Xerillion Corporation

Xerillion Corporation is a IT Support in Palatine, IL. The firm rebuilds entire IT systems inside Microsoft 365, eliminating file servers, VPNs and legacy infrastructure while securing laptops with Intune and Defender. It serves businesses with thirty to two hundred computer users across the United States and Canada, offering services such as migration of files to Microsoft 365, security and device management, Microsoft Teams Phone System, Windows 365 Cloud PCs, AI integration for Microsoft 365, and managed Azure services. With a rating of 4.80, Xerillion supports roughly 250 companies and about eight thousand end‑users, providing both full‑service outsourced IT and back‑end support for internal IT departments.

The company’s approach focuses on replacing legacy infrastructure with a fully integrated Microsoft 365 cloud environment for security, collaboration and device management. As a direct Microsoft AI Cloud Partner, Xerillion holds solution designations in Modern Work, Security and Infrastructure, and is certified to sell and support Microsoft Government Cloud for DoD/ITAR‑compliant organizations. Its services include live helpdesk during regular business hours, after‑hours phone‑in call‑back support, flat‑rate backend cloud monitoring, remediation, training and unlimited CIO strategy meetings. President Wayne Chapin leads a team that delivers ongoing monitoring, security tuning and user assistance to keep client clouds healthy long after deployment.

Xerillion’s office is located on W Colfax St. It sits a short walk from the Palatine Post Office and is about four‑tenths of a mile from West Palatine Road, Salt Creek and Cedar Park. The Palatine train station and the Margreth Reimer Reservoir are each roughly half a mile away, placing the business within easy reach of key community landmarks.

By leveraging deep expertise in Microsoft 365 and Azure, Xerillion provides Palatine businesses with a reliable, cloud‑first IT foundation that simplifies management and strengthens security.