Flower Labs is the AI startup behind Flower, an open-source framework for federated learning on distributed data. It helps organizations train models while keeping sensitive data on devices or across silos.
Access to pre-IPO shares is available to accredited investors through UpMarket.
Latest Price
$100M
Seed, Feb 2024, Perplexity
UpMarket Estimate
$109M
Based on UpMarket valuation model
How to Invest in Flower Labs Through UpMarket
Flower Labs 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 Flower Labs 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
Feb 2024
Seed
$100M
Why Investors Are Watching Flower Labs
Growth Signal
Flower Labs raised $20M Series A to scale federated AI
Flower Labs announced a $20 million Series A in February 2024 to accelerate mainstream adoption of federated and decentralized AI. The round was led by Felicis and included Y Combinator, Mozilla Ventures, and angels including Hugging Face CEO Clem Delangue.
Competitive Moat
Open-source Flower lets AI train on private data securely
Flower is described as the leading open-source framework for training AI on distributed data using federated learning and privacy-enhancing technologies. Its approach avoids pooling data in one central server, a design Fortune says can improve privacy and security for regulated sectors.
Market Opportunity
Federated learning demand grows in healthcare and finance
Fortune says federated learning is drawing growing interest from healthcare, financial services, and defense because it supports AI training without centralizing sensitive data. Flower Labs was valued at $100 million in the February 2024 funding round, signaling investor belief in the market opportunity.
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No. As of March 2026, Flower Labs is a private company and does not trade on any public stock exchange. Accredited investors can access Flower Labs shares through UpMarket, a FINRA-registered broker-dealer that specializes in pre-IPO investments.
Flower Labs 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 Flower Labs 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. Flower Labs 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 $109M 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.
Flower Labs builds Flower, an open-source federated learning framework for training AI on distributed data, and is valued at $109M after raising a $20M Series A to scale federated AI. Accredited investors can access Flower Labs stock through UpMarket.