# AssemblyAI: Information technology & services, San Francisco, United States

> AssemblyAI: AssemblyAI is a San Francisco-based applied AI company founded in 2017. Based in San Francisco, United States. Founded 2017.

Source: https://millionrounds.com/startup/assemblyai (Millionrounds; every figure on the page links to its filing or article)

United States · [Information technology & services startup](https://millionrounds.com/companies)

# AssemblyAI

AssemblyAI is a San Francisco-based applied AI company founded in 2017.

Funding reported Last round: Series C

Information technology & services San Francisco, United States

Company summary

- **Founded:** 2017 9 years old
- **Team:** 110 51 to 200 people
- **Funding reported:** $158M in dollars
- **Last round:** Series C Dec 2023

How sure we are

- ✓ **Listed** We know it exists and what it does
- 2 **Funding reported** A company dataset reports a raise
- 3 **Observed** A filing or a dated announcement confirms a round

No round for AssemblyAI has been confirmed by a filing or an announcement yet, so nothing here counts toward an investor's record. [How we decide](https://millionrounds.com/methodology)

## About AssemblyAI

AssemblyAI is a San Francisco-based applied AI company founded in 2017.

It specializes in providing Speech-to-Text and Speech Understanding APIs that help developers and enterprises transcribe, analyze, and create voice-enabled applications. The company aims to democratize access to advanced AI models, allowing developers to build voice AI products more efficiently. AssemblyAI offers a unified API platform with three main services: high-accuracy Speech-to-Text for converting audio and video into text, ultra-low latency streaming Speech-to-Text for real-time transcription, and advanced Speech Understanding that extracts insights from audio data. Their technology is utilized across various industries, including media, customer service, healthcare, and technology, serving a global audience of developers and enterprises. AssemblyAI is trusted by over 10,000 companies, including notable clients like Zoom, Delta Airlines, and Spotify, positioning itself as a key infrastructure partner in the Voice AI space.

## What company datasets say AssemblyAI raised

Funding, as reported

Reported in all **$158M** in dollars

Rounds **6**

Last round **Series C**

Last round size **$50M**

Last round date **Dec 2023**

Investors listed **10**

Y Combinator **S17**

## Founders and team

From AssemblyAI's own website: 1 on the team.

- **United States** Senior Design Engineer

## On 2 portfolio pages

Investors who name them

- [Smith Point Capital](https://millionrounds.com/fund/smith-point-capital)
- [AI Grant](https://millionrounds.com/fund/ai-grant)

Each firm lists AssemblyAI on its own website. That is the firm's claim, a weaker thing than a round we watched, but a named source.

## The company, in detail

What they build

Known for

developer-friendly pii redaction health care advanced audio models api enterprise-grade security ml models machine learning models speech recognition multilingual support information technology and services customer engagement benchmarks speech ai industry-specific speech models healthcare

Built with from their website

Airtable Claude Code lemlist Amazon CloudFront Google Hosted Libraries Datadog APM React Vanta Google Font API HSTS

+8 more

Datadog Figma Atlassian LottieFiles ebs TypeScript Microsoft 365 AWS Cloud

- **Sector:** Information technology & services
- **Industry code:** NAICS 54151, 513210, SIC 7375, 7372
- **Region:** California
- **Revenue:** $10M a year, as listed
- **Full record:** [Every detail in the company directory](https://millionrounds.com/directory/assemblyai)

## Information technology & services in United States

Startups like it

- [**Databricks** San Francisco · founded 2013 *Raised*](https://millionrounds.com/company/databricks)
- [**Waymo** Mountain View · founded 2009 *Raised*](https://millionrounds.com/company/waymo)
- [**Crusoe** Denver · founded 2018 *Raised*](https://millionrounds.com/company/crusoe)
- [**Cursor** San Francisco · founded 2017 *Raised*](https://millionrounds.com/company/cursor)
- [**Thinking Machines Lab** San Francisco *Raised*](https://millionrounds.com/company/thinking-machines-lab)
- [**Cognition** San Francisco *Raised*](https://millionrounds.com/company/cognition)
- [**Polymarket** New York · founded 2020 *Raised*](https://millionrounds.com/company/polymarket)
- [**Harvey** San Francisco · founded 2022 *Raised*](https://millionrounds.com/company/harvey)

## Is this your company?

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