Select your perfect managed services business solution.
Interested in boosting your existing team? Need to outsource it all? Start finding the perfect fit below.
I'm a security leader:
I need a partner to help build and then watch my security infrastructure.
I'm a business leader:
I need someone to take care of all or part of my firm’s technology.
I'm a tech leader
I need to raise the maturity of my current IT infrastructure.
The benefits of a hybrid provider.
Showcasing the benefits of managed IT and security all-in-one, Accellis can both lower your risk while boosting your return on investment.
Managed IT
Full Management
Co Management
Staff Augmentation
Global Support Desk
IT Operational Maturity Level
ITSM / ITOM Analytics
vCISO
vCIO
Cybersecurity
Identity Security
Device Security
Data Security
Backup & DR
SOC + XDR + EDR
Risk & Security Assessments
Policies & Training
Hardening & Analytics
Microsoft Cloud
Microsoft Azure IaaS/PaaS
Microsoft 365 & Office 365
Intune / Azure AD
Windows Auto Pilot
Windows 365
Power Platform
Dynamics 365
Artificial Intelligence
Managed IT
Full Management
Co Management
Staff Augmentation
IT Operational Maturity Level
Global Support Desk
ITSM / ITOM Analytics
vCISO
vCIO
Cybersecurity
Identity Security
Device Security
Data Security
Risk & Security Assessments
SOC + XDR + EDR
Hardening & Analytics
Policies & Training
Backup & DR
Microsoft Cloud
Microsoft Azure IaaS/PaaS
Microsoft 365 & Office 365
Windows Auto Pilot
Intune / Azure AD
Power Platform
Windows 365
Artificial Intelligence
Dynamics 365

Who We Are
Scalable, flexible, secure solutions.
We offer a comprehensive variety of managed IT services, cybersecurity, and cloud computing solutions to help give businesses a competitive, intelligent edge. Whether you need fully outsourced IT, help for your internal team, Managed Security, deployment of Microsoft 365 or Microsoft Azure, or implementation of a zero-trust security framework, Accellis’ award-winning team is here to provide the leadership and expertise you need.
%
Fewer IT Issues
%
One-Touch Close Tickets
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%
Reduction in User Setup Costs
%
Reduction in User Compromises
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OUR LEADERS
Authors of the next chapter of your business IT services strategy.

Michael O'Neill
Director of Sales

Joseph S. Marquette
President & Founder

Brandon Bergum
vCIO
Your Technology. Our Expertise.
Pairing data-driven industry-specific inputs, Accellis creates one-of-a-kind service.
Legal Firms
Non-profit & Government
City and county governments nationwide use our key management, cloud, and vCIO services. Accellis engineers public services for high-tech non-profits and governments.
Financial & Insurance
We streamline the operations for dozens of financial and insurance companies nationwide. They keep ahead of the competition while meeting compliance obligations. Powerful, cloud-first, zero-trust IT.
Manufacturing & Retail
We have the staff and tools to help you achieve your next big success, whether you are a 10-person, multi-generational family business or a 20-site grocery chain with 750+ employees.
Trusted Accellis Partners










Client Testimonials
At the heart of our award-winning, IT management trailblazing is a commitment to a fit between our employees and partners and our existing clients. The MSP business is a shared resource model, and the new clients we hire affect employee and client churn in a profound way. So, we only hire great new clients. The result? Our clients get elite results they can’t stop telling others about and we have the lowest employee turnover rate in the industry.
I am writing this letter to thank you for your outstanding work on the Security & Risk Assessment. Your expertise and attention to detail were tremendously valuable. As a result of your work and recommendations, we passed our recent audit with flying colors. Again, I would like to express my sincere thanks for your contributions.
Our project was a tremendous success. The taxpayers of the City of Milwaukee will never be aware of the savings and operational improvements that were achieved on their behalf, and that is exactly how it should be!
We’ve grown to appreciate Accellis not as a typical vendor or service provider, but truly a partner in our practice. I trust them completely. Bottom line for me is that our success can be directly linked to the work Accellis has done.
Information technology is, and likely always will be, an absolutely critical element of our business. We recognized early on that we simply do not have the knowledge, experience, or ability to
manage literally any aspect of our information technology needs. Accellis takes care of it all, which frees us up to do what we’re actually good at.
Your competitive edge.
Always intelligent
We leverage applied AI, machine learning, natural language processing and automation to redefine the meaning of speed to resolution.
Always on
Work from anywhere can mean work at any time. That’s why our platform is designed with a 99.9% SLA on everything. We make sure your IT is working, wherever you are and whenever you need it.
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Real support from real people.
Chat, email, phone, client portal, and onsite support
We support your team how they like it, when they like it, with a sense of urgency. Your time is important. Don’t waste another minute dealing with subpar IT.
Experts in your corner
As Microsoft Gold partners with leading industry certifications in cloud, security, and IT management, we make sure the person you are talking to is as good at their job as you are at yours.
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Are you ready?
Consider Accellis as a managed services partner. We can customize a solution for your company.