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Cobo

Custody and wallet-as-a-service platform

Cobo provides full-suite stablecoin payment operations combining MPC custody, payment APIs and Wallet-as-a-Service across 80+ chains. It launched a stablecoin payment solution for cross-border business and integrated Plasma early, positioning as a qualified custodian and orchestration layer for stablecoin treasury and payments.

Coinbase

Largest US crypto exchange and USDC co-issuer

Coinbase is the largest US-listed crypto exchange and a primary stablecoin trading venue. It co-founded USDC with Circle via the Centre consortium and earns a share of USDC reserve revenue, while operating Base (its L2), Coinbase Wallet, custody and on/off-ramp services. In 2026 it is positioning around stablecoins, Base, and an 'everything exchange' strategy.

Crossmint

All-in-one stablecoin & wallet infrastructure (50+ chains)

Crossmint is an all-in-one stablecoin and wallet infrastructure platform supporting 50+ blockchains. It provides embedded wallets, stablecoin issuance/minting, and enterprise payout orchestration with broad multi-chain coverage, positioning itself as a Bridge alternative for businesses building stablecoin products.

Eco

Stablecoin orchestration layer (routing, not a rail)

Eco positions itself as a stablecoin orchestration layer — 'an orchestrator, not a rail' — that routes payments across stablecoin standards (USDC, USDT, USDG, PYUSD) and underlying chains/rails. Its routes and intents abstract liquidity and bridging so apps can move dollars across tokens and networks with a single integration.

Fireblocks

MPC-based digital asset custody and transfer platform

Fireblocks is the most widely deployed institutional wallet and custody infrastructure provider, using MPC-CMP key management and a hardware-isolated transaction security layer. Its Fireblocks Network connects 2,000+ exchanges, banks, market makers and treasuries for direct settlement, and it is a leading rail for institutional stablecoin movement. Regulated custody workflows route through partner trusts and NYDFS-licensed subsidiaries.

Locus

Payment infrastructure for AI agents settling in USDC

Locus is a Y Combinator-backed (F25) company building non-custodial wallet and payment infrastructure for AI agents, with funds held in agent-controlled smart wallets on Base and settled in USDC. It provides policy enforcement, spending limits, per-transaction budgets, approval thresholds and vendor allowlists, and lets agents pay-per-use across 30+ APIs from a single wallet. Its Locus Founder product is an AI agent that builds and runs an internet business.