About us

About MTSI

Leading US reseller, consultant and trainer for
Sage MAS 90 and Sage MAS 200 for over 20 years

Message from the President

Welcome and thank you for visiting our web site, Marshall Technology Solutions, Inc’s (MTSI) internet home.

From our humble beginnings some 19 years ago in Chicago, MTSI has emerged as one of the nation’s leaders in providing business technology solutions.

Our commitment to excellence by only offering solid business solutions allows our clients to trust us with the technology recommendations we provide for their business. We look forward to servicing your business needs and providing you with the solutions that will help your business reach its most thriving potential.

I hope you find the web site informative and helpful. Please feel free to contact me or my team to find out how MTSI can empower your business with our accounting solutions. To learn more about the history of MTSI, please read The MTSI Road.

Thank you once again for your visit.


David Mak
Phone: 866-848-2957 x112
Email: david@mtsisolutions.com

Corporate Headquarters

Lincolnwood, Illinois

7331 N. Lincoln Ave.
Suite 4
Lincolnwood, IL. 60712
Main Phone: 866-848-2957
Main Fax: 866-491-9545

Southeast Regional Office

Orlando, Florida

7380 Sand Lake Road
Suite 500
Orlando, Florida 32819
Main Phone : 866-848-2957
Main Fax: 866-491-9545

Rocky Mountain Regional Office

Denver, Colorado

7900 East Union Avenue
Suite 110
Denver, Colorado 80237
Main Phone : 866-848-2957
Main Fax: 866-491-9545

Need to talk to one of our agents?

Corporate Headquarter
7331 N. Lincoln Ave.
Suite 4
Lincolnwood, IL. 60712
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