Since 1987 we have been helping clients procure, install, secure and support their computer networks. 


We recommend that organizations with less than 500 users deploy a combination of Fortinet firewalls together with Sophos endpoint protection software.  These systems have overlapping features which can protect against threats targeting specific security vendors.  In addition, each system offers best-in-breed overlapping protection from the scourge of cryptoviruses and ransomware.  Dual-factor authentication for remote users is also strongly recommended.

Let us help secure your network with these products and services:

  • Firewalls and advanced security solutions from Fortinet

  • SIEM systems, secure wireless and SD-WAN systems from Fortinet.

  • Server and endpoint protetion systems from Sophos.

  • Disaster  Recovery as a Service (DRAAS) systems from Unitrends.

  • Penetration testing and security assessments.

  • Post-incident security analysis and 24 x 7 recovery services.

  • End-user Phishing tests.

Michigan's Premiere
Computer Network Security Solutions Provider

Work with the Experts.

Enjoy the Security.

Resolve to make your network more secure in 2021 with turn-key network security solutions from Dominant Systems, Fortinet and Sophos. Call or email today for more info.

How may we help you today?

Tech Support

Learn about and request computer network technical support services.

Network Security

Learn how our network security services can help minimize costly security incidents.

Managed Services

Discover how fixed monthly fee managed services can lower costs and improve security. 

Product Sales

Learn about the products we offer from Fortinet, HPE, HP, Microsoft, Cisco, and others. 

Computer Network & Security Solution Partners 

Corporate & Government Accounts, please call

(734) 971-1210
for expert product selection, quick quotes and great prices.


Contact Us

© 1990-2018 Dominant Systems Corporation and others.  All rights reserved.

Selling, installing and supporting
computer networks since 1987.

For the fastest response, call us anytime at (734) 971-1210

Coverage Areas
Ann Arbor to Detroit to Jackson to Flint and beyond

For local onsite computer network support, we cover an area stretching 100 miles out in any direction from our Ann Arbor offices. This means we can support clients in Ann Arbor, Belleville, Northville, Canton, Chelsea, Dearborn, Detroit, Dexter, Jackson, Livonia, Manchester, Milan, Monroe, Northville, Novi, Plymouth, Redford, Romulus, Saline, Taylor, Wayne, Westland, Wixom and Ypsilanti, including Wayne County and Washtenaw County.

For Internet Security Assessments, we cover the entire USA. 

For remote and telephone support, we can support your satellite offices and remote workers in all 50 states.

Building Secure Computer Networks with World Class Products.

In this day and age, it's impossible to build ​secure computer networks without using products from world-class vendors.  We sell and support security and related products from HPE, Inc., Dell, VMware, Microsoft, Cisco Systems, Fortinet, Unitrends, Acronis and others. To be able to offer "end-to-end" solutions, we are also authorized dealers for desktop and notebook computers from HP, Inc., and Lenovo. See us for expert solutions in the following areas:

  • Network systems consulting & analysis

  • Expert pre-sales support

  • Microsoft Windows server sales & service

  • Microsoft Exchange Server & SQL

  • Linux Servers

  • HPE & Dell servers and storage systems

  • Firewalls & SIEM systems from Fortinet

  • Sophos endpoint protection software

  • Data backup appliances from Unitrends & HPE

  • Acronis data backup systems for SMBs

  • Temperature Scanning Kiosks

  • Nationwide support services through TechSelect

  • Deal registration discounts for qualified clients


Network Solutions Sales and Service