AssemblyAI is a private Voice AI company that builds APIs to transcribe and understand speech and audio data. Its models support use cases like speech-to-text, speaker detection, sentiment analysis, and PII redaction. It serves developers and enterprise customers with production-ready AI infrastructure.
Access to pre-IPO shares is available to accredited investors through UpMarket.
Latest Price
Previous Price
Series B Jul 2020
How to Invest in AssemblyAI Through UpMarket
AssemblyAI shares are not on public exchanges. UpMarket provides accredited investors access through secondary market transactions.
Step 01
Verify accredited investor status
Confirm eligibility under SEC Rule 501 of Regulation D. Income or net worth threshold applies.
Step 02
Create an UpMarket account
Complete KYC/AML onboarding. Typically 1–2 business days. Licensed rep assigned on signup.
Step 03
Review available AssemblyAI offerings
Full offering memoranda and risk disclosures provided before any commitment is required.
Step 04
Complete subscription documents
Review and sign subscription agreement. All documents handled digitally through the platform.
Step 05
Fund your investment
Wire transfer or ACH. $50K minimum. Funds held in custodial account until close.
Pre-IPO investments are illiquid, speculative, and involve risk of total loss of capital.
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Valuation Growth Over Time
Post-money valuation by round
Previous roundsMost recent
Date
Round
PPS (split-adj.)
Valuation
Jun 2021
Series C
Jul 2020
Series B
May 2019
Series A
Why Investors Are Watching AssemblyAI
Growth Signal
AssemblyAI raised a $30M Series B led by Insight Partners
AssemblyAI raised a $30 million Series B in July 2022, with Insight Partners leading and Accel and Y Combinator also participating. The company sells speech-AI APIs for transcription plus NLP features like topic detection.
Product Milestone
AssemblyAI’s APIs transcribe audio and add NLP insights
AssemblyAI builds APIs to transcribe and understand audio data, turning audio and video into text and actionable insights. Its product includes features such as word-level timestamps and profanity filtering.
Market Opportunity
Voice AI funding surged from $315M in 2022 to $2.1B in 2024
AssemblyAI said Voice AI VC investment rose from roughly $315 million in 2022 to $2.1 billion in 2024, nearly 7x in two years. That expansion points to a much larger spend pool for speech and voice infrastructure vendors.
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No. As of March 2026, AssemblyAI is a private company and does not trade on any public stock exchange. Accredited investors can access AssemblyAI shares through UpMarket, a FINRA-registered broker-dealer that specializes in pre-IPO investments.
AssemblyAI does not have a public stock price because it is privately held. The most recent known share price comes from its last funding round. Pre-IPO share prices on the secondary market may differ from the last round price depending on supply, demand, and market conditions.
Yes. Accredited investors can indicate interest in AssemblyAI shares through UpMarket by filling out the form on this page or creating an account at upmarket.co. All pre-IPO offerings are subject to availability and require a $50,000 minimum investment. UpMarket is a FINRA-registered broker-dealer and has brokered alternative investments since 2019.
Pre-IPO investments carry significant risks. AssemblyAI shares are illiquid, meaning there is no public market to sell them quickly. There is no guaranteed exit timeline or return. The investment is speculative in nature, and investors should be prepared for the possibility of total loss. Valuations of private companies can fluctuate substantially between funding rounds. Investors should consult their financial advisor and review all offering documents before investing.
In a pre-IPO transaction, accredited investors purchase shares from existing shareholders (such as employees, early investors, or other holders) through secondary market platforms. The company itself does not issue new shares in these transactions. UpMarket facilitates these trades as a FINRA-registered broker-dealer, handling compliance, documentation, and settlement on behalf of both parties.
There are two primary exit paths for pre-IPO holdings: selling your shares on the secondary market to another buyer, or holding until the company completes an IPO or is acquired. Both paths are subject to transfer restrictions, company approval (right of first refusal), and market conditions. The timing of any exit is unpredictable, and investors should plan for a multi-year holding period.
The minimum investment for most pre-IPO offerings on UpMarket is $50,000. This amount may vary depending on the specific offering and share availability. There are no fees to create an UpMarket account or browse available investments. Investors only pay transaction-related fees when they complete an investment.
UpMarket's valuation estimate of is derived from a proprietary model that incorporates multiple data sources: funding round data (Caplight), revenue estimates (Sacra), secondary market pricing, and public company comparables. The model applies a private company discount to the public comp multiple to account for illiquidity and information asymmetry. This estimate is not investment advice and may differ substantially from the price at which shares actually trade.
AssemblyAI builds APIs for speech-to-text and audio understanding, with hundreds of paying customers and a $30M Series B led by Insight Partners — accredited investors can access AssemblyAI stock through UpMarket.