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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

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Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

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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
Index VenturesSeries A
Insight PartnersSeries C, Series B
AccelSeries B, Series A, Series C

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.

AssemblyAI Filings

SEC and related filings with document metadata.

Data table
TypedDateAmount OfferedAmount SoldFillingPagesDownload
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AssemblyAI Filings

SEC and related filings with document metadata.

Frequently Asked Questions

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

Firmographic Details

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

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