# | Company | Description | HQ Location | Team Presence | Founded | Employees | Total Funding Raised | Funding Status |
|---|---|---|---|---|---|---|---|---|
Total Companies183 | ||||||||
1 | AssemblyAI is the best way to build Voice AI apps. We build the industry’s best speech-to-text and speech understanding models, including promptable speech recognition, that serve as critical infrastructure for top Voice AI products like Granola, Dovetail, Ashby, and Cluely.
Our speech-to-text models lead the industry in accuracy and quality, so you can build reliable product experiences on top of voice data. And our Speech Understanding models help you go beyond transcription to uncover insights, identify speakers, and highlight key information.
We make it simple to get started, with a developer-first API and usage-based pricing that scales effortlessly to millions of hours. | United States | United States (64.9%), United Kingdom (8.1%), Germany (5.4%) | 2017 | 51-200 | $143,120,000 | Series C, $30.00M, December 12, 2025 | |
2 | Deepgram is the real-time API platform powering the trillion-dollar Voice AI economy.
Backed by a $130M Series C at a $1.3B valuation, Deepgram is trusted by 200,000+ developers and 1,300+ organizations to build Voice AI products, platforms, and autonomous agents with the lowest latency, highest accuracy, and enterprise reliability.
Our voice-native foundation models and runtime infrastructure have processed 50,000+ years of audio and over 1 trillion words, making Deepgram the most experienced voice AI platform in the world.
Industry-leading models & platform:
👂 Nova-3 — the world’s most accurate real-time speech-to-text model
🔊 Aura-2 — professional, enterprise-grade text-to-speech
💬 Flux — the first Conversational Speech Recognition model designed to handle interruptions
🚀 Voice Agent API — enterprise-ready, real-time conversational AI
🧠 Saga — the Voice OS
Beyond core infrastructure, Deepgram is expanding the Voice AI ecosystem through:
💪 Powered by Deepgram, supporting voice products built by leading AI startups and enterprise organizations
🌉 A new Voice AI Collaboration Hub in San Francisco for builders, partners, and the voice community
🍔 The acquisition of OfOne, delivering real-time Voice AI for restaurants and drive-thru operations with 95%+ containment
📃 A growing patent portfolio in Voice AI
Much like APIs powered the payments and cloud economies, Deepgram is building the foundation for a trillion-dollar B2B Voice AI economy—centered on the most natural human interface: voice. | United States | United States (75%), Philippines (5.9%), United Kingdom (3.7%) | 2015 | 201-500 | $215,920,000 | Series C, August 18, 2026 | |
3 | OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. AI is an extremely powerful tool that must be created with safety and human needs at its core. OpenAI is dedicated to putting that alignment of interests first — ahead of profit.
To achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity. Our investment in diversity, equity, and inclusion is ongoing, executed through a wide range of initiatives, and championed and supported by leadership.
At OpenAI, we believe artificial intelligence has the potential to help people solve immense global challenges, and we want the upside of AI to be widely shared. Join us in shaping the future of technology. | United States | United States (82.1%), United Kingdom (3.9%), India (2%) | 2015 | 1001-5000 | $201,125,120,000 | Venture - Series Unknown, $75.00M, April 22, 2026 | |
4 | Speechify is the Voice AI Assistant you’ve always wanted.
Speechify reads, types, talks, and answers for you. Trusted by 50+ million users.
Want to read faster? Speechify reads any Google Doc, PDF, webpage, or book aloud in 1000+ lifelike voices across 60+ languages, at up to 4.5x speed.
Have a question? Just ask – Speechify already has context from the articles, books, and documents on your screen. It’s like talking to ChatGPT, but faster and with more context.
Want to type faster? Speak naturally and Speechify will type every word for you.
Speechify combines the world’s most human-sounding text to speech (TTS), voice typing dictation, and voice assistant technology.
== Speechify Features ==
➤ Listen at any speed
Hear anything up to 4.5× faster (900 wpm). Learn more in less time with voices that sound natural even at high speed.
➤ Listen on desktop or mobile devices.
Your library syncs instantly across desktop and mobile. Start reading on Chrome, continue on iOS or Android – anytime, anywhere.
➤ Human-like voices
Speechify voices feel real, including official partners like Snoop Dogg, MrBeast, and Gwyneth Paltrow and 200+ others.
➤ Screenshot image to audio
Take a picture or screenshot of any text and Speechify will read it aloud instantly.
➤ Floating widget
Always at your fingertips – move it, dock it, or hide it entirely for a distraction-free experience.
➤ Voice Typing
Dictate emails, essays, or prompts directly into any website. Type 3–5× faster just by talking.
➤ Talk to Speechify
Ask: “What are the main takeaways?” or “Quiz me on this essay.” Speechify understands your articles, documents, and anything on your screen – it’s your personal AI reader, assistant, and tutor in one.
➤ Other features
• Active highlighting for reading along.
• Inline player on every site.
• One subscription synced across all devices.
== Joining Speechify ==
We're actively hiring across every role.
Please go to speechify.com/careers to apply! | United States | India (17.5%), United States (17.5%), Philippines (7.7%) | 2017 | 51-200 | $340,000,000 | Series B, $170.00M, December 14, 2021 | |
5 | mpathic is keeping humans safe in the AI era through technology-enabled, expert-led human data and evaluation services.
We work with frontier AI builders to prevent harmful or unwanted model behaviors, spanning use cases from user wellbeing and mental health to financial risk and customer support, across the full AI model lifecycle.
mpathic Experts create multi-modal ground-truth datasets, trajectories, annotations and role plays for use in red teaming and benchmarking. Experts have specialization in behavioral analysis, conversational design, and high-risk/high-accuracy areas.
We partner with Responsible AI and Trust & Safety teams to support global deployment, policy enforcement, and ongoing risk mitigation to strengthens both model quality and real-world safety.
Learn more at mpathic.ai | United States | United States (87.4%), United Kingdom (3.4%), Indonesia (3.4%) | 2021 | 51-200 | $51,340,000 | Series A, $23.07M, February 9, 2026 | |
6 | Built from a decade of voice and emotion research.
To build emotionally intelligent voice AI, we first had to define what “good” sounds like – not just acoustically, but perceptually and in real human conversations.
That led us to build the research infrastructure behind expressive, trustworthy voice AI: scientifically grounded datasets, speech models, evaluation frameworks, and human preference pipelines. Today, we make that infrastructure available to frontier labs and AI-native companies building the next generation of voice.
Whether you’re building foundation models, fine-tuning voice agents, or evaluating production systems, Hume provides the tools to measure, improve, and align voice AI the way people actually experience them.
| United States | United States (78.7%), Poland (8.5%), Philippines (4.3%) | 2021 | 11-50 | $90,541,859 | Venture - Series Unknown, $17.77M, July 9, 2025 | |
7 | We build next-generation AI infrastructure that powers real-time voice intelligence. Our platform unifies speech-to-text, text-to-speech, and large language model orchestration into a single GPU-accelerated neural engine. Designed for developers and enterprises, we deliver scalable, reliable, and secure Voice AI solutions that transform audio data into actionable insights. | United States | — | 2023 | 11-50 | $274,466 | Series A, $127.79K, January 16, 2026 | |
8 | Hyro, the leading Agentic Care Communications Platform for healthcare, enables health systems to safely automate workflows and conversations across their most valuable platforms, services, and channels—including call centers, websites, SMS, mobile apps, and more.
Hyro's clients, which include Intermountain Health, Baptist Health, and Hackensack Meridian Health, benefit from AI assistants that are fully HIPAA-compliant, fast to deploy, easy to maintain, and simple to scale—generating better conversations, successful patient outcomes, and revenue-driving insights. | United States | Israel (54.4%), United States (45%), United Kingdom (0.7%) | 2018 | 51-200 | $95,000,000 | Venture - Series Unknown, $45.00M, October 21, 2025 | |
9 | Maven AGI builds enterprise-ready AI agents to support the full customer journey, with a focus on complex, high-friction enterprise environments. Its platform serves as a connected, intelligent operating layer that unifies systems, syncs functions, and orchestrates real-time action across the enterprise. Maven’s mission is to build Business AGI.
Founded in 2023 by executives from HubSpot, Google, and Stripe, Maven AGI began by transforming customer service with autonomous agents capable of resolving up to 93% of inquiries. Today, organizations use Maven to bridge silos across support, sales, and operations—replacing broken handoffs with dynamic, context-aware workflows.
Maven has raised $78M from top investors, including Dell Technologies Capital, Cisco Investments, SE Ventures, Lux Capital, M13, and E14. The company supports a diverse and growing portfolio of leading enterprises ranging from publicly traded companies like Ibex (NASDAQ: IBEX), Tripadvisor (NASDAQ: TRIP), and SS&C Technologies (NASDAQ: SSNC), to fintech innovators like Rho, Check, and Papaya Pay, legal leaders like Clio, and fast-emerging consumer brands such as Paris Hilton’s Parivie Beauty.
| United States | United States (100%) | 2023 | 51-200 | $78,000,000 | Series B, $50.00M, June 18, 2025 | |
10 | Get insight into your customer reality with Revenue Intelligence
Our data-driven revenue intelligence platform will help you raise your sales conversion rates, generate more revenue and lower your customer service costs.
Improved conversations that close more deals - it's time to get insights on customers behavior patterns and provide your sales team with effective feedback!
Conversational Intelligence
We gather all the data from the interactions between your agents and customers. We provide you with a reliable, data-driven and fully automated report of your prospective customer behaviors and solutions for the future.
Cognitive Automation - coming soon
We help you automate and optimize your call center operations. We automatically build voice bots that will make customer interactions easier… and cost-effective! | Poland | Poland (100%) | 2016 | 11-50 | $4,371,747 | Series A, $2.77M, April 26, 2020 | |
11 | 𝗧𝘂𝗿𝗻 𝗘𝘃𝗲𝗿𝘆 𝗖𝗼𝗻𝘃𝗲𝗿𝘀𝗮𝘁𝗶𝗼𝗻 𝗶𝗻𝘁𝗼 𝗚𝗿𝗼𝘄𝘁𝗵
Founded in 2018 by a team with international experience, 𝗦𝗼𝘃𝗿𝗮𝗻 𝗔𝗜 develops conversational automation solutions that manage 𝗺𝗶𝗹𝗹𝗶𝗼𝗻𝘀 𝗼𝗳 𝗶𝗻𝘁𝗲𝗿𝗮𝗰𝘁𝗶𝗼𝗻𝘀 𝗲𝘃𝗲𝗿𝘆 𝘆𝗲𝗮𝗿 for some of the 𝘄𝗼𝗿𝗹𝗱’𝘀 𝗹𝗲𝗮𝗱𝗶𝗻𝗴 𝗽𝗹𝗮𝘆𝗲𝗿𝘀.
The company operates across multiple verticals — 𝗧𝗲𝗹𝗰𝗼 & 𝗠𝗲𝗱𝗶𝗮, 𝗘𝗻𝗲𝗿𝗴𝘆 & 𝗨𝘁𝗶𝗹𝗶𝘁𝗶𝗲𝘀, 𝗥𝗲𝘁𝗮𝗶𝗹, 𝗛𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲, 𝗕𝗮𝗻𝗸𝗶𝗻𝗴 & 𝗜𝗻𝘀𝘂𝗿𝗮𝗻𝗰𝗲, 𝗮𝗻𝗱 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗮𝗹 𝗘𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲𝘀 — with an international presence spanning 𝟱 𝗼𝗳𝗳𝗶𝗰𝗲𝘀 𝗼𝗻 𝟮 𝗰𝗼𝗻𝘁𝗶𝗻𝗲𝗻𝘁𝘀 and a team of 𝗼𝘃𝗲𝗿 𝟭𝟬𝟬 𝗽𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹𝘀.
The results speak for themselves:
𝟭𝟮+ 𝗺𝗶𝗹𝗹𝗶𝗼𝗻 𝗶𝗻𝘁𝗲𝗿𝗮𝗰𝘁𝗶𝗼𝗻𝘀 managed annually
-𝟱𝟬% average call handling time
-𝟮𝟳% operational costs over 3 years (~€2M)
+𝟴𝟱% First Call Resolution
+𝟲𝟯 NPS points (Net Promoter Score)
𝗦𝗼𝘃𝗿𝗮𝗻 𝗔𝗜 𝗮𝗱𝗼𝗽𝘁𝘀 𝗮 𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲-𝗯𝗮𝘀𝗲𝗱 𝗺𝗼𝗱𝗲𝗹, 𝘄𝗶𝘁𝗵 𝗻𝗼 𝗳𝗶𝘅𝗲𝗱 𝗰𝗼𝘀𝘁𝘀: clients pay only for the results achieved. This approach 𝗲𝗹𝗶𝗺𝗶𝗻𝗮𝘁𝗲𝘀 𝘂𝗽𝗳𝗿𝗼𝗻𝘁 𝗿𝗶𝘀𝗸𝘀, accelerates adoption, and ensures 𝗳𝘂𝗹𝗹 𝗮𝗹𝗶𝗴𝗻𝗺𝗲𝗻𝘁 𝗯𝗲𝘁𝘄𝗲𝗲𝗻 𝗴𝗲𝗻𝗲𝗿𝗮𝘁𝗲𝗱 𝘃𝗮𝗹𝘂𝗲 𝗮𝗻𝗱 𝗽𝗿𝗶𝗰𝗶𝗻𝗴. | United Kingdom | Brazil (65.2%), Italy (21.7%), United Kingdom (4.3%) | 2020 | 51-200 | $12,980,000 | Venture - Series Unknown, $12.98M, April 22, 2025 | |
12 | Headquartered in Boulder, CO since 2000, nVoq is a privately backed provider of SaaS workflow enablement solutions (the nVoq Platform) supporting the in-home healthcare industries. Our HIPAA and PCI-DSS-compliant solutions platform leverages “best in breed” technology components to optimize accuracy, availability and scale. The cloud-based nVoq Platform contains a portfolio of medically infused speech recognition client applications as well as Application Programming Interfaces (APIs) which are sold as SaaS offerings.
For more information about the nVoq Platform or our client applications, please contact us at sales@nvoq.com
| United States | United States (95.7%), Peru (2.1%), Colombia (2.1%) | 2000 | 51-200 | $750,000 | Venture - Series Unknown, $750.00K, September 29, 2025 | |
13 | Sonicaora Systems Inc. is an AI-powered audio and speech intelligence company focused on helping businesses and developers analyze, understand, and generate audio using advanced artificial intelligence technologies. The company develops scalable solutions for speech recognition, voice synthesis, audio analytics, and real-time audio processing, enabling organizations to transform unstructured voice data into actionable insights and intelligent automation systems.
Sonicaora’s platform acts as a unified audio intelligence layer that combines speech-to-text processing, voice generation, audio categorization, and AI-driven speech understanding into a single ecosystem. The platform is designed to support enterprises, SaaS companies, customer support operations, media organizations, and developers building voice-enabled applications and communication systems.
The platform enables users to process audio streams, extract meaningful information from conversations, generate natural human-like speech, and structure voice data for search, retrieval, and analytics. Through scalable APIs and real-time processing infrastructure, Sonicaora supports modern applications requiring intelligent voice interaction, automated transcription, speech analytics, and audio intelligence workflows.
Sonicaora is also focused on building high-performance AI infrastructure for compute-intensive audio workloads, including speech analysis pipelines, waveform processing systems, and real-time inference environments. The company’s vision is to make audio data more accessible, searchable, and actionable through AI-powered intelligence systems.
Founded in 2023, Sonicaora Systems Inc. is headquartered in San Francisco, California, and is developing the next generation of AI audio intelligence solutions for enterprise and developer ecosystems. | United States | — | 2023 | 11-50 | $314,000 | Series A, $134.00K, June 5, 2025 | |
14 | Developer of a synthetic voice and video platform designed to help users enjoy voice services anytime and anywhere. The company's technology offers secure voice services at the level of the vocal cords that reflect intonation and delicate features that extract human voices and synthesize them into arbitrary text, enabling clients to create voice-over content without tedious recording steps. | United States | — | 2017 | 51-200 | $11,250,000 | Venture - Series Unknown, $11.25M, December 9, 2025 | |
15 | Zappix provides an AI-Powered Digital Engagement Platform. Zappix transforms the user journey during customer service interactions – engaging through Digital Outreach, deflecting inbound inquiries using Digital Self-service (Visual IVR), and optimizing agents’ activities using Digital Agent Assist.
The cloud-based platform enables workflow automation, rapid developments, and integration to back-end systems and provides an actionable Analytics Suite. The Zappix solution provides significant benefits and ROI: reducing costs by increasing containment rates for contact centers, improving customer experience and Net Promoter Score (NPS), creating new revenue opportunities using targeted promotional banners, and automating revenue-generating use cases. | United States | United States (50%), Armenia (33.3%), Israel (8.3%) | 2011 | 11-50 | — | Venture - Series Unknown, January 25, 2017 | |
16 | Observe.AI is the AI Agents platform for customer experience, designed to help organizations deliver faster, smarter, and more efficient customer service at scale. The platform enables businesses to deploy specialized AI agents that autonomously execute work across the full CX lifecycle—from handling customer conversations to supporting frontline teams and optimizing operations.
Each AI agent is purpose-built for a specific role, equipped to understand context, make decisions, take action, and continuously improve outcomes. This allows organizations to increase resolution speed, elevate service quality, and reduce operational costs while empowering your frontline team to focus on higher-value work.
Built on a CX-native foundation, Observe.AI works with global brands, like DoorDash, Transcarent, Affordable Care, Signify Health, and Verida, to improve customer satisfaction, boost productivity, and deliver consistent, scalable performance across every customer interaction. | United States | India (64.7%), United States (32.9%), Canada (0.8%) | 2017 | 201-500 | $214,020,000 | Series C, $125.00M, April 12, 2022 | |
17 | Talkative empowers contact centre leaders with a secure AI layer that’s flexible, fast to deploy, and easy to manage.
With our unique knowledge base and prompt methodology, we provide a complete AI solution that delivers accurate and brand-aligned customer service across channels, integrates with existing systems, and seamlessly escalates to humans when needed.
Learn more at: https://gettalkative.com | United Kingdom | United Kingdom (89.5%), United States (5.3%), Canada (5.3%) | 2016 | 1-10 | $1,457,058 | Venture - Series Unknown, $630.00K, March 9, 2022 | |
18 | Dialpad is the leading AI-powered communications intelligence platform creating human-first, AI-enhanced solutions that will drive the next wave of how businesses communicate with and serve their customers. Enterprise customers such as Randstad, RE/MAX, Nasdaq, Express Scripts, T-Mobile, Johns Hopkins, Motorola Solutions, Tractor Supply, and Netflix use Dialpad and its AI capabilities to deliver amazing customer experiences. Supported by notable investors such as Andreessen Horowitz, GV, ICONIQ Capital, and OMERS, Dialpad is a dynamic force in AI technology with a rapidly expanding presence. Visit dialpad.com to learn more. | United States | United States (44.4%), Canada (16.4%), Philippines (12.6%) | 2011 | 1001-5000 | $450,000,000 | Series F+, $50.00M, December 21, 2022 | |
19 | With Mia, your dealership will never miss a call again. We build AI that helps dealerships save time, close more deals, and give customers a better experience, turning missed connections into revenue 24/7/365.
With human-like response time, Mia fully integrates into dealership systems to answer calls and texts, check inventory, set appointments, and notify your staff across sales, service, and reception.
📍 Built by a team of automotive operators and AI engineers
🤝 Trusted by hundreds of dealers across the country
⚙️ Seamlessly integrates into existing dealership systems
🗣️ Naturally detects and answers in multiple languages
🚀 Proudly partnered with Microsoft to secure your data
Whether you're looking to reduce manual tasks, recover missed opportunities, or give your team tools they’ll actually use, Mia makes AI practical, powerful, and ready to handle the conversations so your team can convert more customers.
Let’s build the future of dealership performance.
🔗 mia.inc | United States | United States (100%) | 2023 | 51-200 | $28,999,994 | Series A, $20.00M, January 22, 2026 | |
20 | Connex One is a cloud based, omni-channel engagement platform. Much more than just a predictive dialler, it has enhanced functionality and data analytics to give you a deeper understanding of your customers and the tools to connect with them for unparalleled results.
One platform, every customer. | United Kingdom | — | 2013 | 501-1000 | $103,035,332 | Series C, $103.04M, October 10, 2022 | |
21 | Sanas is the world's first and most trusted real-time Speech AI platform.
We are the real-time speech layer for the modern world, making conversations between people clear, natural, and scalable. | United States | India (49.2%), United States (35.8%), Philippines (7.3%) | 2020 | 201-500 | $117,719,678 | Series B, $65.00M, February 19, 2025 | |
22 | Altered is a disruptive, well-funded, stealth-mode startup that uses Artificial Intelligence to democratise Digital Audio Content Creation. | United Kingdom | United Kingdom (66.7%), United States (33.3%) | 2018 | 11-50 | $920,000 | Series C, $920.00K, April 2, 2022 | |
23 | Synthflow AI is an omnichannel conversational AI platform for enterprise. Our customers deploy voice AI agents that automate phone calls across contact center operations and business process outsourcing (BPO) at scale.
A G2 Grid Leader for AI Agents, Synthflow helps mid-market and enterprise companies manage routine calls to save teams time and resources without increasing headcount. | Germany | Germany (28.3%), United States (26.7%), United Kingdom (8.3%) | 2023 | 51-200 | $28,984,617 | Series A, $20.00M, June 24, 2025 | |
24 | Yobe is the leading team of experts for intelligent control by voice. Our software empowers brands with sophisticated voice interactions that work in the wild.
We believe – when done well – voice can fundamentally change how we live and work. When the stakes are high, getting it right is the ultimate feat of strength.
Purpose-built for live crowds and noisy environments, our software is able to identify and decode human voice through “attentive listening.” For the first time, our technology solves for crosstalk, correctly identifying which user is talking and eliminating disruptions to the interaction. This allows brands to give users control in any situation, from ordering at a kiosk in a noisy restaurant to streamlining workflows in data centers.
Based on teachings of the human auditory system, our technology not only hears better than anything else, it can also extract other biological markers for an added layer of meaning. We also help leading brands capture and retain the commercial value in their voice data.
Yobe was founded in 2016 by Army veteran and serial entrepreneur Ken Sutton and Dr. Hamid Nawab, foremost PhD in signal processing and machine perception. Yobe is proudly based in Boston, Massachusetts.
To learn more and work with us on your next voice experience, please visit: yobeinc.com/.
Yobe. The next era of voice.
| United States | United States (66.7%), Nigeria (22.2%), France (11.1%) | 2014 | 1-10 | $6,024,588 | Venture - Series Unknown, $350.00K, July 5, 2024 | |
25 | Get Salesforce and Amazon Connect right. Now, and forever.
Thunder is a trusted Salesforce and Amazon Connect partner. Get GSI-level talent at a boutique consulting partner.
We are an all-remote team of seasoned Salesforce and Amazon Connect consultants, based from Hawaii to Brooklyn, NY - and everywhere in-between. | United States | United States (64.5%), Philippines (31.9%), Singapore (1.4%) | 2020 | 1-10 | $25,785,210 | Series A, $7.79M, November 27, 2024 | |