“The staff, especially Jeff, is always courteous, super responsive and very professional. They do not suggest items/services you do not need. That’s saying something these days. I would recommend this team to all my professional acquaintances.”
– Donna Spencer, Patricia Nash Designs

Computer Systems Plus is here for your 

Smart,  Stable, and Secure…That’s IT


The best way that we have found to ensure your Knoxville business is successful, is making sure it’s secure. Losing data, breaches, downtime…there’s nothing more harmful to any kind of business than simply that


You’re not the IT guy, yet, here you are. Trying to solve problems you don’t have the answers to, while ignoring the areas of your business that need your expertise. Let us help


Have too many things to think about and don’t even know where to start? That’s what we’re here for. Give us your list and we’ll pick up the slack


Downtime typically occurs because there are no systems in place just in case of emergency. If you’ve ever lost connection to internet, lost your emails, lost files due to lack of backup or had a security scare…you understand that any downtime is too much


When a business has less downtime, they become increasingly successful, leaving more time to answer valuable calls, close deals and stay in communication with your team


Our team comes with 200+ years of experience in computer networking + information technology. We love helping Knoxville and the surrounding areas


We pride ourselves on a quick response time for our contract customers. You will not be waiting around for days needing help. Small businesses have our full attention.

Knoxville Small Business Focused

Dave Glass (left) started Computer Systems Plus 36 years ago. His son, Rob Glass (right) is now running the company as CEO and is looking forward to growing and scaling CSP in the coming years. As business owners ourselves, we know the value of Knoxville IT Services for Small Business, and we’re committed to helping you.

Client Testimonials

Dedication + Loyalty

Many of our customers have stuck by our side for 15+ years. We value our customer’s loyalty to us and return the favor with dedicating our time, effort and quality customer service back to them as their top choice in Knoxville IT Services for Small Business.

Don’t take our word for it – here’s what our clients say:

Computer Systems Plus is very responsive to our needs and quick to accommodate solutions for our problems

The support and advice that Computer Systems Plus has provided for United Way over the years has always been timely and has allowed our organization to move forward

So glad we decided to go with Computer Systems Plus when we were looking for IT support. Super knowledgeable and very responsive staff

While there are many IT companies in the Knoxville area, the service we have received from Computer Systems Plus doesn’t compare

Mission Statement:

Create smart, stable, and secure IT ecosystems that successfully support the lives and businesses of our clients through education, quality solutions and dedicated loyal service.

Our Team!

Looking for Knoxville IT Services for Small Business? Meet the experts!

Frequently Asked Questions

Why Read Computer Systems Plus Testimonials? 

For your convenience, we’ve taken testimonials and reviews from real clients so you can see exactly what our IT Support and Services adds to your company! 

What Can Computer Systems Plus Do for Your Business? 

Create smart, stable, and secure IT ecosystems that successfully support the lives and businesses of our clients through education, quality solutions and dedicated loyal service.

See What REAL Customers Have to say… 

“Computer Systems Plus, Knoxville IT Services for Small Business has become a valued business partner for me and the company for which I work.  CSP was recommended to me via a friend and I thank that friend often for the recommendation.  Rob and Amber did a great job answering our questions and showing us what CSP could do for us if we were to partner with them.  They have not disaapointed and have delivered on everything that they said they would do for us.  They did a great job of listening and understanding where our company was currently with our IT needs and then helped me put a plan together to meet our future needs as the company grows and expands.

Then came the hard part.  That was to actually put action to the plan and this is where Jamie came in.  Jamie has been phenomenal to work with and seems to have an answer for everything I throw at him.  He is very responsive, competent and has always been professional to deal with.  I highly recommend CSP Knoxville IT Services for Small Business; give them a try as you will not be disappointed.”

  • James Duncan


“I have known the founders of this company, Dave and Sarah Glass for many years now. You will not find more honest and caring folks. Computer Systems Plus is a representation of their honest business practices and good nature. I have also gotten to know customer care and marketing representative Amber Martinez, who is very knowledgeable and helpful. This company will without a doubt take care of you and provide the best service around!”

  • Charles Pratt


Great customer service with an incredibly knowledgeable IT group. They are responsive and have 

taken care of us for years! I would highly recommend them! 

  • Shirley Sinclair


He is always ready to answer any questions and walk me through any problems I have as I am very IT illiterate. Always has an upbeat personality and do not feel like he minds my questions.

  • Jeanette Aytes


In working with Computer Systems Plus and their respective clients for years, I can attest to the personal relationship and attention to detail, the fairness and generosity and the professionalism and proactive nature this group exemplifies.

  • David F


I started working with the Team at Computer Systems Plus back in 2002 as one of their Carrier Providers. As a Provider, I was able to “peek behind the curtain” and see how they operate when the customer isn’t looking. It was true then and it’s still true now, they operate with honesty and integrity, that’s why I’m giving them 5 stars. So if you are looking for a Managed Service Provider you need to call Computer Systems Plus, give Rob and his fine staff a chance to earn your business and you too will be giving them a 5 star rating. Carl W. Ward Director of Channel Development iRis Networks Knoxville, TN

  • Carl Ward


Sarah Glass and the team at Computer Systems Plus are knowledgeable, friendly and responsive Knoxville IT Services for Small Business. I would highly recommend them for any business, big or small! Barbara Hanson (Blystone) Acccounting Manager – ProForms Inc.

  • Barbara Blystone


My company, Sofas & More, has done business with Computer Systems Plus for years. They are excellent at what they do and always provide prompt service whenever we are in need. I’d recommend them for all things IT related.

  • Jeff Bayless


Have been a customer since around 2005. Can’t say enough about these guys. Super helpful and always professional. Computer Systems Plus takes you in a makes you part of their family. Your questions are always answered regardless of how big or small. I would definitely recommend them. Mostly deal with Jeff & Sara..They are super Knoxville IT Services for Small Business.

  • Myra Mayberry


I have worked with Computer Systems Plus for 25+ years. The people there are wonderful to work with. The company is run with integrity which is rare in the world we live in. Their customer service is fantastic. I have always been so impressed with the way this company and their employees conduct themselves. I would recommend them to anyone and I know you would be pleased.

  • Shirley Waller


Computer Systems Plus, Inc., has been our IT Company for many years. We are so thankful for their attention to detail, quick response time and keeping us aware of what could be potential problems. We thank Jeremiah, Jim, Rob and the whole staff for their excellent service! Debbie Elrod Office Manager Kenneth Miller & Associates – Disability Law, A Professional Corporation.

  • Debbie Elrod


The staff, especially Jeff, is always courteous, super responsive and very professional. They do not suggest items/services you do not need. That’s saying something these days. I would recommend this team to all my professional acquaintances.

  • Donna Spencer


Very helpful in helping us source internet/phone providers for Knoxville IT Services for Small Business and reviewing office needs and how to best utilize internet service. Very knowledge and friendly!

  • Kristina Howard


Absolutely the best company around! Have met and talked several times with Brandon. He has always been able to help and answer every question. He always provides the best technical advice, support, and expertise. I would trust Brandon and his company 100%.

  • Zackery Carroll


Super impressed with Computer Systems Plus & their technician Jamie! I wish I had found them sooner. By the time I contacted Computer Systems Plus for Knoxville IT Services for Small Business I had spent two very stressful weeks trying to get our office up and running. We had several computer & network issues preventing us from running daily operations. I spent hours on the phone with several IT companies and software technical support for the programs we use in our office. Nothing was working. I contacted Computer Systems Plus and explained the problems I was having. The very next morning they sent out their technician Jamie. Within minutes he had one problem fixed and was on to the next. He had our office running smoothly in no time. I was very impressed with Jamie and his ability to fix software problems that two weeks of specialized customer support couldn’t fix. I couldn’t believe I had spent the last 2 weeks going in circles and driving myself crazy. It took Jamie only an hour or so to resolve everything. It was so nice to make one call and have someone knowledgeable enough to fix all of our issues while I sat back stress free. He even explained what the problems were and how to avoid them going forward. If you are tired of being put on hold by customer support or dealing with IT companies that don’t understand the urgency to have operational computer systems for your business, this is the company for you. Excellent service, responsive and reasonable pricing. I definitely found my new computer people.

  • Amanda Hamlin