Commercial Open Systems, Inc. (COSI) was formed in 1991 by Mr. Terrence Crane in response to a need he recognized for a different kind of  systems and network engineering services.  One that was based on the Open Source Model.  Bringing the best elements of both engineering and design to solve real world business needs.

COSI has grown steadily over the years, expanding with new leadership and capabilities to become a stable solutions source for small and mid-sized companies throughout the United States.  Now as a part of OPENRSM, Inc.

And as Commercial Open Systems is one of the most experienced Open Source Solutions companies in the United States.  Understanding the secret to our success is simple…  We Spoil Our Customers!

If you want to make the Internet work hard for your Business instead of your business working hard to be on the Internet. You need Commercial Open Systems. 

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