Our Story. Your Future.

Founded in 2001, Accellis has grown to 40 fulltime employees primarily through word of mouth and referrals. With legendary service, the best tools and education, and 25+ industry awards including Best Tech Services Company, we have a proven formula for generating elite IT and IT support outcomes.

We understand at the end of the day you just want to know your investment in IT is making a difference. That’s why we’re here.

Happy Clients

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. 

Anastasia Sagerman

Operations, TriCor Employment Screening, Ltd.

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!

Bob Jorin

Senior IT Support Specialist, City of Milwaukee

It is a real pleasure to work with Accellis and their highly skilled, professional, and friendly staff. They find cost effective technical solutions to our business needs. Their quick response shows their dedication and commitment to help us keep our business operations working smoothly. I highly recommend their technical services.
Victor Reyes

CEO, Carlisle, McNellie, Rini, Kramer & Ulrich Co., LPA

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.

Jay Cusimano

Managing Parter, Kaman & Cusimano, LLC

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.

John Ellis

Partner, Gabriel Partners, LLC

Ready to learn more?

Consider Accellis as a partner. We can customize a solution for your company.