Built on Open Source.

Owned by You.

For CTOs and CIOs who need to own their infrastructure.

Klarrio builds vendor-agnostic, cloud-native streaming data platforms for enterprises that need to own their infrastructure. No lock-in. No black boxes. No compromises.

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Who we are

► Our Mission

Klarrio is a Belgian, cloud-native services firm that has been building large-scale data platforms for enterprise clients since 2016. We work across five countries with organizations in telecom, utilities, financial services, mobility, and government.

We build exclusively on open source. That means no vendor lock-in, no proprietary dependencies, and no situation where your data infrastructure is owned by someone other than you. Every platform we deliver is built to be run by your team, not ours.

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Why Open Source?

► Open source is the foundation. Here's why it matters.

We've built on open source from day one. Not because it's trendy, but because it's the only honest way to give enterprises full control over their own infrastructure. You can inspect it, modify it, and hand it to any engineer on your team. No licensing surprises, no vendor pulling the rug, no black boxes sitting in the middle of your data pipeline.

We work with stable, well-maintained projects like Kafka, Spark, Kubernetes, Flink. Cutting edge, not bleeding edge.

Enterprise Data Infrastructure, Built to Last

We work with enterprise organizations across telecom, utilities, financial services, mobility, and government, anywhere large-scale data infrastructure needs to be reliable, sovereign, and built to last.

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Our Process

► Our Methodology

Every engagement starts with a clear understanding of your infrastructure and ends with your team running it independently. No proprietary frameworks, no lock-in to our processes, just a straightforward approach to building platforms that last.

Understand

We start by learning your infrastructure, your team, and your constraints. No assumptions, no cookie-cutter architecture.

Design

We design a tailored, vendor-agnostic platform built on stable, well-maintained open source. Kafka, Spark, Kubernetes, Flink. The right stack for your needs, not ours.

Build

We build with loosely coupled architecture so individual components can fail without taking down the entire system. Resilience is designed in, not bolted on.

Transfer

We train your engineers to run the platform independently. The goal is always for your team to own it fully. That's not a risk to us; it's the whole point.