Cornerstone Systems was founded in 1990 by Herb Chittum, a former IBM® manager with more than 40 years of S/390 experience. Cornerstone has been profitable since its inception.
 
We are the fastest growing FLEX-ES® reseller with more than 100 systems installed in just the past year. We have installed more than 800 systems during our history as an IBM Business Partner.
 
Cornerstone is second only to Fundamental Software Inc. in FLEX-ES experience and skills, and second to no one in our commitment to excellence and customer satisfaction. 
 
We have more professionals selling and supporting FLEX-ES based systems than any other IBM Business Partner in North America. In addition, we have chosen to partner with some of the largest IBM Business Partners in Europe and Asia.
 
We are proud to have been selected by IBM to support their Partner World for Developers program with our zDev® and zPad® line of FLEX-ES based solutions.
 
Cornerstone is the only Certified IBM zSeries Business Partner selling FLEX-ES based solutions in all of North America. We qualify for this status by meeting IBM’s criteria for training, service, and support.
 
We have always built our zFrames® with only the finest components, something that is now imitated by others. 
 
Our zFrames are built at our facilities in Stevenson Ranch, CA., Dallas, TX., and Atlanta, GA. We also work with our partners to build them in Europe and Asia. 
 
Only Certified FLEX-ES technicians build our zFrames. These people not only build the systems, but install them as well. They not only identify problems, they fix them. They not only understand the book on FLEX-ES, some helped write it.
 
In addition to the zFrames, Cornerstone Systems provides services and support for a wide range of IBM products and services. As an IBM Business Partner we can work with our customers to meet their specific IT requirements. It means we can recommend the best possible options to our customers and not limit our suggestions to a few products that we happen to sell.