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Client-Server Technology Group (CSTG) is a locally owned and operated business in Omaha, Nebraska. We have been helping our customers with their IT needs since 1996.

Mark Gengenbach is the Founder of Client-Server Technology Group, Inc. (CSTG) and has over 39 years of experience in IT. Mark was born and raised in Nebraska. Mark grew up on the family farm and learned the value of hard work, dedication, and how to be an entrepreneur, just like his father. He is a University of Nebraska Kearney graduate who began his IT career while attending college. He co-founded CSTG in January of 1996.

In the early years, CSTG offered an extensive range of IT products and services. Fast-forward to 2024, CSTG’s service offering has now wholly evolved into a technology success provider for our clients.

Over the past 28 years, we’ve been helping our clients drive IT efficiency and productivity by ensuring that their systems are fast, secure, and reliable. During this time, we’ve worked with our clients to fine-tune the auditing process and align our client’s systems with industry standards and best practices.