If you're building a fintech, a neobank, or any app that wants to offer its users a real bank account, a debit card, or ACH transfers, you have two options: become a licensed bank yourself (slow, expensive, heavily regulated), or partner with a "banking-as-a-service" (BaaS) platform that already has the banking licenses and just gives you an API. BaaS platforms sit between your app and an actual FDIC-insured sponsor bank, handling the regulatory relationship so you can focus on the product. Treasury Prime and Synctera are two of the established names in this space, alongside Unit and Highnote.
Treasury Prime
Treasury Prime's core pitch is choice: instead of locking you into a single sponsor bank, it gives you access to a network of 20+ partner banks, which matters if your specific business model (say, crypto-adjacent, or high-risk verticals) gets rejected by one bank's risk team but approved by another's. It reports $10B+ in facilitated deposits and 2.5M+ accounts across its bank network, and bundles virtual ledger accounts with ACH, wire, and real-time payments under one API, plus a developer sandbox to build against before you're live with real regulatory oversight.
The catch: there's no public pricing, and — like every BaaS platform — you're still going through a real compliance and bank-onboarding process, not just an API signup. This only makes sense if you actually need regulated banking rails (real accounts, real cards), not just a way to move money, which is a much lighter lift.
Best for: fintechs and neobanks that have been rejected by, or are wary of relying on, a single sponsor bank, and want the flexibility of a multi-bank network from day one.
Synctera
Synctera positions itself as a full integrated stack — accounts, cards, and payments on one platform — with built-in risk and compliance tooling and active management of the sponsor bank relationship itself, not just the technical connection to it. Its clearest differentiator is explicit support for the Canadian market alongside the U.S., which matters if Treasury Prime's U.S.-only footprint doesn't cover your expansion plans.
The catch: like its competitors, there's no public pricing and limited transparency on minimum volume requirements or cost structure — you'll need a sales conversation to know if it fits your budget. It's also explicitly positioned toward larger enterprise programs rather than bootstrapped startups.
Best for: companies that need banking infrastructure in both the U.S. and Canada, or that want the sponsor-bank relationship actively managed for them rather than just API access to it.
Treasury Prime vs Synctera at a glance
| Treasury Prime | Synctera | |
|---|---|---|
| Country coverage | United States | United States and Canada |
| Sponsor bank model | Network of 20+ partner banks | Manages the sponsor bank relationship directly |
| Standout feature | Multi-bank flexibility if one bank says no | Cross-border US/Canada support + built-in risk tooling |
| Reported scale | $10B+ deposits, 2.5M+ accounts facilitated | Not publicly disclosed |
| Best for | Startups needing bank flexibility or higher-risk verticals | Enterprise programs spanning the US and Canada |
Where Unit and Highnote fit in
Unit is worth a look if scale and proof points matter most to your evaluation — it reports $100B+ in annual transaction volume and 2M+ end users served, plus a "Ready-to-Launch" managed deployment option for teams that want to move faster than a fully custom API integration. Highnote is the one to check if your primary need is card issuing and credit (including BNPL) rather than deposit accounts — it combines card issuing, payment acquiring, and credit on a single modern GraphQL API, aimed at getting a card program live in weeks rather than months.
The honest verdict
Pick Treasury Prime if you want the safety net of multiple sponsor banks, especially if your business model is the kind that gets rejected by conservative banks. Pick Synctera if you need U.S. and Canada coverage under one platform, or want the sponsor-bank relationship actively managed rather than DIY. Either way, get quotes from Unit and Highnote in the same round — none of these platforms publish pricing, and BaaS contracts are negotiated deals, not off-the-shelf subscriptions.