PolySign is a private fintech company that builds blockchain-enabled infrastructure for institutions to custody, trade, and administer digital assets. It focuses on secure digital-asset infrastructure for capital markets and payments.
Access to pre-IPO shares is available to accredited investors through UpMarket.
PolySign shares are not on public exchanges. UpMarket provides accredited investors access through secondary market transactions.
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Pre-IPO investments are illiquid, speculative, and involve risk of total loss of capital.
| Date | Round | PPS (split-adj.) | Valuation |
|---|---|---|---|
| Unknown |
PolySign closed a $53 million Series C round with investors including Cowen Digital, Brevan Howard, and GSR. The company also secured a $25 million credit facility from Boathouse Capital, adding balance-sheet flexibility for growth.
PolySign says it develops secure, scalable infrastructure for financial institutions to fully leverage digital assets. Its positioning is centered on blockchain-enabled infrastructure for institutional investors, not retail trading.
Private-market listings place PolySign around $502.87 million on one platform and $585.29 million on another. That spread suggests ongoing investor interest in institutional digital-asset infrastructure ahead of a public listing.
Interested in PolySign stock? Fill out the form above or sign up directly. Subject to availability. Accredited investors only.
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No. As of March 2026, PolySign is a private company and does not trade on any public stock exchange. Accredited investors can access PolySign shares through UpMarket, a FINRA-registered broker-dealer that specializes in pre-IPO investments.
PolySign 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 PolySign 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 more than $500M in alternative investments since 2019.
Pre-IPO investments carry significant risks. PolySign 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.
PolySign builds blockchain-enabled infrastructure for institutions to custody, trade, and administer digital assets, generated $8.1M in 2024 revenue, and raised a $53M Series C plus a $25M credit line — accredited investors can access PolySign stock through UpMarket.