We build calm, practical systems for service-based businesses.

Kitrin exists to help professionals run their businesses with clarity and confidence. We design software and services that connect operations, finances, and time — without unnecessary complexity.

Our work is shaped by real-world practice, long-term client relationships, and a belief that good systems should support your work, not distract from it.

Founded Kitrin with a focus on healthcare practitioners

Kitrin began by listening. After speaking with over 120 psychologists, we learned that billing and administration were taking time away from client care — and that existing systems weren’t built for real practice needs.

Expanded into managed services

It became clear that software alone wasn’t always enough. We introduced a managed service offering, allowing practitioners to move seamlessly between self-managed software and hands-on operational support as their needs changed.

Expanded to the UK and beyond healthcare

As we grew internationally, we broadened our focus to include other service professionals such as financial advisors — while remaining deeply committed to our healthcare roots.

Global launch of IsoEvolve

IsoEvolve marked a new chapter: a unified platform designed to deliver operational and financial clarity across countries, professions, and practice sizes.

Our customers love us

We work closely with professionals who value reliability, discretion, and long-term meaningful partnerships. Our customers choose Kitrin not for flashy features, but for systems that quietly work — day after day.

Our people

Behind Kitrin is a small, focused team of people who care deeply about building useful, dependable systems.

We combine software development, enterprise-level operational experience, and real-world client support — which means we understand both how systems should work and how they actually get used.

We believe good work comes from clarity, respect for complexity, and a genuine understanding of the people using what we build.

We believe clarity leads to better decisions — and better outcomes.

We focus on building systems that reduce friction, improve visibility, and support sustainable businesses.

When professionals have clarity over their time, finances, and operations, they can do their best work — consistently.

Join us in building calm, meaningful software

We’re always interested in thoughtful, capable people who care about clarity, quality, and real-world impact.

If you enjoy solving practical problems and building systems that genuinely help others, we’d love to hear from you.