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"We have been working with Don and Trinity Computer Systems for many years, since the company started.

Whether it's needing new equipment sent overnight, a large hardware roll out, warranty or service work, or research on new products and projects, Trinity always comes through and gets the job done!

It's a pleasure to work with the entire staff at Trinity Computer Systems."

Kerry Rook
General Manager
Freedom Data Systems

"I wanted to give a sincere thank you for all the hard work you and your team provided with the purchase and flawless installation for my company’s server environment. The Trinity staff made the transition seamless and the reliability of the server has helped us grow our business without any technical worries.

I consider Trinity Computer Systems an excellent business partner and am looking forward to many years of continued business with you."

Kevin Mallonee
Town Square Lending, LLC
McKinney, TX

"Trinity Computer’s goes above and beyond for its customers. They make themselves available 24/7, and do whatever it takes to get any customers issue, small or large, resolved in a timely manner. The staff is very knowledgeable not only about computer hardware in general but about our company’s products and what our customers’ specific hardware needs are. Our company has worked with Don Harty for over 10 years, and we have nothing but the greatest respect for him and his work ethic. Everyone at Trinity Computer Systems is pleasant, great to work with, and dedicated to the customer’s needs & satisfaction."


Rhetta S. Medart
Purchasing and Warehouse Manager

"John and the guys at Trinity are great! I was extremely pleased with the timely attention to my IT needs and their high level of professionalism. I’ve used several IT firms over the years and Trinity stands out from the rest!"


Mike Woods, CFP®
Vice President
Stocker Woods Financial, Inc.

Denton, TX

"From one business owner to another, Trinity has been incredible. I was in a situation that required immediate attention, they didn't know me, nor did I know them, but they were at my office within a few short hours and addressed my issues. I have a 24 hr answering svc which requires constant maintenance. I can honestly say you will pleased with each and every contact and support you receive. They are the best!!"



Donna Shaver, COO
McKinney Answering Service