Open USD launched with more than 140 signatories already on the announcement page. That is not a soft launch. It is the largest day-one partner roster any stablecoin has ever shipped with, and the list reads like a cross-section of the global payments stack: card networks, custodian banks, exchanges, wallets, ecommerce platforms, and chains.
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This article catalogs who joined, sorted into the categories that actually matter for routing and integration decisions. If you are evaluating Open USD, the partner mix tells you more about where it will be accepted than any whitepaper claim about reserves or governance.
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The 140+ signatories on the Open Standard announcement break into six broad buckets. The shape of the list, more than the headcount, is the story: payments and banking dominate, crypto-native infrastructure is heavily represented, and several of the world's largest consumer tech platforms signed on at launch.

Counts are approximate because some companies sit in more than one bucket. Stripe, for example, is both a payment processor and (via Bridge) a stablecoin infrastructure provider. The categories below resolve those overlaps based on each company's primary role in the consortium.
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Signatories agreed to support Open USD as shared infrastructure, not to own it. Open Standard, the independent company operating Open USD, is governed by a board drawn from the partner roster. Partners receive the earnings on Open USD's reserves, less a small management fee, and can mint and redeem at no cost. In practice, joining signals three things: technical readiness to support a new stablecoin, willingness to share reserve economics rather than capture them, and a bet that a neutral standard beats issuer-controlled coins for institutional volume.
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The payments bucket is the deepest. Every major global card network signed on, alongside the processors that route most of the world's online transactions. This category is what gives Open USD a credible acceptance story at launch.

Why they joined: a neutral stablecoin lets payment networks settle in dollars without ceding distribution or float economics to a single issuer.
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The bank list is geographically diverse in a way most stablecoin partnerships have not been. U.S. money-center banks, Korean and Japanese mega-banks, Latin American incumbents, Gulf banks, South African banks, Australasian banks, and digital-only neobanks all signed on.

Why they joined: banks gain a dollar-denominated settlement asset they can custody, distribute, and earn on without picking a side between Circle, Tether, or PayPal.
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This is the shortest bucket but possibly the most consequential. The tech signatories own the demand surface: consumer wallets, merchant checkout, ad networks, and the largest ecommerce platforms in their respective regions.

Why they joined: platforms that handle large merchant volume want a stablecoin they can accept without renegotiating economics with a single issuer every renewal cycle.
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The crypto bucket spans centralized exchanges, custodians, prime brokers, and DeFi protocols. Several of these companies issue or back competing stablecoins. They joined anyway, which is the clearest signal that the consortium is positioned as additive rather than replacement.

Why they joined: exchanges and DeFi venues add Open USD as another routable dollar asset. Listing it does not require dropping USDC, USDT, or PYUSD; the partner economics make supporting it attractive on its own terms.
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This bucket is the operational backbone: the companies that actually move stablecoins through banking rails, embed them in apps, and convert them to local currency at the edges of the network.

Why they joined: infrastructure providers earn revenue per dollar moved. A new high-volume stablecoin expands the addressable surface without cannibalizing existing USDC or USDT flow.
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Open USD will run onchain. The chains that signed on at launch span the venues where stablecoin volume actually settles today.

Why they joined: chains compete for stablecoin TVL and transfer volume. Hosting a 140-partner stablecoin from day one is a fast path to both.
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Two absences are worth naming. Circle, the issuer of USDC, is not on the list, Open USD is structured as a peer to USDC, not a Circle product. Tether is also absent, which is consistent with Tether's posture of operating independently of consortium structures. PayPal Corporation is a signatory, but PYUSD itself remains a separately issued asset. The implication: Open USD adds a fourth major dollar token to a market that already has USDC, USDT, and PYUSD. It does not replace them.
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The selected quotes from the announcement cluster around the same theme: shared infrastructure over issuer capture. Visa framed it as "reliability, governance, and interoperability." Mastercard pointed to "shared infrastructure that anyone could build on." BNY tied it to "neutral governance and shared economics." DoorDash emphasized that "no single company controls it." Stripe framed the need as a stablecoin built for "global, industrial scale… not at the scale of the 2026 economy, but of the 2040 economy." These statements are coordinated but not identical, which is typical of consortium launches where each partner emphasizes the angle that matters for their own customers.
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For a business deciding how to hold and move dollars, a 140-partner stablecoin does not simplify the decision. It expands it. USDC, USDT, PYUSD, USDG, RLUSD, and now Open USD all clear at par against the same underlying dollar, but they clear on different rails, in different jurisdictions, with different acceptance footprints. The job of a stablecoin orchestration layer is to route across those rails based on counterparty support, fees, and settlement finality, without forcing the user to pick a winner. Open USD makes that job more important, not less.
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One way to read the partner list is geographically. Most stablecoin launches lean heavily U.S. and EU. Open USD's roster includes anchor banks or processors in nearly every major payments region, which matters for any business that holds dollars across borders.

That geographic spread is the practical difference between Open USD and most prior stablecoin launches. A treasurer in São Paulo, Singapore, or Dubai can route through a local partner instead of going through a U.S. correspondent bank.
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Open USD is not the first multi-partner stablecoin. The Global Dollar Network (USDG), led by Paxos, includes Robinhood, Kraken, Galaxy, and Mastercard, among others. That consortium is closer to a dozen named partners. Open USD's 140+ is roughly an order of magnitude larger at launch, and notably includes a deeper bank roster. The two networks are not mutually exclusive, Mastercard, for example, is on both, which suggests partners are treating consortium membership as portfolio diversification rather than exclusive alignment.
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The 140+ partner roster is the launch story. Open USD's mechanics, zero-cost mint and redeem, shared reserve earnings, board governance by partners, only work if a critical mass of payments, banking, and crypto venues adopt it. That mass arrived on day one. Whether the asset itself gains volume is a separate question that will play out over the next 12 to 24 months as integrations ship. For now, the signal to take from the partner list is that the largest companies in payments, banking, and crypto-native infrastructure have decided that a neutral standard is worth a board seat on.
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For background on what Open USD actually is and how it is governed, see What Is Open USD? Open Standard's Stablecoin Explained and Open Standard Governance: How the Partner Board Works.
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Source: joinopenstandard.com/blog/introducing-open-usd
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