A software development company headquartered in Kalispell, Montana, specializing in payment and fintech applications.
Building a payment platform is hard. Custody, compliance, banking integrations, ledger systems — the complexity is enormous. Most companies don't have the specialized engineering talent to build it all in-house.
That's where we come in. SDK Pay is a software development company that builds payment applications for fintech companies, neobanks, exchanges, and enterprises. We bring deep expertise in digital wallets, compliance engineering, and financial system architecture — so our clients can focus on their business, not infrastructure.
We specialize exclusively in payment and fintech software. No generalist agency — pure financial technology engineering.
Regulation isn't an afterthought — it's baked into our architecture from the first commit.
We don't just build and hand off. Ongoing support, maintenance, and feature development for the life of your platform.
Pre-built modules and proven architecture patterns mean your platform ships in weeks, not months.
Backend, frontend, mobile, infrastructure, compliance — one team handles everything.
Architectures designed for millions of transactions. Your platform grows without rewrites.