabs developed an AI-driven conversational commerce platform for automotive brands. Its scalable digital assistants, including Kia’s Kian, help automakers and dealers engage customers throughout the vehicle lifecycle. The company’s technology combines conversational interfaces, machine learning, automotive data, and digital assets to support sales, marketing, customer service, and ownership communications across websites, messaging channels, and other digital touchpoints while improving engagement...

We fix why calls go uanswered, why advisors & reps spend their day on status updates instead of selling, why managers get blindsided by bad CSI reviews, and why every department operates in its own silo. Numa's AI agents answer and route every call, book appointments automatically, send proactive RO status updates, flag heat cases before CSI takes the hit, follow...

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.

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...

We empower districts with accredited middle and high school original credit, credit recovery, and multilingual courses that meet the needs of today’s learners and educators. Our platform was built from the ground up based on extensive feedback from educators and team members who understand firsthand the challenges of teaching today's digital-native students. Teachers told us they needed better ways to...

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...

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...

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.

Monogram is the first platform that lets LLMs control the entire user experience. By combining voice with UI generated on the fly, we create an experience that’s far more powerful and engaging than a chatbot. We believe this paradigm will redefine how software is built.

Creating revolutionary open-ended conversational applications through breakthrough research.

The proactive AI assistant built for high-velocity teams.

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.

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.