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Back-to-Business Security: Expert Video Technology & Installation

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Computers Nationwide enables business success through our dedication to serving customers. We offer our managed IT support, unified communications, commercial surveillance, phone systems, and additional technical services to clients throughout Illinois, Indiana, and Wisconsin. View the Computers Nationwide offices in the Greater Chicagoland area, Greater Madison Area, and Greater Milwaukee Area below:

Vernon Hills, IL

1175 Corporate Woods Pkwy
Suite 100
Vernon Hills, IL 60061

Brookfield, WI

200 S. Executive Dr
Suite 101
Brookfield, WI 53005

Madison, WI

811 E. Washington Ave
Madison, WI 53703

Janesville, WI

340 Midland Rd.
Ste 100
Janesville, WI 53546

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Computers Nationwide © 2024

Google Rating

4.7

Computers Nationwide LLC

4.7

JDF IT Department

16:33 06 Jun 23

Jones Dairy Farm has been a customer of CN (and KC before that) for over 20 years.The team has always been helpful and responsive. We have a team assigned to us so there's always someone who's up to speed.We've been a satisfied customer for a long time.

17:53 01 May 23

5/5 stars for the great service Computers Nationwide provides to their customers. The attention to detail and timely responses to any concerns is greatly appreciated 👍

16:02 28 Apr 23

I have worked with Computers Nationwide (CN), previously Kiernan Consulting, for over 25 years. I find the company and employees to be extremely honest and fair. In my experience, in every interaction they have considered my best interests. CN is a reliable company with very knowledgeable and experienced employees. These are few of the reasons why I plan on continuing to be a satisfied customer of CN for the foreseeable future.

20:29 24 Apr 23

We had no clue where to even begin as we explored many safety and security issues for our building. (CN) came to our rescue answering questions, giving us options and patiently walking us through everything we needed. Right down to the training and installation (CN) was the perfect solution for us. I would highly recommend them. Peace of mind that the job was done right!

Mallory Leonard

17:17 24 Apr 23

The customer service we have received has been exceptional, thank you Computers Nationwide!

Jessica Hartranft

13:50 21 Apr 23

Computers Nationwide helped up with a few safety grant projects over the past year, and have been extremely attentive and helpful. Even when things went south with one of their vendors, they helped us continue on and find the right company for our needs. I am happy to be working with them again on a new round of projects. They have always been there to help!

Sebastian Gonzalez

19:02 18 Apr 23

My work with Computers Nationwide has been an excellent experience! Every time I need their support, they are always there to help and provide us with the information we need.Projects are smooth, quotes are easy to understand, and their communication is always solid. Highly recommend.

Ania Jablonowski

19:26 17 Nov 21

Great service!

15:45 21 Sep 21

We have been working with Computers Nationwide on several Projects at 3 locations. They have been informative, attentive, and patient as we work thru our needs. They have made supportive criticisms both to what we need and what they feel we do not. Love working with them!

02:32 31 Aug 21

When we have an issue they are a phone call away and they always solve our problems.

11:52 03 Aug 21

I will admit that my review may be biased because I am employed here. I have been employed with the company for 25 years. I think that says something about a company. I have worked with numerous talented people throughout the years. We have had, and continue to have, a great team of dedicated professionals.CN has developed a reputation for providing great service to our clients. Our support staff genuinely care about our clients and their staff. I continually hear positive feedback from our clients with regards to how nice it is to work with our support team.Our business has changed over the years and admittedly we are not a fit for everyone. We have developed and grown our managed services platform to bring great value to our business clients and develop long lasting relationships with them. We strive to earn their trust and to become their trusted advisors regarding all things IT.If you are in need of good people, who will have your back and take care of your IT needs with the care that they have for their own, then don't hesitate to give us a call.

14:14 10 Jun 21

12:06 29 Apr 21

Very helpful staff. They were able to fix us right up.

Gabriel Vazquez

20:13 14 Apr 21

Great customer service and knowledgeable technicians. Very responsive to customer needs. Excellent service overall.

15:04 01 Apr 21

Computers Nationwide (CN) provides quality service at a good value. CN has well-trained, responsive staff and well-developed partnerships with vendors in various technical fields (i.e. phone, security, cabling, etc.). I feel confident our company is in good hands with CN's IT oversight.

Gabriel Vazquez

18:20 31 Mar 21

17:29 31 Mar 21

Top notch company with outstanding service. Highly recommend

21:56 17 Dec 20

Always friendly service! They get the job done with a smile and are very responsive to our needs and requests. It's a great business to work with!

20:29 26 Nov 20

19:00 29 Sep 20

The team at Computers Nationwide is always proactive in thinking of what is best for our company. They offer a broad range of services and their staff is responsive and knowledgeable. I encourage you to contact them to find out for yourself what a great partner they will be.

Amanda McKeller

18:57 31 Aug 20

Dave & Jon at Computers Nationwide have been super helpful from start to finish. I am the owner of Mainstream Boutique in New Lenox and during our build out, Dave always came to us.. We never had to go to his office. First initially to meet us and go over plan options and then he would come periodically to check on progress. Both Dave & Jon stayed in great communication during the install and then showed us how to operate everything after the install was complete. Dave even came onsite one time to help with the POS/software install for Mainstream (which had nothing to do with the work they were providing us). We now have security, phone, & internet all through Computers Nationwide. I highly recommend this company as they do great work and they genuinely care about you and your company.

16:06 28 Aug 20

Computers Nationwide has been a great partner. Currently we use their services for access control and surveillance throughout multiple facilities and could not be more pleased. I would reccomend this company to all. Keep up the great work Jon & Dave !

06:43 18 Aug 20

13:32 14 Aug 20

I have struggled through a computer issue for 7 months before bringing in Computers Nationwide. They quickly identified 3 things to do immediately to help solve the issue. Within two weeks of upgrades and changing out some components the system was stabilized. I would recommend them and wish I had called them sooner.

15:35 24 Jun 20

We have used Computers Nationwide for security cameras and a door lock system. Mike, our sales guy is always helpful and goes out of his way to make sure things get done. The installs have been quick and they have been helpful with the few problems we had.

21:17 22 Jun 20

I have worked with computer Nationwide for over 4 years and highly recommend them to everybody . They are always there when you need them and staff is very very professional . They are also improving and finding new technology and advancement and bringing ideas . Very good people

17:32 22 Jun 20

I have worked with Steve Cepican from Computers Nationwide for over 10 years. I have a large real estate portfolio with tenants who constantly have data/cabling/IT/security needs and Steve never disappoints. They are very responsive, always competitive with pricing, and I have never had a tenant complain about their work. I would highly recommend them to anybody.

18:14 05 Jan 20

Best in the business.

Jonathan Bernstein

18:56 20 Jun 19

I've been using Computers Nationwide for years and would highly recommend them. They are very knowledgeable , prompt and pay attention to my needs. They are very responsive and help me solve any new projects that come up with solutions that have worked well to help me grow my business. 5 stars all day long .

18:46 29 Nov 18

Great people, great response time, and a vast knowledge in the IT world

02:45 07 Aug 18

Very well rounded company that helps in all aspects of Technology: Surveillance, Access Control, Phones, and Data.Very personable family owned company.Hands on and the Leadership is on the day to day activities. Big assett to the Community..

20:26 30 Jan 18

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