Our books on Business Intelligence are best-sellers
The books we have written have become essential reads for many professionals all around the world. Most of them are published by Microsoft Press, such as Optimizing DAX, Second Edition, DAX Patterns, Second Edition, and The Definitive Guide to DAX – 2nd Edition.
We are established BI experts
We have reached Microsoft Gold Partner* in Business Intelligence status and we have achieved several Microsoft certifications, including the exclusive SSAS Maestro certification.
* Microsoft Gold Partner ID 1019349 - Loader is the legal entity in Europe
We are regular speakers at major international BI conferences, including Microsoft Ignite, Data Insight Summit, PASS Summit, and Sqlbits.
We are in the knowledge transfer business
We are not protective of our knowledge, we want to share it with everyone!
For this reason, we organize classroom courses all around the world. To date we have already taught 387 classroom courses in dozens of countries, and counting! We have recorded video courses about DAX, SSAS, Data Modeling, Data Presentation, and more.
We also deliver custom trainings to companies who have special requirements or who want to learn on their own data.
We provide tailor-made consulting services
We offer consulting services, such as Remote Consulting – for quick issues and expert advice on Power BI, Power Pivot and Analysis Services – Architectural Review, Custom Training and Mentoring.
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Marco Russo
Consultant & Mentor -
Alberto Ferrari
Consultant & Mentor -
Daniele Perilli
Creative Designer
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Launched in 2004, SQLBI (this website) has become an essential reference in the BI world, releasing in-depth articles on Microsoft technologies every other week, free tools, videos and high-quality trainings.
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Launched in 2018, DAX Guide is the go-to reference on the DAX language. It integrates and expands on the Microsoft documentation.
dax.guide -
Launched in 2021, DAX.do is an online playground to write, run and share DAX queries.
dax.do -
Launched in 2013, DAX Patterns collects many real-world use cases about Power BI / Power Pivot / SSAS, showing how to use DAX properly.
daxpatterns.com -
Launched in 2014 as a service to beautify queries, DAX Formatter is used by thousands of users every day, and by third-party tools like DAX Editor.
daxformatter.com -
Launched in 2022 as a desktop tool, Bravo is the perfect companion for your Power BI Desktop.
bravo.bi -
Launched in 2024, DAX Optimizer is a powerful service that helps you optimize your models and improve the performance of your Power BI reports.
daxoptimizer.com 
Launched in 2016, OKVIZ is where high-quality Power BI visuals come from! Examples include Card with States, Smart Filter, and Bullet Chart.
okviz.com
Synoptic Designer is the companion tool of Synoptic Panel visual for Power BI. It allows users to transform any image into a dynamic map.
synoptic.design