Who founded Ultravox?

Ultravox was founded by Zach Koch, Matthew Welsh, Zhongqiang Huang in 2022.

Who are Ultravox's investors?

Ultravox's investors include Madrona Venture Group, Redpoint Ventures, SignalFire, Bloomberg Beta, Zetta Venture Partners.

How much funding has Ultravox raised?

Ultravox has disclosed $16.5M raised across 2 of its 3 known rounds.

Where is Ultravox headquartered?

Ultravox is headquartered in Seattle, US.

Ultravox

Seattle, US · Founded 2022 · 5 known investors

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Ultravox builds a voice AI platform that enables real-time conversational AI through a purpose-built architecture for spoken interaction, serving teams looking to integrate voice capabilities into their applications.

AI & Machine Learning Deep Tech Developer Tools Enterprise Software

Founders & leadership

Ultravox was founded in 2022 by Zach Koch, Matthew Welsh, and Zhongqiang Huang.

Zach Koch FounderHe has a computer science background with focus on human-computer interaction and previously led product teams at Google Chrome, Android, and Shopify.

Matthew WelshCo-founder

Zhongqiang Huang FounderZhongqiang Huang is the founder of Ultravox, which develops voice AI models and platforms for real-time conversational interaction.

Hessam BagherinezhadFounder

Justin UbertiFounder

Matt WelshFounder

Board

Jocelyn Goldfein Board directorInvestor at Zetta Venture Partners

Investors · 5

Madrona Venture Grouplisted by Madrona Venture GroupSeattle · $2M – $10M

How we know: Madrona Venture Group's portfolio page · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us

Redpoint Ventureslisted by Redpoint VenturesWoodside · $100K – $10M

How we know: funding news · press coverage · redpoint.com · open dataset · 5k.vc investor directory · Not right? Tell us

SignalFirelisted by SignalFireSan Francisco · $250K – $15M

How we know: SignalFire's portfolio page · the VCSheet dataset · signalfire.com · open dataset · 5k.vc investor directory · Not right? Tell us

Bloomberg BetareportedSan Francisco · $25K – $1M

How we know: open dataset · 5k.vc investor directory · Not right? Tell us

Zetta Venture PartnersreportedSan Francisco · $1M – $5M

How we know: the VCSheet dataset · Not right? Tell us

Reported raises · per SEC filings

Form D private placements

$16.5M disclosed across 2 of 3 rounds · 2022–2025

▶$11.5MraisedApr 2023 · 7 investors · Other

Rule 506(b)

Officers, directors & promoters on the filing

Matthew WelshExecutive Officer, Director
Zachary KochDirector
Jocelyn GoldfeinDirector

Offering amount: $11.5M
Amount sold: $11.5M
First sale: Mar 2023
Incorporated: Corporation, Delaware, 2022
Federal exemptions: 06b

Full filing on SEC EDGAR ↗

▶$5MraisedJul 2022 · 5 investors · Other

Rule 506(b)

Officers, directors & promoters on the filing

Jocelyn GoldfeinDirector
Zachary KochDirector
Matthew WelshExecutive Officer, Director

Offering amount: $5M
Amount sold: $5M
First sale: Jul 2022
Incorporated: Corporation, Delaware, 2022
Federal exemptions: 06b

Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Related companies · 9

ElevenLabsElevenLabs is an AI research and product company that builds voice generation and audio processing platforms for creating human-like voice interactions with technology. The company serves individuals with accessibility needs, nonprofits, and general users across healthcare, education, and culture.

SpeechifySpeechify is a text-to-speech application that converts written content—including textbooks, PDFs, emails, and web pages—into audio for users to listen to. The platform serves students and professionals with reading difficulties, particularly those with dyslexia and ADHD, enabling them to access educational and professional materials through audio.

Fish AudioFish Audio provides AI voice generation and cloning software that creates studio-quality synthetic voices with emotional control and multi-language support. The platform serves creators, developers, and enterprises with tools for video narration, audiobooks, voice agents, and real-time applications.

Hugging FaceHugging Face is a collaboration platform that hosts and provides access to machine learning models, datasets, and applications. It offers both open-source tools for the ML community and paid compute and enterprise solutions for teams building AI applications.

VoiceflowVoiceflow provides a platform for building AI agents that handle customer interactions, starting with customer support. The company serves businesses looking to deploy conversational AI across customer-facing channels.

WellSaidWellSaid provides a library of 240+ AI voices created from professional voice actors for generating text-to-speech voiceovers. The platform targets enterprise customers, training programs, and marketing teams seeking multilingual, studio-quality audio content.

MiniMaxMiniMax is an AI foundation model company developing multimodal models and AI-native products for text, audio, image, video, and music processing. Its offerings serve individual users, enterprises, and developers globally.

Retell AIRetell AI builds an enterprise-grade voice AI platform that handles phone calls for industries including healthcare, delivery, and insurance. The platform enables businesses to automate customer-facing voice interactions.

VoicemodVoicemod makes real-time voice changer and soundboard software that applies effects to a user's microphone input for use in games and chat apps like Steam and Discord. It targets gamers and streamers, with a community feature (Voicelab) for creating and sharing custom voices and thousands of user-uploaded sounds.

Companies working in the same space as Ultravox.

Frequently asked questions

What does Ultravox do?: Ultravox builds a voice AI platform that enables real-time conversational AI through a purpose-built architecture for spoken interaction, serving teams looking to integrate voice capabilities into their applications.
Who founded Ultravox?: Ultravox was founded by Zach Koch, Matthew Welsh, Zhongqiang Huang in 2022.
Who are Ultravox's investors?: Ultravox's investors include Madrona Venture Group, Redpoint Ventures, SignalFire, Bloomberg Beta, Zetta Venture Partners.
How much funding has Ultravox raised?: Ultravox has disclosed $16.5M raised across 2 of its 3 known rounds.
Where is Ultravox headquartered?: Ultravox is headquartered in Seattle, US.