How Much Does Managed IT Cost for a 5–25 Employee Phoenix Business?

The Short Answer: Standard Managed IT Runs $150–$200 per User, per Month

For a Phoenix business with 5 to 25 employees, Standard Managed IT Services from Onsite Technical Services is priced at $150–$200 per user per month, all-in for the managed service itself. That range produces three straightforward planning numbers before you add network management, Microsoft 365 licensing, or any project work:

These are planning figures, not quotes. The actual number for your business depends on the assumptions listed below. Read through this article before plugging your headcount into that math.

What Those Numbers Assume

The per-user rate applies when a user is a full participant in the managed environment: a business-hours employee with a company-managed device, a Microsoft 365 account, and a normal range of support needs. The $150–$200 range reflects standard commercial IT work without regulated-industry overlays (healthcare, defense contracting, financial services, and similar verticals carry higher operational requirements and higher pricing).

Specific assumptions built into these examples:

• Single Phoenix-area location.
• No specialized compliance tier (HIPAA, CMMC, or GLBA).
• All users are full users, not reduced-footprint frontline workers.
• No Microsoft 365 licensing cost is included. Licensing is billed separately on Microsoft's terms.
• No network management is included. That is always a separate line item (more on this below).
• No one-time project work, hardware purchases, or migrations are included.

If any of those assumptions don't describe your business, your number will land somewhere other than the table above. The sections below explain exactly what moves the cost up or down.

What Standard Managed Services Actually Covers

The per-user rate is not a product bundle or a tool count. It reflects the operational responsibilities Onsite Technical Services carries on your behalf every month. Those responsibilities fall into two broad areas:

Microsoft 365 Cloud Security and Administration. This covers configuration, policy enforcement, security-baseline review, monitoring oversight, and identity governance for your Microsoft 365 environment. Microsoft keeps the platform running. OTS secures and administers what is inside it.

Managed Security and Support. This covers business-hours helpdesk for end users, plus 24/7/365 monitoring and after-hours incident response. The security stack layered into Standard includes endpoint detection and response, managed detection and response with live analyst coverage, security information and event management with one year of log retention, identity threat detection and response, advanced email protection, endpoint patching, full-disk encryption, malware and web content filtering, antivirus, and computer and Microsoft 365 backup.

Periodic Business Technology Reviews (BTRs) are included in Standard Managed Services. These are not a separate engagement or add-on billing item. They are part of the recurring scope, conducted at least annually, and are the mechanism through which your technology roadmap, security posture, and business priorities stay aligned over time.

One thing Standard does not include: network management. Firewall, switches, and wireless access points are always a separate line item, regardless of how the rest of your environment is structured.

The First Add-On to Budget: Network Management

Every Phoenix business running a physical office has a network: a firewall, at least one switch, and likely wireless access points. Managing that network, including monitoring, patching, configuration, and incident response at the network layer, is not folded into the per-user rate. It is scoped and billed separately, and the cost depends primarily on two things: who owns the hardware, and whether your compliance situation requires a Security Information and Event Management (SIEM) component at the network level.

These ranges scale with network size and complexity. A 5-user office with a single firewall and one wireless access point sits at the lower end. A 25-user office with multiple switches, a segmented network, and guest wireless sits higher. A second location doubles the network management line.

Practical planning tip: if your current firewall is aging or you are starting fresh, factor in either a hardware purchase or a managed hardware arrangement. The monthly rate above covers ongoing management. Hardware itself is a separate cost.

What Separates Standard from Essentials

Onsite Technical Services also offers an Essentials tier, starting at $100 per billable unit per month. Essentials is a narrower entry-level option, appropriate for businesses with simpler environments and lower operational risk. The core difference is not which security tools appear on a features list. It is how much ongoing operational responsibility OTS assumes.

At the Standard tier, OTS carries full operational responsibility for your security stack, your Microsoft 365 security posture, your endpoint protection, your backup verification, and your monitoring. At the Essentials tier, the scope of that responsibility is intentionally smaller. Some of the work that Standard performs on a recurring, managed basis either moves to the client's plate or simply isn't in scope.

That distinction matters because IT and security work does not disappear when it leaves a managed program. If a responsibility is not included, someone still has to perform it, whether that is your business, a separate contractor, or no one. Gaps in coverage are not hypothetical risks for small Phoenix businesses. They are where breaches, data loss, and compliance problems actually occur.

If Essentials sounds like the right starting point, confirm the scope in writing before signing, so you know exactly which responsibilities belong to OTS and which belong to you.

What Moves Your Number Up

The planning ranges in this article assume a standard commercial environment. The following factors push your actual cost above those ranges:

• Regulated industry. Healthcare practices, defense contractors, and mortgage or financial services firms carry additional compliance requirements that require additional technical controls and documentation. Managed IT for these environments is priced at higher tiers, reflecting the added operational responsibility.
• Multiple locations. Network management is scoped per location. A second Phoenix-area office adds another network management line.
• Servers. A physical or virtual server inside your environment adds complexity to backup, monitoring, and patching. Server infrastructure is typically scoped separately or reflected in the network and infrastructure line.
• Complex Microsoft 365 environments. Non-standard configurations, extensive SharePoint architecture, or hybrid environments with on-premises Active Directory require more ongoing administration time.
• High user turnover. Frequent onboarding and offboarding increases helpdesk and administration workload beyond what is typical for a stable team.
• Older or non-standard hardware. Devices that fall outside a normal lifecycle require more support time and may carry security risk that requires additional controls.

What Moves Your Number Down

Some situations reduce the scope, and therefore the cost:

• Reduced-footprint users. A frontline or limited-role user who needs basic device management but does not have a full Microsoft 365 account or complex support needs may qualify for a reduced billable-unit rate rather than the full per-user rate.
• Client-owned network hardware. If your firewall, switches, and access points are already in place and within their supported lifecycle, the network management line sits at the lower end of the range.
• Simpler environment. A single-location, cloud-only business with no servers, standard hardware, and a stable team tends to land at the lower end of the per-user range.

What Is Never Included in the Per-User Rate

Pricing comparisons between managed IT providers are only meaningful if you are comparing the same scope. The Standard per-user rate covers recurring managed services labor and tooling. It does not cover:

• Microsoft 365 licensing (billed directly on Microsoft's terms).
• Network management (always a separate line item).
• Hardware purchases or replacements.
• One-time projects: migrations, new system deployments, office moves.
• Assessments or compliance documentation engagements.
• Any third-party software licensing beyond what OTS specifically includes in its stack.

A provider quoting a lower per-user number may be quoting a narrower scope. Before comparing two invoices, compare what work is actually included in each one.

Worked Example: A 15-User Phoenix Professional Services Firm

To make these numbers concrete, here is a planning example built around a 15-user professional services business in Phoenix with a single office, client-owned network hardware, and no regulated-industry compliance requirements. This is an illustration, not a quote.

Assumptions: 15 full users, stable team, single Phoenix location, no servers, no compliance overlay, client already owns in-warranty network hardware. Microsoft 365 licensing, any hardware replacements, and future project work are not reflected in this range.

If this same firm had aging network hardware that OTS would need to provide, the network management line moves toward the $150–$400 range, adding roughly $100–$200 per month. If the firm grew to a second location, that network line would duplicate for the second site.

Why Cost Follows Operational Responsibility, Not Tool Count

A common mistake when evaluating managed IT pricing is treating it as a software subscription, where a higher price means more features on a list. Managed IT pricing reflects the operational responsibilities a provider carries, not the number of products in a bundle.

Microsoft 365 keeps your email and files available. It does not configure, monitor, or secure what is inside your environment. Keeping endpoints patched, monitoring for threats at 2 a.m., verifying that backups actually restore, reviewing your Microsoft 365 security posture, and responding when something goes wrong: all of that is recurring work performed by people following documented processes. That work is what the per-user rate pays for.

When you see a lower quote, the right question is not "why is this cheaper?" but "which responsibilities moved off their plate?" If the answer is responsibilities you still need covered, the lower price is not actually lower when you account for the gap.

Frequently Asked Questions

Does the $150–$200 per user rate include Microsoft 365 licenses?

No. Microsoft 365 licensing is always billed separately on Microsoft's terms. The per-user rate covers the managed services labor and security tooling that OTS operates on your behalf, not the underlying Microsoft subscription.

Is network management included in Standard Managed IT Services?

No. Network management covering your firewall, switches, and wireless access points is always a separate line item, regardless of how the rest of your environment is structured. Depending on whether OTS provides the hardware or you own it already, network management runs approximately $50–$400 per month per location.

What is the difference between Essentials and Standard Managed IT?

Essentials starts at $100 per billable unit per month and covers a narrower scope of operational responsibility. Standard Managed Services at $150–$200 per user per month carries full ongoing responsibility for your security stack, Microsoft 365 security posture, endpoint protection, backup, and monitoring. The meaningful difference is not a features checklist — it is how much recurring operational work OTS owns versus what stays on your plate.

My business is in a regulated industry. Do these prices still apply?

Not directly. Healthcare, defense contracting, and financial services environments carry additional compliance requirements that require additional technical controls, documentation, and operational oversight. Those environments are priced at higher tiers. The $150–$200 per user range applies to standard commercial managed IT without a regulated-industry overlay.

How does user count affect my monthly bill if my team changes size?

Managed IT is billed per user, so your invoice adjusts as your team grows or shrinks. Adding employees adds billable users. Offboarding employees removes them. Unusually high turnover can increase helpdesk and administration workload beyond the standard scope, which may be reflected in how the engagement is scoped at renewal.

Are Business Technology Reviews an extra cost on top of Standard?

No. Periodic Business Technology Reviews (BTRs) are included in Standard Managed Services as part of the recurring scope, not billed as a separate engagement. They are the mechanism for keeping your technology roadmap and security posture aligned with where your business is headed.

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