
Data people from Warsaw.
Microsoft people since 2001.
Onex Group is a Microsoft Solutions Partner and Fabric Featured Partner specialising in data and AI. We help mid-market and corporate organisations organise their data with Microsoft Fabric, turn it into insight with Power BI and data science, and keep it secure and well governed with Microsoft Purview, so your people and your AI can make better decisions.
We believe every organisation should be able to trust its numbers and act on them. As a Microsoft Solutions Partner and Fabric Featured Partner, we build the data foundations that make that possible: a single source of truth, reporting that runs itself, and data that is ready for Copilot and AI agents. After all, AI is only as good as the data behind it.
Our values
Our values shape how we work with every client, from the first conversation to long after go-live. They are what you can expect from us, and what our team holds itself to every day.
Accountability
We take ownership of the outcome, not just the task. We are clear from the outset about what we will deliver and what it will take, flag difficulties early and treat the success of your project as our own.
Proactivity
We don't wait to be asked. If we spot a better way of working, a risk on the horizon or an opportunity hidden in your data, we tell you, and we come with a proposed solution.
Professionalism
Everything starts with your business needs. We prepare thoroughly, base our recommendations on hard data rather than opinion and build solutions that scale. If something goes wrong, we own it, fix it and learn from it.
Collaboration
We work as an extension of your team, towards one shared goal. We share our knowledge openly, give honest and constructive feedback, and are not afraid to challenge the status quo when it stands in the way of results.
Flexibility
Priorities shift and technology moves fast. We adapt quickly to new requirements and are ready to go beyond the original scope when your project calls for it, without losing sight of the goal.
Want to work this way?
See open positions in our Career section.
New looks, one X.
From a teenager’s website to a Solutions Partner, the mark grew with the company. The X has been in it since 2008. Today it is four arrows pointing to the centre.
Twenty-five years with Microsoft
It all began in 2001 with a simple website dedicated to Windows XP. What started as a hobby project quickly grew into CentrumXP, one of Poland’s most popular technology portals focused on Microsoft technologies. In 2005, that passion evolved into a professional business, and Onex Group was born.

Jakub Hryciuk, aged 15, starts CentrumXP.
Aged just 15, Jakub Hryciuk launches CentrumXP, a website dedicated to Microsoft products.
The hobby becomes a company.
The business is formally founded under the CentrumXP name.

We start selling Microsoft software.
We launch mail-order sales of Microsoft software, starting with Windows XP and Office 2007 packages.
E-learning joins the offer.
We start selling e-learning training courses on Microsoft products.
Our first Office 365 licence.
We sell our first Office 365 Small Business Premium licence.

Microsoft Partner of the Year for SMB.
Just two years after we started selling Office 365, we receive the Microsoft Partner of the Year title for the SMB market.

Microsoft Country Partner of the Year.
We win Microsoft Country Partner of the Year for Poland.

A worldwide Partner of the Year finalist.
We are named an international finalist for Microsoft Small & Midmarket Cloud Solutions Partner of the Year.
Our software house is born.
We spin off our in-house development department as a separate software house.
CentrumXP becomes onex.store.
The CentrumXP shop is replaced by onex.store, an e-commerce platform offering hardware, software and services for consumers and SMBs.
A broader team of Microsoft experts.
We bring leading specialists on board to deliver end-to-end analytics, modern workplace and software projects for Microsoft clients.
Data & AI becomes our core focus.
We make Data & AI our core focus, build a strong team of certified experts and expand internationally, helping organisations turn their data into real business value.
Twenty-five years with Microsoft.
From the launch of CentrumXP in 2001 to Onex Group today.
The hobby becomes a company, first under the CentrumXP name.
Specialisations & Solutions designations
Microsoft awards Advanced Specialisations only to partners who can prove deep technical skill and a track record of successful customer projects. Each one is independently audited, so you know exactly what you are getting.
Our credentials span the whole data journey, from platform and analytics to AI, adoption and secure collaboration. Whatever your starting point, we have the accreditation to take you further.




Global reach
We support mid-market and corporate organisations, helping them modernise their technology, data and business processes with Microsoft solutions. We work with clients remotely and on site, delivering projects tailored to their business needs.
Warsaw · HQWarsaw
al. Niepodległości 18, 02-653 Warszawa
Częstochowa
Poland
Europe & United States
Real Estate, FSI, Pharmaceutical Manufacturing







Our core team
Behind every project is a team of certified Microsoft specialists: data engineers, analysts, data scientists and architects who speak the language of business as fluently as they speak technology. You work directly with the people who build your solution.
Join our team
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Malwina Kawęczyńska
Want to join us?
We're always looking for people who love data and Microsoft technologies. Send us your CV or check our open roles.