About Ontech Systems
Ontech Systems, Inc. is a Milwaukee-based IT services provider supporting small and mid-sized businesses across Eastern Wisconsin. Since 2004, we’ve delivered reliable, secure, and personalized IT solutions that help our clients grow with confidence.
Let’s solve your IT challenges—together.


Local, Trusted IT Partner for WI SMBs
Originally founded in Menomonee Falls and now proudly based in Milwaukee, Ontech supports small and mid-sized businesses across Eastern Wisconsin—from Greater Milwaukee to the Fox Valley and beyond.
From network projects and managed services to hourly IT support and hardware licensing, our dedicated account teams take the time to understand your business and build solutions around your goals. We value strong, long-term partnerships—and with a 98% client retention rate, it’s clear our clients value them too.
Here’s What Our Clients Have to Say!
What Sets Us Apart
At Ontech, we strive to provide our clients with clear communication, accommodating support, and a proactive approach. And unlike other companies, we don’t lock you into long-term contracts—if you’re not satisfied, just let us know!
As a small business, you juggle more responsibilities than larger companies. We understand! When technology fails, it’s often outside your expertise. That’s why, alongside IT support, we offer consulting to help you plan and implement the right solutions.