Nium is a San Francisco-based B2B cross-border payments platform, originally founded in 2014 as InstaReM, delivering to more than 190 countries with real-time settlement in 100-plus markets. Its coverage is unusually wide, but per Merge's 2026 comparison, Nium does not offer native stablecoin support, which is now the primary axis on which cross-border infrastructure gets picked.
​

This article covers where Nium fits, and how five competitors compare when the buying decision is "same payout coverage, but with stablecoin rails at the top of the stack": Eco, BVNK, Airwallex, Thunes, and Bridge.
​

Nium's differentiator is breadth: 190-plus payout destinations, real-time in 100-plus corridors, API access to mass payouts, card issuing, and account validation, per Nium's own product page. Its limitation is that all of that runs on fiat rails. If your funding source is USDC or USDT and you want to preserve the stablecoin economics through settlement, Nium is a fiat off-ramp, not a stablecoin-native network.
​

Eco is a stablecoin orchestration layer that accepts any major stablecoin on any major chain and delivers the destination stablecoin with a guaranteed quote before signing. Where Nium optimizes for the last-mile fiat network, Eco optimizes for the first-mile stablecoin funding. Both problems are real; teams that need both often pair a stablecoin orchestrator with a fiat payout partner.
​

Best fit: platforms whose customers fund flows in stablecoins and whose destination is another stablecoin, another chain, or a fiat payout partner one hop away.
​

BVNK covers 130-plus markets with wallets, custody, virtual accounts, and payment orchestration, and reports 99.9% uptime. B2B payments were 44% of BVNK's stablecoin payment volume in 2025, per its stablecoin wallets guide. Mastercard agreed to acquire BVNK in March 2026 for up to $1.8 billion.
​

Airwallex covers 150-plus countries with about 50 direct local-rail connections, licensed across multiple jurisdictions with strong APAC coverage. It is the closest peer to Nium on fiat breadth and the classic pick when the flow is card-in and local-fiat-out, without a stablecoin requirement.
​

Thunes runs a payout and collection network reaching more than 130 countries and 3 billion wallets and accounts, focused on emerging-market corridors. It competes with Nium head-on on network reach in Africa, LATAM, and Southeast Asia, and is often selected when the buyer prioritizes wallet destinations over bank accounts.
​

Bridge (acquired by Stripe in 2024) runs a payouts API for dollar-denominated B2B disbursements plus the Bridge USD stablecoin, sitting inside Stripe's compliance and treasury layer. It is the natural pick for teams already inside Stripe who want stablecoin payouts without a second vendor.
​

Match the provider to the funding source. Fiat-in, fiat-out to many countries: Nium, Airwallex, or Thunes are the shortlist. Stablecoin-in, fiat-out: BVNK or Bridge are the natural pair. Stablecoin-in, stablecoin-out across chains: Eco is designed for that shape. Regulated named-account requirement: BVNK or a Merge-style regulated wrapper. Most real B2B platforms end up with two vendors, one for stablecoin orchestration at the top of the flow and one for fiat payout at the bottom, because no single provider is best at both.
​