Skip to main content
Caplight Logo









AssemblyAI

AssemblyAI

Private
San Francisco, CaliforniaAI, Data & Cloud Infrastructurehttps://www.assemblyai.com/

Last Round

Series C

Dec 4, 2023

Est. Valuation

$300M

Total Funding Raised

$109.32M

Momentum

Top 25%

of companies Caplight tracks

Company Overview

AssemblyAI is an artificial intelligence company that provides a developer-focused API for speech-to-text and audio intelligence models.

Sector

AI, Data & Cloud Infrastructure

Verticals

NLP & Conversational AI, API Management, Customer Experience, Medical AI

Business Model

B2B

Customer Profile

Usage-Based SaaS, Freemium

AI Layer

Infrastructure

Keywords

speech-to-textaudio intelligencevoice AIconversational AIAI infrastructurespeech recognitionvoice agent APIclinical transcriptionmedical AIusage-based APIsentiment analysisLLM gatewaySTTAI developer toolsvoice tech

Historical Pricing

Historical view of private secondary pricing and transaction trends.

Unlock Pricing Charts

Sign up to view complete historical pricing and secondary transactions.

Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

View Momentum History

Track how buyer interest and sentiment changes over time.

AssemblyAI Comparables

Compare AssemblyAI with similar companies based on industry and business-model similarity.

AssemblyAI comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Deepgram
90%
Gladia
83%
Soniox
78%

AssemblyAI Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series CDec 4, 2023
Series BJul 14, 2022
Series AMar 4, 2022
SeedSep 1, 2017
AcceleratorAug 1, 2017

Key People

Founding team and executive leadership

Dylan Fox

Founder & CEO

Founding Team

AssemblyAI Investors

Notable investors and investment history

AssemblyAI investors
InvestorRounds
Root VenturesSeries A
Craft VenturesSeries A
Smith Point CapitalSeries C
Y CombinatorSeries B, Series A, Series C, Seed, Accelerator
8VCSeries A
Index VenturesSeries A
Insight PartnersSeries C, Series B

Market signals

Structured signals derived from secondary market and firmographic data.

  • Jun 1, 2026

    Added Happy Scribe Ltd, a transcription services startup, as a customer.

  • Jun 1, 2026

    Added Siro Technologies Inc., a startup in the Technology/SaaS sector.

Recent news

Latest coverage and updates

  • attends_eventSep 17, 2026

    AssemblyAI, Inc. attended event Build Smarter Voice Agents event on Sep 17th '26.

AssemblyAI Filings

Explore SEC and related filing metadata, where available.

AssemblyAI filings preview — column headings only; records require access
TypeDateAmount OfferedAmount SoldFilingPagesDownload

Filing documents are not displayed on this public page. Request access to learn about available coverage.

Request access

Frequently Asked Questions

Common questions about AssemblyAI's valuation, stock price, and market status.

Is AssemblyAI a public or private company?

AssemblyAI is a private company.

What is the current stock price of AssemblyAI?

AssemblyAI is a private company with no public stock price. No recent secondary market data is available.

How much is AssemblyAI worth (valuation)?

AssemblyAI's valuation is estimated at $290.0M based on funding round data.

Can I buy AssemblyAI stock?

AssemblyAI shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.

When was AssemblyAI's last funding round?

AssemblyAI's most recent funding round was Series C on December 4, 2023.

Who are the main investors in AssemblyAI?

Key investors in AssemblyAI include Y Combinator, Insight Partners, Accel.

Will AssemblyAI IPO soon?

No public IPO plans have been announced for AssemblyAI.

How can I track AssemblyAI secondary market activity?

Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor AssemblyAI's secondary market activity and sign up for updates.

Firmographic Details

HeadquartersSan Francisco, California
Employee Range78
Year Founded2017
Last FundingDec 4, 2023

Institutional Data Access

Join leading institutional investors using Caplight to access private market data, discover pricing, and execute secondary block trades.

Requires verified institutional or accredited status.

See something wrong or outdated?