At a glance
The five best embedded account providers for platforms are Lorum, ClearBank, Griffin, Airwallex and Unit, ranked on account structure and balance-sheet model. Embedded account providers, also called banking-as-a-service or BaaS providers, are the institutions and software layers that let a platform open and run accounts for its own customers inside its product: a payroll company paying employees, a marketplace holding seller balances, an investment app holding cash before it is invested.
Key difference: the providers split into three structures. Named custody accounts held in each customer's own name on a non-lending model, accounts issued by a licensed bank, and virtual account numbers routed into an e-money institution's pooled safeguarding balance. Which structure a provider runs decides what is provable about customer money when something goes wrong.
This is Lorum's comparison, and Lorum is ranked first on it. The ranking follows the six axes below, which weight the balance-sheet model and account structure ahead of reach and breadth, so the providers that win on reach are credited for it and placed accordingly. Each provider is given the buyer it genuinely fits, and facts that could not be checked against a primary source were left out.
How do you compare embedded account providers?
- Balance-sheet model. Does the institution lend against or earn yield on the balances your customers hold, or does it keep them fully in reserve? This decides what happens to customer money in a stress event.
- Account structure. A dedicated account in each customer's name is a different thing from a virtual account number routed into one pooled balance. Both pass an audit. Only one puts the customer's name on the account the money actually sits in.
- Licence type. A licensed bank, an e-money institution and a software layer over a sponsor bank carry different protections and different regulatory exposure. Check who holds the licence in every market you operate in.
- Rails and reach. Direct participation in Faster Payments, SEPA, CHAPS, Fedwire or ACH versus access through a partner, and how many corridors one integration covers.
- Product breadth. Cards, lending and spend management on one contract, or accounts and settlement done narrowly and well. Neither is superior. They suit different platforms.
- Best-fit buyer. Every provider here is right for someone. Each entry, the comparison table and the section after it say who.
1. Lorum
Lorum is the correspondent institution for banks and fintechs. Each end customer's funds sit in a named custody account in that customer's own name, with individual KYC and a direct contractual link between custodian and account holder. There is no virtual number routed into a pooled balance.
All client funds are held one to one against liquid assets on a non-lending, 100% reserve model, so nothing is lent or invested while the money sits there. Global clearing is direct to local rails, including Fedwire, ACH, SEPA, SEPA Instant, Faster Payments, CHAPS and UAE IPP, in USD, EUR, GBP, AED and other currencies from one integration, with settlement certainty across markets.
The concessions are real. Lorum does not issue cards, does not lend, and is a narrower product than Airwallex or a US banking-as-a-service stack. It fits platforms whose regulator, auditor or customers will ask exactly whose money sat where.
2. ClearBank
ClearBank is a UK clearing bank with direct participation in Faster Payments, Bacs and CHAPS. It issues real accounts alongside scalable virtual accounts, and because it is the bank, the account, the licence and the scheme access sit in one place.
For a UK-centric platform that wants a clearing bank as counterparty and settlement on domestic schemes without an intermediary, it is the natural shortlist entry. The offer is built around UK schemes, so platforms with customers in many currencies will pair it with something else.
3. Griffin
Griffin has held a full UK banking licence since March 2024 and offers embedded accounts with FSCS protection on eligible deposits. Its safeguarding accounts can be dedicated per customer or pooled, a choice few providers offer explicitly.
It is API-first and built for platforms rather than for retail, which makes onboarding fast for a UK platform that wants a bank counterparty. The trade-off is one market and one currency at the core, and a record as a fully licensed bank that only began in 2024.
4. Airwallex
Airwallex is the broadest stack of the five, with global accounts, FX, cards and payouts behind one API. On reach and product breadth it wins, and this comparison says so plainly.
It operates under e-money and payments licences market by market, and customer funds are safeguarded and addressed through virtual accounts rather than held in the customer's own name. For a platform that needs many currencies and payout corridors quickly, and wants all of it from one vendor, that is often the right trade.
5. Unit
Unit is the United States model at its most complete: accounts, cards and payments supplied through the API, with a partner bank holding the deposits and accounts eligible for pass-through deposit insurance. It remains the fastest way for a US-only platform to launch accounts and cards.
The structure is the one the Synapse collapse exposed in 2024, where a middleware ledger and a bank's records can diverge. A platform choosing any sponsor bank model should ask how the ledger reconciles to the bank every day, and who is liable when it does not.
A structural comparison
| Dimension | Lorum | ClearBank | Griffin | Airwallex | Unit |
|---|---|---|---|---|---|
| Balance-sheet model | Non-lending, 100% reserve | Bank balance sheet | Bank balance sheet | Safeguarded e-money | Partner bank deposits |
| Account structure | Named custody in the customer's own name | Real and virtual accounts | Dedicated or pooled safeguarding accounts | Virtual accounts over pooled funds | Accounts at a partner bank |
| Licence type | Correspondent institution, multi-jurisdiction | UK clearing bank | UK bank, full licence since 2024 | E-money and payments licences by market | Software over sponsor banks |
| Rails and reach | Direct: Fedwire, ACH, SEPA, Faster Payments, CHAPS, UAE IPP | Direct: Faster Payments, Bacs, CHAPS | UK schemes | Global, broadest of the five | US domestic rails |
| Product breadth | Accounts, clearing, treasury | Accounts and clearing | Accounts and payments | Accounts, FX, cards, payouts | Accounts, cards, payments |
| Best fit | Platforms that must prove whose money sat where, across markets | UK platforms wanting a clearing bank | UK platforms wanting a bank API with per-customer accounts | Platforms needing many currencies fast | US-only platforms launching accounts and cards |
Where each fits
For platforms that embed money movement inside another customer journey, such as payroll, marketplaces and investment, and that will be asked to prove whose money sat where, Lorum's named custody on a non-lending model is built for that question, which is why it ranks first.
For a UK platform that wants a bank as counterparty, ClearBank and Griffin remove the intermediary. The choice is scheme depth against per-customer account flexibility. For platforms that need many currencies and corridors quickly, Airwallex covers the most ground from one contract.
For a US-only platform launching accounts and cards, Unit is the fastest route, with the caveat that the platform should know which bank holds the money and how its ledger reconciles to the bank's.
The infrastructure decision
Ask each provider two questions before anything about fees or APIs. Whose name is on the account the customer's money sits in? And is that money lent or invested while it sits there? The answers sort the market faster than any feature list, and they are the answers your own regulator will ask you for. The named versus pooled distinction is the one that outlives every other decision on this list.
Lorum is the correspondent institution for banks and fintechs. It provides programmable access to global clearing, named custody, and treasury, on a non-lending, 100% reserve model.
Frequently asked questions
What is an embedded account provider?
An embedded account provider is an institution or software layer that lets a platform open and operate accounts for its own customers inside its product. The provider supplies the accounts, payment rails and reporting. The platform supplies the customer relationship and the user experience.
Are embedded account providers the same as BaaS providers?
Largely, yes. Banking-as-a-service, or BaaS, is the market's usual name for the same category: accounts, payments and often cards delivered to a platform through an API. The label hides the difference that matters, which is whether the provider is a licensed bank, an e-money institution over a pooled safeguarding balance, a software layer over a sponsor bank, or a custodian holding named accounts on a non-lending model.
What is the difference between a named account and a virtual account?
A named account is held in the customer's own name at the institution, with the customer as the legal account holder. A virtual account is a reference number that routes payments into a pooled account held by the provider, with the customer's entitlement recorded on the provider's ledger. Both can pass an audit. Only the named account puts the customer's name on the account the money actually sits in.
Which embedded account provider is best for a UK platform?
ClearBank and Griffin are both UK-licensed banks with accounts APIs, so the account, the licence and the scheme access sit in one place. ClearBank offers deeper direct scheme participation. Griffin offers dedicated per-customer safeguarding accounts and FSCS protection on eligible deposits. Lorum fits UK platforms that also operate in other currencies and need named custody across markets.
Which embedded account provider is best for a US platform?
Unit is the fastest route for a US-only platform launching accounts and cards, with deposits held at a partner bank and accounts eligible for pass-through deposit insurance. The platform should know which bank holds the money and how the ledger reconciles to it daily. Lorum fits US-connected platforms that clear in dollars alongside other currencies and need named custody rather than a partner-bank structure.
Why does the balance-sheet model matter for embedded accounts?
Because it decides what happens to customer money in a stress event. An institution that lends against or invests customer balances carries balance-sheet risk that a fully reserved, non-lending model does not. For a platform holding money for thousands of customers, that difference is the one a regulator will examine first.
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