About Simon Systems


Incorporated in 1988

Simon Systems is a full service reseller of used IBM Mainframes.
We provide best in class refurbished IBM zEnterprise and IBM Z solutions in the world.
We maintain over
parts in our warehouse

A worldwide leader


From IBM s370 to IBM Z
we are strongly rooted in the IBM Mainframe Server market.

Our highly trained staff is equipped with the knowledge and resources required to provide equipment and support to the IBM Mainframe community at large.
Simon Systems has built its reputation on a strong belief and commitment to the original CDLA Code of Ethics as well as the current ASCDI Code of Ethics.

Ethics, Honesty and Integrity

These are essential components in all of our business interactions. We take pride in our strong work ethic, and our ability to supply the utmost in quality products to all of our customers.

Our reputation under these beliefs, have preceded our name in the industry for over 30 years.


Refurbished and tested IBM features and parts

“Always tested…Always guaranteed”

Our core values along with our experience, dedication to our market, and pride in workmanship is what defines us as a company.  We carry a large inventory of fully tested used Mainframes, features and parts to better serve our customers.


For over 30 years

We have provided thousands of fully tested features and parts to various 3rd party maintenance providers enabling them to meet the critical needs of their customer base as well. If you are an end user, leasing company or dealer, we can provide you with high quality refurbished, tested and certified used IBM Mainframes. Simon Systems can also provide assistance with the disposal of your end-of-life, and off lease mainframes and peripheral devices.

Request a call from a specialist