Complete Managed Microsoft 365 Cloud Services

Your IT system and AI strategy.
Built entirely in Microsoft 365.

We move your email, files, phones, security, and device management into Microsoft 365, then build your company’s AI strategy on that foundation with Microsoft Copilot. For private companies with 30 to 200 users across the U.S. and Canada.

Talk to Us24 Years In Business
The Situation

When we talk with companies for the first time, this is usually what we hear. They've got Microsoft 365 licenses they're not fully using, and they want to do more with them. They typically have Microsoft 365 for email and the Office desktop apps, along with other cloud services and security tools that are often siloed, not fully integrated, and redundant to what they're already paying for in Microsoft 365. And they still have on-premises servers: domain controllers, a file server, a print server, and a SQL server for any on-premises business application.

Meanwhile, their most senior people, who have the deepest access to sensitive data, are bringing in their own AI subscriptions. One uses Claude, another uses a free version of ChatGPT, and another tried Copilot without any training and gave up on it. They assume these third-party AI services are secure, but they're not 100% certain. There's no AI policy or strategy, so nobody knows where company or client data is going. And nothing stops anyone else from connecting these AI tools to Microsoft 365, or from copying and pasting confidential information into them.

Here's what we'd be doing together:

  • Simplifying your licensing to Microsoft 365 Business Premium with Copilot Business, or Microsoft 365 E7 for the top cloud service system Microsoft makes, and Microsoft 365 F3 for tablet, smartphone, and kiosk users.
  • Moving your shared company files into Teams, SharePoint, and OneDrive, still accessible through Windows File Explorer the way your people are used to.
  • Replacing your EDR/AV with Microsoft Defender XDR.
  • Rolling out Intune for device management and deployment.
  • If you go all the way, moving your phone system to Microsoft Teams, your remaining servers to an Azure virtual network, and your virtual desktops to Windows 365.
  • And replacing your firewall and VPN with Microsoft Entra ID.

When we're done, here's what you get to shut off and stop paying for: your file server, domain controllers, backup and disaster recovery system, print server, high-end firewall, VPN, and whatever third-party security and cloud service stack you were stitching together before. What's left on-site is an internet router, a Wi-Fi access point, a switch, and a network printer. That's it. Your back end will be 100% cloud services, with no hardware or software to integrate, maintain, or refresh ever again. And you'll have full business continuity included for free.

And here's the bigger picture: everything above is the foundation for your company's AI strategy. Inside Microsoft 365, we will set an AI policy so all your company's AI runs through Copilot, and your users have a choice of ChatGPT or Claude language models, inside your data and security guardrails. None of your information is used to train the models. Your people get answers from the data instead of hunting for files, and from there we extend it to your business applications and automated workflows.

Your users need training, too. AI only works when people know how to use it well, and how to use it safely, so we train them.

What We'd Talk About

If you called us today, here's the conversation.

  • First, we listen. We learn your current environment and what you want to accomplish.
  • Simplifying your licensing to Microsoft 365 Business Premium with Copilot Business, or Microsoft 365 E7, and Microsoft 365 F3 for tablet, smartphone, and kiosk users.
  • Moving shared files to Teams and OneDrive, still reachable like mapped drives in File Explorer.
  • Intune to build, update, and monitor your Windows computers, and to protect company data on personal phones.
  • Taking computers off the local domain — Entra ID and Intune only.
  • Replacing your AV/EDR with Microsoft Defender XDR, and your email filtering and archiving with Defender for Office 365.
  • Retiring your print server with Universal Print, and your phone system with Microsoft Teams Phone.
  • Retention policies and a third-party Microsoft 365 backup.
  • Setting an AI policy and AI strategy so all company AI runs through Copilot, with your choice of ChatGPT or Claude models, inside your data guardrails.
  • Ongoing support — backing up your IT team, or being your IT department.
Microsoft AI Cloud Partner

Microsoft cloud is all we do.

We're a direct Microsoft AI Cloud Partner with solution designations in Modern Work, Security, Infrastructure (Azure), and Support Services.

See How We're Different →
Microsoft Solutions Partner — Modern WorkMicrosoft Solutions Partner — Azure InfrastructureMicrosoft Solutions Partner — SecurityMicrosoft Solutions Partner — Support Services
Services

Everything routes through Microsoft 365.

AI → Microsoft Copilot

Your company-wide AI strategy built inside Microsoft 365.

Files → M365

Retire your file server. Move your shared files into Teams, SharePoint, and OneDrive.

Security → M365

Replace your patchwork of AV/EDR/device tools with Microsoft Defender XDR and Intune.

Security → Penetration Testing

Quarterly vulnerability assessments of your Microsoft 365 tenant and network, plus an annual human penetration test.

Phone System → Teams

Your desk phone lives inside Teams. Works anywhere your computer does.

Desktops → Windows 365

Go fully virtual with Windows 365 Cloud PCs, if and when you're ready.

Servers → Azure

Migrate legacy apps into an Azure virtual network. No more refresh cycles.

Training → Microsoft 365

Short video lessons and live training, plus phishing tests that teach the people who fall for them.

Proof
“I found Wayne Chapin's videos on YouTube showing how to effectively use Microsoft cloud solutions in a way that perfectly solved our problems... Now we have our data stored on the cloud where it is confidently secured, restorable, and allows us to collaborate in a way that works for everyone.”
Greg Davis— Greg Davis, President & CEO, Avdoxa AVL Design Experience Group
“We're confident in the security, comfortable with the technology, and grateful to have a partner we trust... moving to the Microsoft cloud with Xerillion shifted us from feeling like we were on our own to feeling fully supported.”
Daniel Bunn— Daniel Bunn, President & CEO, Rubicon Investments
Read more client testimonials →
Wayne Chapin, President of Xerillion
Meet Wayne

Hi, I'm Wayne Chapin, President of Xerillion. I've been in IT for 29 years and have run Xerillion for 24 of them, and we still work with our very first client. I make these videos myself because I want you to know who you'd be working with before you ever call.

Meet Wayne →

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