As a trusted advisor since 2004, Ontech Systems delivers quality IT solutions. Fostering longstanding relationships with a focus on customer service, we take pride in exceeding expectations. Through our primary service offerings, Ontech can act as your IT department, help with your next IT project and assist with IT vendor management. Since 2004, Ontech has acheived a 98% client retention rate - one of the highest in our industry. We provide IT support and consulting throughout the Greater Milwaukee and Fox Valley communities. Ontech specializes in working with businesses who have 10-250 users. Due to the wide variety of clients we work with, our solutions are flexible and customized to meet your current needs and future growth plans.
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Ontech Systems, Inc. Questions
The Ontech Systems, Inc. annual revenue was $8.9 million in 2026.
Mark Dohnal is the President and Shareholder of Ontech Systems, Inc..
32 people are employed at Ontech Systems, Inc..
Ontech Systems, Inc. is based in Milwaukee, Wisconsin.
The NAICS codes for Ontech Systems, Inc. are [518210, 5182, 518, 51, 54, 541, 51821].
The SIC codes for Ontech Systems, Inc. are [738, 737, 73].
Top Ontech Systems, Inc. Employees
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Mark Dohnal
President and Shareholder at Ontech Systems, Inc.
Milwaukee, WI, US13 -
Mike Piotrowski
Founding Partner at Ontech Systems, Inc.
Milwaukee, WI, US24 -
Jason Anderson
Service Desk Manager at Ontech Systems, Inc.
Waukesha, WI, US33 -
David Miller
Lead Technical Consultant at Ontech Systems, Inc.
Milwaukee, WI, US1 -
Dave Hahne
Account Manager at Ontech Systems, Inc.
Milwaukee, WI, US31 -
Mark Farrow
Senior Technician and Security Lead at Ontech Systems, Inc.
Milwaukee, WI, US45+ -
Scott Nielson
Director of Business Development at Ontech Systems, Inc.
Milwaukee, WI, US1
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