Who we are

Klarrio is a Belgian-based cloud-native systems integrator and engineering firm that has been building large-scale data platforms for enterprise clients since 2016. With offices in five countries, we primarily work with organizations in telecom, utilities, financial services, mobility, government, defense, and manufacturing.

We mostly build in open source. No vendor lock-in. No long-term handcuffs. Lower total costs. Every platform is built to be run by your team, unless you want us to.

What We Do

All of our services are built around the same principle: your team should fully own and understand what we build together. We're not here to create a dependency on Klarrio. We're here to build something your people can run on their own.

Consulting

Data architecture strategy, security by design, distributed computing, infrastructure advisory. We help you make the right decisions before a single line of code is ever written.

Platform Engineering

We design and build large-scale, cloud-native streaming data platforms tailored to your infrastructure and needs. No templates. No shortcuts. No monolithic approaches.

Support

We provide ongoing support and maintenance at the specific levels you want. Our goal is always to help and empower your entire team every step of the way. 

Built to be Handed Over

We train your engineers to run the platform independently. Every engagement ends with your team fully capable of owning, operating, and evolving the system on their own.

Ten Years.

Seven Industries.

TELECOM

High-volume, real-time data infrastructure for telecom networks can’t afford downtime. Full performance of the platform means full control when latency matters most.

UTILITIES

Smart-grid, sensor, and operational data generate enormous volumes of continuous streams that need to be resilient, processed, and acted on in real time.

FINANCIAL SERVICES

Data sovereignty is critical for financial institutions. So is regulatory compliance. We build infrastructure so your data stays your own while satisfying mandatory compliance standards.

MOBILITY

Real-time streaming data for transport, logistics, and connected systems. Resilient by design, with a loosely coupled architecture that keeps moving even when individual components don’t.

GOVERNMENT

Public sector data belongs on infrastructure that both you and the government control. No hyperscaler dependencies. No exposure to foreign data regulations. Sovereignty.

DEFENSE

Security, speed, interoperability, and reliability. Mission-critical requirements can't afford room for error. Or ignore mandatory regulatory requirements.

MANUFACTURING

Real-time data ingestion and processing, OT/IT integration, protocol interoperability, and timely operational insights aren’t optional. They’re critical.

~100

people from 20 countries

10

years building cloud-native, hybrid and open source data platforms

100%

organic growth,

zero VC funding

ISO

27001-certified and built on Security by Design principles

Data sovereignty isn’t your destination. It’s your foundation.