Best Digital Banks for International Businesses 2026: Banking Platforms Compared (Aspire, Statrys, Mercury, Brex, Relay, Revolut)

Most lists of the best digital banks for international businesses quietly mix three very different products: a true licensed bank, a fintech that sits on top of a partner bank, and a payment institution that looks like a bank but is not one. The label on the homepage tells you almost nothing. What matters is who actually holds the licence, because that single fact decides whether your deposits are insured, passed through to a partner bank, or simply safeguarded.

This guide compares six banking platforms that non-resident founders use most: Revolut Business, Mercury, Brex, Relay, Aspire, and Statrys. We sort them into three regulatory categories, verify each provider's licences and protections against primary sources, and flag where a figure can move. For pure payment wallets, which are a separate category, see the sister guide to the best multi-currency business accounts.

A digital bank for international businesses is an online-first platform that handles business payments, balances, and cards without a branch. The six here split into three categories that protect your money differently. Revolut Business is a true licensed bank. Mercury, Brex, and Relay are fintechs partnered with FDIC-insured banks, so protection is pass-through and conditional. Aspire and Statrys are licensed payment institutions, where funds are safeguarded but not deposit-insured. Revolut suits EU and UK businesses, Mercury, Brex, and Relay suit US-registered companies, and Aspire and Statrys suit Singapore and Hong Kong businesses. Match the category to where your company is registered and how protected you need to be.

The single most useful thing you can do before choosing is work out which of three regulatory categories a provider belongs to, because the marketing rarely says.

The protections behind each category come from primary law. In the US, the FDIC adds together all deposits owned by a corporation at the same bank and insures them up to 250,000 USD. In the UK, the FSCS deposit limit rose to 120,000 GBP on 1 December 2025, up from the 85,000 GBP that applied from January 2017 to November 2025. In Lithuania, where Revolut runs its EEA bank, the deposit insurance scheme compensates eligible deposits up to a limit that cannot be larger than 100,000 euro, and it specifically excludes money received in exchange for electronic money. That last exclusion matters, and we return to it under Revolut. Pure payment wallets are a fourth category that sits outside this guide.

The table summarises all six. The paragraphs that follow, grouped by category, give the pros, cons, and the regulatory detail that defines each one.

Revolut Business (true licensed bank)

Revolut is the only provider here that holds bank licences in its own name. Revolut Bank UK Ltd is authorised by the Prudential Regulation Authority (FRN 981170) and regulated by the FCA, which brings FSCS deposit protection up to 120,000 GBP for eligible UK deposits. In the EEA, Revolut Bank UAB is licensed by the Bank of Lithuania, with deposit insurance up to 100,000 euro. The important caveat: that EEA deposit insurance applies to bank deposits, not to money held as electronic money through a Revolut e-money entity, which is excluded from the Lithuanian scheme. Revolut Business holds 25+ currencies, up to 30 supported, with plans from Basic at 10 GBP a month to Scale at 90 GBP. The pros: a genuine banking licence and broad currency support. The cons: pricing and feature gates by plan, and the protection you get depends on which Revolut entity holds your balance. See how this fits alongside a local relationship via open a business bank account in Singapore.

Mercury (bank-partnered fintech)

Mercury is popular with startups but it is not a bank. Its own disclosure states that Mercury is "a fintech company, not an FDIC-insured bank," with banking services provided through partner banks Choice Financial Group and Column N.A., both Members FDIC. Mercury sweeps balances across a network of partner banks to extend FDIC pass-through coverage up to 5 million USD across 20 banks, with Patriot Bank used for the IO Card only. Its Treasury product, run through Apex Clearing with money managed by Morgan Stanley and JPMorgan asset management, is an investment product and is not FDIC-insured. Crucially for non-US founders, Mercury requires the business to "be formed and registered in the United States or a U.S. territory," so a Hong Kong, Singapore, or UAE entity cannot open one. The pros: clean product, strong startup features, large pass-through coverage. The cons: US entity only, and pass-through is conditional on partner-bank status and recordkeeping. Non-US founders should look at Statrys, Aspire, or Revolut instead.

Brex (bank-partnered fintech, Capital One subsidiary)

Brex changed structurally in 2026. Per its Platform Agreement dated 7 April 2026, Brex LLC is now a wholly owned subsidiary of Capital One, N.A. The unified business account combines Checking, provided by Column N.A. (described in the disclosure as an unaffiliated institution), with Treasury and Vault cash management run through Brex Treasury LLC, a Member FINRA and SIPC and a Capital One company. Brex extends FDIC pass-through up to 6 million USD across 24 banks via its Vault program banks. Its cards are issued through four institutions: Emigrant, Fifth Third, Airwallex NL, and Sutton Bank. Pricing runs from Essentials at 0 USD to Premium at 12 USD per user per month. The pros: deep spend and treasury tooling for funded companies, very large pass-through coverage. The cons: aimed at venture-backed startups rather than small businesses, US entity required, and the structure is layered across several institutions.

Relay (bank-partnered fintech)

Relay targets small businesses that want many accounts and clear cashflow control. Its disclosure states that Relay is "a financial technology company and is not an FDIC-insured bank," with banking services provided by Thread Bank, Member FDIC. The structure runs in three layers: Relay sits on Unit Finance Inc., which sits on Thread Bank, and international transfers are handled through CFSB and Nium. FDIC pass-through reaches up to 3 million USD. Pricing is Starter at 0 USD, Grow at 30 USD a month, and Scale at 90 USD. The pros: generous number of accounts and sub-accounts, simple pricing, good for bookkeeping discipline. The cons: a US entity is required, coverage is lower than Mercury or Brex, and the multi-layer structure means your protection depends on the partner bank at the base.

Aspire (licensed payment institution, temporary exemption)

Aspire is a Singapore banking platform, but it is not a bank and it is not a Major Payment Institution. It operates under a temporary exemption from holding a licence under the Payment Services Act 2019 through Aspire FT Pte Ltd, with its yield product offered through AFT SG 2 Pte Ltd under a capital markets services licence. Funds are safeguarded, not deposit-insured. Aspire supports 30+ currencies across 130+ countries and runs local pages for eight markets: Singapore, the US, Australia, Canada, China, Hong Kong, the Netherlands, and the UK. On accounting, Aspire does not have an in-house bookkeeping product; it connects to third-party tools, with a direct Xero integration and exports to others, QuickBooks support being SGD only. Pricing is Basic at 0 USD and Premium at 15 USD a month. The pros: strong Singapore product, broad currency reach, low entry cost. The cons: a weaker regulatory status than a licensed MPI, and accounting is integrations only. Read the detail in our Aspire review.

Statrys (licensed payment institution, multi-jurisdiction)

Statrys is the most strongly licensed of the payment institutions here, with three separate licences: Statrys SG Pte Ltd holds a MAS Major Payment Institution licence (PS20200692), Statrys Limited in Hong Kong holds a Money Service Operator licence via Customs and Excise (19-02-02726, not the HKMA), and it also holds a Hong Kong Trust or Company Service Provider licence (TC008677). Its Hong Kong and Singapore offerings are symmetric: 11 currencies, payments to 120+ countries, 13 local transfer rails, and FX from 0.1%. Unlike Aspire, Statrys offers a genuine in-house accounting service. Account pricing starts free. For other jurisdictions, eligibility is reviewed case by case during onboarding. The pros: real MPI licensing, an in-house accounting option, and a clear HK and SG focus. The cons: safeguarding rather than deposit insurance, and a narrower currency range than the broadest wallets. Read our Statrys review for more.

The phrase "FDIC insured" gets used loosely. There are four distinct mechanics across these providers, and knowing which one applies tells you what you actually have.

1. Direct deposit insurance (true bank). With Revolut Bank UK Ltd, eligible deposits are protected by the FSCS up to 120,000 GBP, and with Revolut Bank UAB by the Lithuanian scheme up to 100,000 euro. The provider holds the licence, so the protection is direct.
2. FDIC pass-through (bank-partnered fintech). Mercury, Brex, and Relay are not banks. Your money is held at FDIC-insured partner banks, and insurance passes through to you up to 250,000 USD per bank, multiplied across the sweep network (5M USD, 6M USD, and 3M USD respectively). It is conditional: it depends on the partner bank being healthy and on the fintech keeping accurate records of who owns what.
3. Safeguarding (payment institution). Aspire and Statrys must keep client funds in segregated accounts, separate from their own money. That pool exists to be returned if the firm fails, but there is no insurance scheme paying you quickly.
4. No deposit protection (investment products). Yield and treasury products, like Mercury Treasury or a money-market sweep, are investments, not deposits, and are not FDIC-insured at all. Read the product disclosure before parking reserves there.

Five questions resolve most decisions.

1. Where is your company registered? A US LLC or C-Corp opens the door to Mercury, Brex, and Relay. A Hong Kong or Singapore entity points to Statrys, Aspire, or Revolut.
2. How much protection do you need on large balances? A true bank gives direct deposit insurance. A bank-partnered fintech gives conditional pass-through. A payment institution gives safeguarding only.
3. Do you need credit, cards, or treasury? Brex leads on spend and treasury for funded startups; Revolut and Relay cover everyday cards and accounts.
4. Which currencies and corridors matter? Aspire spans 30+ currencies across 130+ countries; Statrys focuses on 11 currencies with strong HK and SG rails; Revolut supports up to 30.
5. Do you want banking and accounting together? Statrys offers in-house accounting; Aspire relies on third-party integrations.

Eligibility is where many international founders hit a wall, so check it before you apply.

• Mercury, Brex, Relay: a US entity is required. Mercury is explicit that you must "be formed and registered in the United States or a U.S. territory," which rules out a standalone Hong Kong Ltd, Singapore Pte Ltd, or UAE company. Brex and Relay likewise require a US entity; verify current criteria with each provider.
• Revolut Business: built for UK and EEA operations, with onboarding tied to where your company and directors are based.
• Aspire: runs local onboarding for eight markets, namely Singapore, the US, Australia, Canada, China, Hong Kong, the Netherlands, and the UK.
• Statrys: Hong Kong and Singapore are its core symmetric markets; other jurisdictions are reviewed case by case during onboarding.

If you are a non-US founder without a US entity, the practical path is Statrys, Aspire, or Revolut, paired where useful with a local account. See open a business bank account in Hong Kong.

Licensing differs by hub, and it decides who can open an account and how funds are regulated.

Singapore

Singapore is well served. Statrys holds a MAS Major Payment Institution licence in its Singapore entity, which carries no monthly transaction cap. Aspire operates under a temporary Payment Services Act exemption rather than an MPI licence, a weaker status worth knowing. Revolut also operates in Singapore. For a local bank relationship alongside any of these, see open a business bank account in Singapore.

Hong Kong

In Hong Kong, the regulator detail matters. Money Service Operators are licensed by Customs and Excise, not the HKMA. Statrys Limited holds an MSO licence via Customs and Excise (19-02-02726) plus a Trust or Company Service Provider licence, and Aspire runs a Hong Kong local page. Both safeguard funds rather than offering deposit insurance.

United Arab Emirates

None of these six providers lists a Central Bank of the UAE licence on its published materials as of June 2026, so UAE companies typically use them for cross-border flows and pair them with a local AED account. See open a UAE business bank account for the local side.

A banking platform and a payment wallet overlap but are not the same. Choose a banking platform when you need credit, deeper treasury tooling, or the stronger protection of a true bank or an FDIC pass-through structure. Choose a wallet when your priority is cheap, transparent currency conversion and receiving like a local across many currencies, and you are comfortable with safeguarding rather than insurance. Many businesses run both: a banking platform for the core account and cards, and a wallet for low-cost conversion. To compare the wallet side in full, see the best multi-currency business accounts guide.

Whichever platform you pick, the mechanics of moving money internationally are the same underneath. For sending large or one-off cross-border payments, our international wire transfer step-by-step guide covers SWIFT and timing. For collecting from US customers cheaply, see international ACH for non-US businesses. And if a US payer asks your non-US entity for tax paperwork before paying, the W-8BEN-E guide for non-US businesses explains the form and the default 30% withholding it can avoid. For the whole picture, start with the international business payments guide.

What happens to your money on failure depends entirely on the category. If a true bank like Revolut Bank UK Ltd failed, eligible deposits would be covered by the FSCS up to 120,000 GBP, paid out by the scheme. If a bank-partnered fintech like Mercury, Brex, or Relay failed, your money sits at the FDIC-insured partner bank, and pass-through insurance would apply up to the per-bank limit, provided records are accurate and the partner bank is sound; the fintech failing is not the same as the bank failing. If a payment institution like Aspire or Statrys failed, safeguarded client funds in segregated accounts would be returned through an administration process, but without the speed of an insurance payout. The practical rule across all three: keep working balances on the platform and sweep large reserves to a fully licensed, insured bank.

The best digital bank for your international business is the one whose category matches where you are registered and how protected you need to be: a true bank for direct insurance, a bank-partnered fintech for US operations, or a licensed payment institution for Hong Kong and Singapore. Start with the international business payments guide for the full landscape, and use the international wire transfer step-by-step guide when a bank wire is unavoidable.

Sources cited (primary, accessed 2026-06-14)

• FDIC deposit insurance for business accounts (250,000 USD, deposits added together): https://www.fdic.gov/resources/deposit-insurance/financial-products-insured/
• FSCS deposit limit increase to 120,000 GBP from 1 December 2025 (previously 85,000 GBP): https://www.fscs.org.uk/what-we-cover/banks-building-societies-credit-unions/deposit-limit-increase/
• Lithuania deposit insurance (up to 100,000 euro, e-money exclusion): https://www.iidraudimas.lt/en/deposit-insurance-0/deposit-insurance/
• Revolut Business terms and plans: https://www.revolut.com/business/business-account-plans/
• Revolut Business multi-currency account: https://www.revolut.com/business/multi-currency-account/
• Mercury business banking: https://mercury.com/business-banking
• Mercury eligibility and requirements: https://support.mercury.com/hc/en-us/articles/28770467511060-Eligibility-and-requirements-for-opening-a-Mercury-account
• Brex business account: https://www.brex.com/product/business-account
• Brex Platform Agreement (Capital One subsidiary, 7 April 2026): https://www.brex.com/legal/platform-agreement
• Brex disclosures (FDIC pass-through 6M USD across 24 banks): https://www.brex.com/disclosures
• Relay pricing: https://relayfi.com/pricing
• Relay legal and disclosures: https://relayfi.com/legal
• Aspire pricing: https://aspireapp.com/pricing
• Aspire business account: https://aspireapp.com/business-account
• Aspire integrations: https://aspireapp.com/integrations
• Statrys about and licences: https://statrys.com/about
• Statrys pricing: https://statrys.com/pricing
• MAS payment services licensing (MPI): https://www.mas.gov.sg/regulation/payments/licensing-for-payment-service-providers
• HK Customs and Excise Money Service Operators (Cap. 615 AMLO): https://www.customs.gov.hk/en/service-enforcement-information/anti-money-laundering/msos/index.html

Status of figures

• Verified primary source: Revolut Bank UK Ltd PRA authorisation (FRN 981170) and FSCS 120,000 GBP coverage; Revolut Bank UAB Bank of Lithuania licence and 100,000 euro scheme with e-money exclusion; Revolut "25+ currencies, up to 30 supported." Mercury bank partners (Choice Financial, Column N.A., Evolve), sweep 5M USD across 20 banks, Patriot Bank for IO Card only, US-entity eligibility verbatim, Treasury not FDIC-insured. Relay via Thread Bank through Unit Finance, international via CFSB and Nium, sweep 3M USD. Aspire temporary PS Act exemption (not MPI), yield via AFT SG 2 Pte Ltd (CMSL), "30+ currencies across 130+ countries," eight locale markets, no in-house accounting (integrations only, QuickBooks SGD only). Statrys three licences (MAS MPI PS20200692, HK MSO 19-02-02726 via Customs and Excise not HKMA, HK TCSP TC008677), 11 currencies, 120+ countries, FX from 0.1%, in-house accounting.
• Source provenance to note: Brex as a wholly owned subsidiary of Capital One, N.A., and the Checking, Treasury, and Vault structure (sweep 6M USD across 24 banks; cards via Emigrant, Fifth Third, Airwallex NL, Sutton Bank) are taken from the Brex Platform Agreement dated 7 April 2026. This is a 2026 corporate change sourced to Brex's own legal page; re-confirm at build that the agreement and figures are still current.
• Softener applied (flag): Mercury Treasury yield is described as market-dependent and not FDIC-insured rather than pinned to a single rate, since money-market yields move. Pricing tiers for all providers carry the standing instruction to verify on each provider's official pricing page, as plans and fees change. Brex and Relay US-entity eligibility stated with a verify-with-provider softener where the exact wording was not reproduced verbatim.
• Anti-cannibalisation: Wise, Payoneer, Airwallex, and Currenxie are not compared here; they belong to the sister wallet hub, linked twice via its canonical anchor. The phrase "multi-currency" appears only contextually, never as a target.

About this guide

This guide is for educational purposes. Pricing, regulator licences and FDIC pass-through arrangements change; verify current terms with each provider and the relevant regulator before signing up. Bank-partnered fintechs (Mercury, Brex, Relay) rely on FDIC-insured partner banks for deposit protection; the pass-through is conditional on the partner bank's status and on the fintech's recordkeeping practices. GrowAcross is an editorial comparison platform, not a licensed bank, payment institution, or financial adviser.