Europe's leading Microsoft Fabric migration experts.
We were among the first in Europe to successfully migrate an enterprise client to Microsoft Fabric, recognized in an official Microsoft Customer Story. Let us guide yours.
oneLake GmbH - Official Dentsu partner
55 % faster data replication delivered
10,000+ employee enterprise migrated
Recognized by Microsoft. Trusted by Dentsu.
Official customer story · Microsoft x Dentsu
"With extensive testing, we experienced all of the issues, but that helped us mature quickly and educate the rest of the organization."
Dennis Mausbach
Solution Architect & Co-Founder, oneLake GmbH
Migration results · Dentsu x oneLake GmbH
55%
Faster data replication after migration
>20 min
Data sync time, down from 45+ minutes
10k+
Employees in migrated enterprise organization
1st
Among the first in Europe to complete enterprise Fabric migration
Our trusted partners
Microsoft
As a certified Microsoft partner, we harness the full power of Azure – from massive data storage to modern AI models. This way, we create scalable, secure cloud platforms that combine agility, intelligence, and cost efficiency.
Databricks
With the Databricks Lakehouse, we combine the strengths of data lake and data warehouse. Whether real-time analytics, AI, or machine learning – we help companies accelerate innovation and turn data into competitive advantages.
Built for teams running on Microsoft stack
Our clients have one thing in common: they're already invested in the Microsoft ecosystem and ready to unlock the full potential of Microsoft Fabric, without the trial-and-error. We bring the hands-on migration experience that most consultancies are still building. You get a team that has already solved the hard problems at enterprise scale.
BI & Data Platform Teams
Teams running Power BI at scale who want to migrate to the full Microsoft Fabric stack — including Lakehouses, Data Warehouses, and Pipelines — without disrupting existing reports and semantic models.
Enterprise Organisations with Legacy Warehouses
Companies on Azure Synapse Analytics, on-premise SQL Server, or fragmented data silos across business units — ready to consolidate onto a modern, governed data estate in Microsoft Fabric.
CDOs & IT Leaders Planning a Migration
Decision-makers who need to present a solid migration roadmap, with realistic effort estimates, cost implications, and risk assessment - before committing budget and resources.
Dynamics 365 & SAP-driven Organisations
Enterprises using Dynamics 365 or SAP as their core ERP who want to build a unified analytics layer on top, feeding real-time data into Fabric for cross-domain reporting and AI-ready insights.
How our customers use real data to solve real problems and what changed after.
Transportation company
Freight Management
AI Tour Planning
Route optimization is no longer a static exercise. oneLake GmbH has developed a dynamic, AI-driven tour planning system that continuously adapts to changing operational conditions. By combining mathematical optimization with machine learning, the solution transforms logistics from manual planning to intelligent decision support.
Dentsu
Global advertising agency
Data analysis with the Azure platform
A global marketing and communications company is modernizing its data analysis with an Azure-supported platform. The introduction of Power BI has replaced manual processes and enabled interactive, self-service reporting. Within just a few months, the Samurai data platform was created, supported by Sensei and Ronin. Today, the ecosystem comprises nearly 23,000 reports and continues to grow, providing an expanding user base with high-quality analytics.
GasLINE
Telecommunications network company
Optimization Through Transformation
Working closely with the IT department at GasLINE GmbH & Co. KG, we built a modern data warehouse (MDWH) based on Microsoft Azure technologies, which now serves as a central data interface.
How it works
Provide information about your current environment
Detailed review of your data landscape
Review calculated migration overview
Provide information about your current environment
Detailed review of your data landscape
Review calculated migration overview
Fabric Migration Calculator
Answer 6 questions about your infrastructure — get your migration timeline, risks and recommendations.
Enterprise Migration Calculator — pillar by pillar in 6 steps
How is your organization structured?
This defines your architectural vision — it does not affect the effort timeline
We work with you to design and implement data solutions that move your business forward.
Strategy & consulting
We develop tailored data strategies, create roadmaps, and help establish a sustainable data culture in the company.
Data platform & technology
We design modern platforms with Microsoft Fabric, Databricks, or Snowflake – scalable, performant, and future-proof.
Data management & governance
We ensure data quality and compliance through robust MDM processes and clear governance frameworks.
Enablement & change
We empower teams through training, workshops, and coaching to work data-driven and use new technologies.
Analytics & business intelligence
From dashboards to machine learning – we create understandable insights and self-service analytics for all specialized departments.
Cloud migration & modernization
We migrate your data securely to the cloud, modernize systems, and make your infrastructure scalable and flexible.