Why Microsoft 365 Business Premium Is the SMB Operating System
Most growing companies do not have an IT strategy. They have a pile of subscriptions.
It accumulates one emergency at a time. Email came first, back when there were six of you. Then someone needed shared files, so you bought a file-sync tool. Then a chat app, because email got noisy. Then a password manager, after the first scare. Then a separate login system, because keeping track of who had access to what had become its own part-time job. None of it was a decision. Each piece solved the problem that was on fire that week, and now you are paying for a dozen tools that do not talk to each other and a team that has to remember which one does what.
There is a better way to think about this, and it starts with one idea: your company needs an operating system, not a pile of apps. For a company in the 20 to 100 employee range, the best operating system on the market is Microsoft 365 Business Premium. Let me walk through why, what is actually in it, and what it lets you stop paying for.
What "operating system" actually means here
Your laptop has an operating system. It is the layer underneath everything that handles the boring, essential jobs so the apps on top can do their work. You do not think about it. It just runs.
A company needs the same thing. Underneath your accounting software and your CRM and whatever industry application you live in all day, there is a layer that has to handle four jobs for every person on your team: who they are, what device they work on, how they are protected, and how they work together. Identity, devices, security, collaboration. Get that layer right and everything on top gets easier. Get it wrong and you feel it everywhere, every day, in a hundred small frictions you have stopped noticing.
Business Premium is that layer. It is not one product. It is the bundle that covers all four jobs with one vendor, one bill, and one set of rules that work together because they were built to.
What is actually in the bundle
Here is the part most people miss. They think Microsoft 365 is "Office plus email." That is the smallest part of what you are getting. The Business Premium bundle is built for exactly the company that has outgrown the pile of apps. The pieces that matter:
Identity. Entra ID is the system that decides who your people are and what they are allowed to touch. It is the front door to everything. It enforces multi-factor authentication, controls access by role, and gives you one place to grant or revoke it. When someone joins, you create them once. When someone leaves, you shut them off once. That single capability quietly fixes the scariest gap most growing companies carry: the departed employee who still has a live login ninety days later.
Devices. Intune manages the laptops and phones your team works on. It sets the standards, pushes the updates, and lets you wipe a lost or stolen device remotely. The day someone leaves their laptop in an airport, this is the difference between a shrug and a disaster.
Security. Defender protects the endpoints and the email, which is where almost every attack actually starts. It catches the malicious attachment, the credential-harvesting link, the impersonation email pretending to be you asking finance to move money. This is not a bolt-on you buy later. It is in the box.
Collaboration. Email, Teams, SharePoint, and OneDrive. The meeting, the chat, the shared file, the document four people are editing at once. The collaboration layer your whole team lives in, with the files stored in a way you actually control and can recover.
Four jobs, one bundle, built to work together. That last part is the whole point.
What it lets you cancel
This is where the pile of apps starts to shrink, and where the math gets interesting.
Business Premium can replace your separate file-sync subscription, because OneDrive and SharePoint do that job. It can replace your standalone chat tool, because Teams does that job. It can replace the separate login-and-identity service you bolted on, because Entra ID does that job. Depending on how you have things set up, it can fold in the password and access management you are paying for elsewhere, and the device-management tool you may have bought on its own.
I am not going to tell you it cancels every line on your software bill. Your CRM, your accounting system, the industry-specific application your business runs on, those still exist alongside it. But the infrastructure layer, the plumbing, collapses from a dozen disconnected subscriptions into one. You stop paying several vendors to do jobs that one platform already includes. And you stop paying the hidden tax that never shows up on any invoice: the cost of making all those disconnected tools pretend to work together.
The add-on tax
Here is the part that surprises people. On the sticker, a basic productivity suite from another vendor and Microsoft 365 Business Premium land in roughly the same place per user. If you stop reading there, the cheaper-feeling option looks like a wash or a small saving.
Then you ask the real question: what do I actually need to run a responsible business? Identity and single sign-on. Endpoint detection and response, so you can catch ransomware on a laptop. Device management with remote wipe. Advanced email security and DMARC. Data loss prevention. A business phone system. An AI assistant. Patch automation. On a lighter platform, every one of those is a separate product you go buy, each one five to thirty dollars per user per month, each one another vendor, another login, another thing to configure and watch.
Add them up and the "cheap" stack routinely climbs into the eighty to a hundred and twenty dollar per user per month range once it is hardened for real-world risk. With Business Premium, almost all of that is already in the box, managed from one admin center, on one bill. The cheaper-looking license is cheaper because it does less, and the gap is exactly the set of things a growing company cannot afford to skip. We ran this comparison in detail for new businesses choosing a platform: Google Workspace vs Microsoft 365, the full head-to-head.
Why one platform beats best-of-breed
Smart people push back here, and the pushback is worth taking seriously. The argument goes: for any single job, you can find a tool that does it better than Microsoft does. A better chat app. A better file tool. A sharper point solution for this or that.
That is often true. And it still misses the point.
You are not buying tools. You are buying an operating model. The cost of best-of-breed is not the price of each tool. It is the integration tax: every seam between two tools is a place where things break, where security gaps open up, where a setting in one system quietly undoes a setting in another, and where your team loses time moving between apps that were never designed to meet. When identity, devices, security, and collaboration all come from one platform, they share the same rules and the same controls. A policy you set once applies everywhere. That coherence is worth more than any single tool being marginally better at its one job.
There is a security dimension to this too, and it is the one I care about most. The modern way to keep a growing company safe is not to bolt heavier locks onto aging on-premises servers. It is to move the work into a cloud platform where identity is the perimeter, where every device is managed, and where a compromised laptop can be recovered in minutes from versioned files instead of restored from last night's backup tape. Business Premium is that architecture in a box. The platform decision and the security decision are the same decision.
Where this fits in the bigger picture
Picking your operating system is one move, and it unlocks most of the others. Once you have committed to the platform, onboarding gets faster, offboarding gets safer, security stops being a special project, and your monthly cost gets predictable. The companies that pick a platform and commit move faster than the ones still trying to assemble the perfect set of parts. I have watched that race play out for years, and the committed company wins it almost every time.
If you want the full view of what IT should look like at your size, where this platform decision sits alongside hiring, cost, and security, read the operating manual for growth-stage companies. Business Premium is the foundation the rest of that manual is built on.
A quick note on how we sell this, because I want to be straight with you. Summit Technology is a Microsoft partner here in Salt Lake City, and we do not make our money marking up Microsoft licenses. We sell them at a fair discount off Microsoft's price, close to break-even, because the value we add is in running the platform well: setting it up right, managing it, and making sure it actually does the four jobs every day. The license is the foundation. Agility 365, our managed service, is the team that runs it for you. You can absolutely buy Business Premium and run it yourself. Most growing companies find that the platform is only as good as the hands managing it.
Your next move
If you are not sure what you are running today, or what you are paying for twice, take the 10-minute IT Stack assessment. It scores where your current setup is strong and where it is exposed, and it will surface the overlapping subscriptions you can probably retire.
Or just talk to us. Bring your current software bill. We will help you see which lines Business Premium already covers, so you have the full context to decide for yourself. No pressure, no jargon. Just a clear picture of what one platform decision could do for your company.
Frequently Asked Questions
What is the difference between Microsoft 365 Business Premium and the cheaper Business plans? The cheaper Business plans give you Office apps and email. Business Premium adds the parts a growing company actually needs: Entra ID for identity and access control, Intune for device management, and Defender for endpoint and email security. The lower tiers cover productivity. Business Premium covers the whole operating-system layer underneath it.
Does Business Premium replace my separate file-sharing, chat, and password tools? In most cases, yes. OneDrive and SharePoint cover file storage and sharing, Teams covers chat and meetings, and Entra ID covers identity and access. Depending on your setup, that lets you retire several standalone subscriptions you are currently paying for separately. Your CRM, accounting, and industry-specific apps still run alongside it.
Is Business Premium enough security on its own, or do I still need more? For most companies at this size, Business Premium is the right foundation: multi-factor authentication, managed devices, endpoint protection, and email filtering are all included. The gap is rarely the tools. It is whether they are configured correctly and watched. The license gives you the controls. Someone still has to turn them on and manage them.
Should I switch from Google Workspace to Microsoft 365? It depends on your email history, your culture, and the tools your team already lives in. Business Premium is a broader bundle, because it includes device management and security that Workspace sells separately. The migration is very doable, but it is a real project worth planning rather than rushing. We break the decision down in full here: Google Workspace vs Microsoft 365 for a new business. The right answer is the one that fits your company, not a blanket rule.
Can I buy Business Premium myself, or do I need a managed provider? You can absolutely buy and run it yourself. The platform is the same either way. The question is whether you have the time and the in-house skill to configure it correctly, keep it current, and respond when something breaks. The license is the foundation. A managed provider is the team that makes sure it does its job every day.