What we do
We help financial institutions design and operate modern core banking ecosystems using open technologies. Our approach prioritizes:
- Independence over vendor lock-in
- Transparency over opacity
- Architecture over shortcuts
Our Core Banking Vision
Core banking should not be a rigid service. It should be a programmable platform. Our vision brings together modular architecture, composability, and operational control — so institutions can evolve at their own pace. Built to scale. Designed to adapt. Structured for real-world complexity. Explore our Core Banking architecture →
How you can use Lerian
Lerian gives you two ways to run the platform: SaaS (fully managed by Lerian) or BYOC (deployed in your own cloud or on-premises infrastructure). In SaaS, we handle the infrastructure, updates, and operations — your team focuses on building. In BYOC, you deploy Lerian in your environment with full control over data, networking, and compliance. Both models support the full product portfolio. Choose based on your operational needs, regulatory context, and team structure. Compare deployment models →
Source-available Excellence
Source-available is not a marketing label for us. It is a foundation. Midaz was designed to be extensible, transparent, and production-ready — giving developers the freedom to build, integrate, and innovate without hidden constraints. You can inspect it. Extend it. Own it. Discover our Source-available approach →
Start here
Why Lerian
Understand the problems we solve and how the platform helps — in business terms.
Core Banking vision
Learn about the four architectural pillars behind Lerian’s platform.
Get in Touch
Have questions? Exploring a partnership? Evaluating architecture? Let’s talk. Contact us →