Welcome to Xen Bilişim 
Microsoft 365, Azure, cybersecurity, KVKK compliance and managed IT — for companies operating in Türkiye and Turkish operations of international groups.
Focus on Your Business 
Independent IT consulting grounded in Microsoft Cloud Adoption Framework, NIST CSF and ISO 27001 principles. From architecture to licensing optimization.
Learn more about IT Consulting
Acronis Cyber Cloud immutable backups, Microsoft Purview classification and DLP, monthly restore tests. Defense-in-depth from prevention to recovery.
Learn more about Data Security & Backup
Microsoft Azure landing zones, Microsoft 365 deployments, Windows 365 Cloud PC for hybrid teams. FinOps, region selection, KVKK alignment.
Learn more about Cloud Computing
A future that fits your business
About Us Since day one we have delivered IT consulting and managed IT services tailored to each customer's reality.
A dynamic, vendor-aware IT consultancy taking a 360° view of enterprise IT. 25+ years of field experience across cloud, data security, Microsoft 365 & Azure and digital marketing — turning technology from a cost line into a force that opens the road ahead of your business.
We build, run and secure your IT estate. Microsoft 365 and Azure for productivity, Defender / Sophos / Acronis for security and recovery, KVKK and ISO 27001 readiness for compliance, ERP consulting and digital marketing for revenue ops. End-to-end with one accountable partner.
Because we listen first. We map your specific need, design implementable solutions, respond fast, communicate transparently and stay accountable across long engagements. Your problem becomes our responsibility — not a ticket queued behind 10 others.
Our Partners 
Tailored to You Microsoft 365, Azure, Copilot, Intune — licensing, deployment and ongoing administration, one window.
Learn moreFinance, sales, stock and reporting in one cloud-first platform — vendor-neutral selection and rollout oversight.
Learn moreSEO, fast websites and AI-search-aligned content for B2B brands — the lead-generation engine.
Learn more
FAQ The questions we hear most often. If your specific situation isn't covered, we're a phone call away.
We provide enterprise IT consulting, managed services, cybersecurity, backup and KVKK / ISO 27001 readiness — primarily for SMBs and Turkish subsidiaries of international groups. Our work centres on Microsoft 365 + Azure, complemented by Sophos, Acronis and Kaspersky.
Our office is in Istanbul (Bağcılar). We support customers across Türkiye and remotely through Microsoft Intune, M365, Azure and modern endpoint management — no on-site visit required for most operations.
Yes. Many of our customers are Turkish subsidiaries of European, US or Asian groups whose HQ teams communicate in English. We provide bilingual (Turkish + English) reporting, documentation and direct communication with the headquarters team when needed.
Conceptually similar — both built on lawful basis, data subject rights and breach notification. KVKK (Law 6698) is Türkiye-specific with VERBİS registration, Turkish-language records and KVKK Authority interaction. For multinational groups, we map a GDPR baseline plus KVKK-specific adjustments.
Yes — we are a registered Microsoft partner, with over 25 years of hands-on experience across Microsoft 365, Azure, Defender, Intune and Copilot deployments.
Headquartered in Istanbul, we serve SMB through mid-market enterprises (typically 25–500 users). Service packages scale with your size; smaller teams get a managed-IT-style contract, larger ones a consulting + multi-vendor program.
Customer Voices 
Biopark Medical has been working with Xen Bilişim since 2016 on IT management, Microsoft product administration and cloud solutions. We thank them for their contribution to preparing our business for the future.
From day one of Nomad Otomotiv we have received consulting on almost every IT subject from the Xen Bilişim team. We thank them for their long-running support.
The Xen Bilişim family has managed all IT operations of Asist Gümrük (a customs brokerage in international trade) 24/7 for over a decade. Our thanks to them.
As Mensis Group we receive Microsoft cloud services and IT consulting/support from Xen Bilişim. We thank them for the contribution to digitalizing our business processes.
As an online retailer selling through marketplaces, we run data security, e-commerce process consulting and ERP transition with the Xen Bilişim team. Our long-running partnership keeps growing year by year.
Blog 
Microsoft will disable Basic authentication for SMTP AUTH by default in Exchange Online at the end of December 2026. Here is how to find the printers, scanners and old apps that depend on it, and what to replace it with.
Read more: Scan-to-Email May Stop Working in December 2026: What to Check
If a new hire spends the first morning waiting for a laptop, an email address and a password, the process is missing a step. Accounts, licences, devices and MFA, in the order they should happen.
Read more: New Hire Starts Monday: What IT Needs Ready Before Day One
When every user is a local administrator, ransomware has an easy job. How to find who really needs elevated rights and finish the switch in six weeks.
Read more: Should Employees Have Local Admin Rights? A Plan to Remove Them