Top California Conversational AI Companies (57)

Artera is a patient communication and engagement platform designed to assist healthcare providers in managing and automating interactions with patients through various channels, including text, email, phone, and voice AI agents. This innovative solution caters to a diverse range of healthcare entities, such as specialty practices, Federally Qualified Health Centers (FQHCs), health systems, and federal agencies, all of which require...

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...

For over a decade, we built the infrastructure behind conversations, chat, voice, video, messaging APIs. We became the #1 CPaaS platform for in-app communications. 4,000+ brands trust us. 7 billion messages flow through our platform every month. 300 million monthly active users. We powered conversations for DoorDash, Match Group, Noom, Yahoo Sports, Rakuten, and thousands of others. We were good at...

EliseAI builds vertical AI agents for housing and healthcare — sectors that together make up nearly 40% of household spending. These agents automate high-volume workflows like leasing, maintenance, renewals, and patient intake, helping organizations cut costs, improve efficiency, and deliver better experiences. How does it work? EliseAI integrates directly into operational workflows: Housing: Manages leasing, maintenance, renewals, billing, and resident communication. Healthcare: Handles intake,...

Creating revolutionary open-ended conversational applications through breakthrough research.

From call center automation and form intake to referrals, document processing, outreach, and payments, we manage the entire patient journey for providers. Our platform is the most widely used AI agents platform for the patient journey, built on 190 million patient interactions across 23 specialties and a model that handles the complexity general-purpose AI can't. Healthcare organizations see a 5% lift...

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...

At SoundHound Inc., we believe every brand should have a voice. As the leading innovator of conversational technologies, we’re trusted by top brands around the globe. Houndify, our independent Voice AI platform, with 70,000+ users, allows brands to create custom voice assistants that deliver results with unprecedented speed and accuracy. Our mission is to enable humans to interact with the things...

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...

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,...

At Constant Contact we empower business owners and nonprofit leaders to follow their passions, grow, and succeed. We deliver success for our customers and our people. Relationships and connection are at the core of everything we do. We connect our customers to the tools they need to grow and succeed. We build strong relationships with our customers so they have...

TechAhead, a global leader in AI-powered custom software development, cloud engineering, and scalable iOS & Android mobile app development, trusted by Fortune 500 companies and enterprises worldwide. Founded in 2009, we are a Great Place to Work–certified company with 240+ experts and 16 years of experience in engineering innovative, scalable applications. We've partnered with leading brands like Audi, Disney, JLL, American...

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...

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...

PolyAI builds enterprise conversational assistants that carry on natural conversations with customers to solve their problems. Our conversational assistants understand customers, regardless of what they say or how they say it.

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.

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.

Sprinklr is a provider of enterprise software for customer experience management. We help brands turn public conversations on modern channels into valuable insights to improve marketing, advertising, customer service, product development and more. Sprinklr has five products on one platform: Modern Marketing, Modern Advertising, Modern Research, Modern Care and Modern Engagement. Sprinklr’s unified platform allows siloed teams to collaborate and deliver...

SmartDocs develops AI-powered enterprise software for document and business-process management. Its offerings combine intelligent document management with SmartGPT, enterprise chatbots, business process management (BPM), enterprise content management (ECM), and source-to-pay (S2P) process solutions. The company’s mission is to simplify document handling and help global corporations make procurement and related workflows more efficient, productive, and easier to manage across complex organizational...

RingCentral is a global leader in AI-powered trusted business communications, contact center, revenue intelligence, video and hybrid event solutions. RingCentral empowers businesses with conversation intelligence and unlocks rich customer and employee interactions to provide insights and improved business outcomes.