About Excelsior Computer Systems

All your I.T. needs in one place

Excelsior Computer Systems has been in business since 1995 providing hardware, software, IT and accounting support to our customers. ECS can take care of all your technical needs from start to finish. This gives you a "One Stop Shop" for your business' IT support and eliminates the headache of dealing with several companies to complete a project. We have extensive knowledge on Unix, Linux and Windows. We can write custom software for all platforms and devices.

Support You Can Count On

Armor Systems went out of business in 1999. The Armor Premier and Excalibur programs are no longer produced by any manufacturer but Roundtable Software purchased the source code for Advantage in 1999 and RDI purchased the software in 2014 and continues to produce the Advantage Accounting System that was started by Armor Systems. Excelsior will support you in any way we can to help you continue running the older programs.

Our Partners

(ABS) American Business Systems

Creator of the ABS Accounting system


Manufacturer of the Reform VDP Designer

Round Table

Owner of Advantage and Armor Systems