Microsoft 365 setup and support that stays manageable.
Castle IT is a Microsoft Cloud Solution Partner. We migrate email and files, harden the tenant, right-size licenses, and support day-to-day changes—so Microsoft 365 works for the business.
From migration to day-to-day management.
Setup & migration
Email, files, and collaboration tools with a planned cutover and rollback path.
Teams, SharePoint, OneDrive
Configured for how your team actually works—not a default template left behind.
Licensing
Right plans per role, unused seats removed, billing simplified through one partner.
Security hardening
MFA, Conditional Access, and Defender for Business tuned for your tenant.
Ongoing management
Users, licenses, troubleshooting, and changes on an agreed support plan.
Azure when needed
Identity, virtual machines, and cloud infrastructure scoped to a real workload.
Microsoft 365 or Google Workspace?
If your team already lives in Word, Excel, and Outlook, Microsoft 365 is usually the better fit. If everyone works only in the browser and already runs Google Workspace well, staying there can make sense. We help you choose based on apps, compliance needs, and support reality—not a product pitch.
Why partner support matters
Default Microsoft 365 settings are rarely enough for a business that handles client data, remote staff, or regulated work. As a Cloud Solution Partner we configure the tenant, escalate through Microsoft when needed, and keep licensing and support in one place.
Common questions
What is included in Microsoft 365 Business Standard?
Typically desktop Office apps, Teams, SharePoint, OneDrive, and Exchange Online. We confirm current entitlements and match plans to each role.
How long does a migration take?
Most small Boise businesses under about 25 users finish in 1–3 days for email, accounts, core security settings, and handoff.
Can Castle manage our licenses?
Yes. As a Microsoft Cloud Solution Partner we can handle licensing, billing, and day-to-day management with regular right-sizing.
Is Microsoft 365 secure enough out of the box?
The platform is strong; default configuration often is not. We enable MFA, Conditional Access, and Defender for Business where appropriate.
Related services
See managed IT, cybersecurity, and onsite support.
Start with a straightforward conversation.
Tell us what is working, what is getting in the way, and what the business needs next.