Retainer Support Plans | MStack360

Microsoft 365 Managed Support

Stop Letting Microsoft 365 Issues
Slow Your Business Down.

Your team spends hours on IT problems that should never reach them. Get a certified Microsoft 365 team managing everything every month. Trusted by 500+ businesses across North America, Europe, and the Middle East. Starting from $299/month.

View Plans → Talk to Us First

500+ Clients Served

30-Day Satisfaction Guarantee

English · German · Arabic

Microsoft Certified Specialists

Retainer Plans

Find the Right Plan for Your Team

Select what your team needs and choose your team size below. The longer you commit, the more value you unlock. Pricing is personalised based on your team size and location.

1 What You Will Get

Flex

Monthly · Flexible support with no long-term commitment

Microsoft 365 admin support including users, licenses, and MFA
SharePoint and Teams foundational support
Weekly Microsoft 365 training session
Email support with responses within 24 hours
Cancel at any time with no penalties

Team Size Commitment	Flex Monthly, no commitment	Most Popular Priority 6-Month, get 1 free month	Best Value Partner Annual, get 2 free months
Up to 10 users 10 hrs per month	10 hrs per month Response within 24 hrs Get a Quote	10 hrs per month Response within 8 hrs Get a Quote	10 hrs per month Response within 4 hrs Get a Quote
11 to 25 users 20 hrs per month	20 hrs per month Response within 24 hrs Get a Quote	20 hrs per month Response within 8 hrs Get a Quote	20 hrs per month Response within 4 hrs Get a Quote
26 to 50 users 35 hrs per month	35 hrs per month Response within 24 hrs Get a Quote	35 hrs per month Response within 8 hrs Get a Quote	35 hrs per month Response within 4 hrs Get a Quote
50+ users Custom hours	Enterprise and large teams We will build a fully custom plan around your team structure, tools, and goals. Contact Us for an Enterprise Quote

How We Compare to Your Other Options

Before you decide, see how a retainer with MStack360 stacks up against the alternatives most businesses consider.

Feature	Best Value MStack360 Retainer Plan	Other MSP General IT Provider	Full-time Employee In-house Hire	Freelancer Part-time / Project
Monthly cost	From $299/mo	$1,500–$4,000/mo	$6,500–$8,000/mo	Unpredictable
Microsoft 365 specialisation
Certified specialists
Response time	4–24 hrs guaranteed	24–72 hrs typical		No SLA
Scales with your team
Weekly training sessions
Monthly health reports
No hiring overhead
Contract flexibility	Month-to-month available	12-month minimum	Employment contract	Per project
Multi-language support	EN · DE · AR	Usually English only
Ex-Microsoft expertise
Dedicated point of contact

Showing MStack360 vs Other MSP. View the full comparison on a larger screen.

Average full-time Microsoft 365 admin salary: $75,000–$95,000 per year. Source: Glassdoor, LinkedIn Salary, 2025. Does not include benefits, payroll taxes, or recruitment costs.

The Process

Up and Running in 24 Hours

From first conversation to active support in three simple steps. No lengthy onboarding, no disruption to your team.

Free Consultation

We review your Microsoft 365 environment together, identify your biggest pain points, and recommend the right plan for your team size and goals.

30 minutes

Fast Onboarding

We get secure access to your environment, run a full health assessment, and brief your dedicated specialist on your team structure and priorities.

Within 24 hours

Ongoing Support Starts

Your team submits requests, attends weekly training sessions, and receives monthly reports. We manage, monitor, and continuously improve your M365 environment.

Every month

What You Get

Your Microsoft 365 environment, fully managed and always optimised.

From day-to-day admin to security hardening and automation, your retainer puts a certified Microsoft 365 team in your corner every single month.

500+

Businesses Supported

100%

Satisfaction Guarantee

Languages Supported

Microsoft Certified Ex-Microsoft Team Remote-First Global Coverage

Security and Compliance

MFA, Conditional Access, DKIM, DMARC, Secure Score hardening, and rapid phishing response. Your environment is protected before threats become problems.

MFAConditional AccessDKIM / DMARCPhishing Response

User and License Management

Onboarding, offboarding, license assignment, group policies, shared mailboxes, and distribution lists. Handled cleanly so your IT directory stays accurate.

User LifecycleLicense OptimisationGroup Policies

SharePoint and OneDrive

Intranet design, permission management, sync issue resolution, and document library structure. Your team gets a collaboration space that actually works.

Intranet DesignPermissionsSync FixesDocument Libraries

Microsoft Teams and Communication

Channels, meeting policies, Teams Phone configuration, and external collaboration setup. Your team communicates without friction, no matter where they are.

Teams SetupTeams PhoneMeeting Policies

Power Platform Automation

Custom Power Automate flows and Power Apps that cut manual work and save your team hours every week. Automation built around how your business actually operates.

Power AutomatePower AppsWorkflow Design

Reporting and Strategic Insights

Monthly health check reports, Secure Score summaries, and usage analytics. Your leadership gets clear, actionable visibility into your Microsoft 365 environment every month.

Health ReportsSecure ScoreUsage Analytics

Weekly Microsoft 365 Training

Practical weekly sessions that upskill your team on the tools they use every day. Better adoption means better productivity and fewer support requests over time.

Live SessionsPractical SkillsBetter Adoption

Client Reviews

Trusted by Businesses Across Three Continents

Real Google reviews from clients across North America, Europe, and the Middle East.

5.0

500+ reviews across platforms

Google · LinkedIn · Clutch

Carlton

Has helped with several solutions, full Power Apps and Power Automate.

Luke

My firm had the pleasure of working with Ahmed Masoud and his team at MStack360, and the experience has been outstanding from start to finish. Their expertise in Microsoft 365 has been a game-changer for our organization.

Paula

I was referred to Ahmed and his company to assist with IT problems I was having. He and his team have made something I really struggle with seamless and easy. Everything has been consolidated into one place with ease by the team. Highly recommended.

Maxlevel

Omar and Ahmed did great work with our Microsoft Migration. 10/10, would recommend.

View More Google Reviews

FAQ

Your Questions Answered

MStack360 serves businesses across North America, Europe, Australia, and the Middle East. We operate fully remotely and deliver all services in English, German, and Arabic, so wherever your team is based, we are ready to support you.

A retainer gives your business a dedicated Microsoft 365 team on a fixed monthly fee. Rather than paying per ticket or per hour, you get ongoing expert support, proactive management, and continuous improvements every month. Think of it as your own in-house IT department without the overhead of hiring full-time staff.

If you are not satisfied with the quality of our work within the first 30 days of your plan, we will work to resolve every concern at no additional cost. If the issue cannot be resolved to your satisfaction, we will refund your first month in full. No complicated process, no disputes. We stand behind the quality of everything we deliver.

We accept wire transfer, card payments, and PayPal. All options are available at checkout and our team is happy to guide you through the payment process if needed.

Yes, absolutely. MStack360 is a fully registered and officially recognized business. You can engage with us with complete confidence knowing you are working with a legitimate, accountable company that stands behind every service it delivers.

Security is at the core of everything we do. Several of our specialists are former Microsoft employees, bringing deep platform expertise and enterprise-grade security knowledge directly to your environment. We hold over 500 five-star reviews across Google, LinkedIn, and Clutch.

LinkedIn Google Reviews

When you choose the 6-month plan, you pay for 6 months and receive 7 full months of service. On the annual plan, you pay for 12 months and enjoy 14 months of complete support. Your bonus months are automatically applied at the end of your subscription period.

We proactively notify you when you are approaching your monthly limit and present clear options. You can upgrade to a higher tier or add additional hours at a preferential client rate. Your business will never be left without coverage.

Yes, you can upgrade from the Monthly plan to the 6-Month or Annual plan at any time. We will apply a prorated adjustment and your bonus months will take effect from the start of your new term.

Ready to Elevate Your Microsoft 365 Experience?

Book a free 30-minute consultation and we will recommend the right plan for your team, your goals, and your budget.

Book Your Free Consultation Contact Us

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Stop Letting Microsoft 365 IssuesSlow Your Business Down.