Managed IT Services & IT Support for Prescott, Phoenix, Scottsdale, and Glendale Businesses

Theo Soumilas
CEO/President
How Secure is Your Password?
4 Reasons to Choose Northern Arizona IT to Support Your Computer Network

We Respond Within 5 Minutes Or Less.
The average amount of time it takes for one of our clients to get on the phone with a technician who can start working on resolving their problem is 3.5 minutes. We know you're busy and have made a sincere commitment to making sure your computer problems get fixed FAST. And since most repairs can be done remotely using our secure management tools, you don't have to wait around for a technician to show up.
100% No-Small-Print Satisfaction Guarantee.
Quite simply, if you are not happy with our work, we'll do whatever it takes to make it right to YOUR standards without charging you for it. And if we can't make it right, the service is free.
No Geek-Speak.
You deserve to get answers to your questions in PLAIN ENGLISH, not in confusing technical terms. Our technicians will also not talk down to you or make you feel stupid because you don't understand how all this "technology" works. That's our job!
Peace Of Mind.
Because we monitor all of our clients' networks 24/7/365, you never have to worry that a virus has spread, a hacker has broken in or a backup has failed to perform. We watch over your entire network, taking the management and hassle of maintaining it off your hands. This frees you to focus on your customers and running your business, not on your IT systems, security and backups.
We Respond Within 5 Minutes Or Less.
The average amount of time it takes for one of our clients to get on the phone with a technician who can start working on resolving their problem is 3.5 minutes. We know you're busy and have made a sincere commitment to making sure your computer problems get fixed FAST. And since most repairs can be done remotely using our secure management tools, you don't have to wait around for a technician to show up.
No Geek-Speak.
You deserve to get answers to your questions in PLAIN ENGLISH, not in confusing technical terms. Our technicians will also not talk down to you or make you feel stupid because you don't understand how all this "technology" works. That's our job!
100% No-Small-Print Satisfaction Guarantee.
Quite simply, if you are not happy with our work, we'll do whatever it takes to make it right to YOUR standards without charging you for it. And if we can't make it right, the service is free.
Peace Of Mind.
Because we monitor all of our clients' networks 24/7/365, you never have to worry that a virus has spread, a hacker has broken in or a backup has failed to perform. We watch over your entire network, taking the management and hassle of maintaining it off your hands. This frees you to focus on your customers and running your business, not on your IT systems, security and backups.
IT Services We Offer

Data Backup & Recovery
From accidental deletes to wildfires, data loss can cripple operations. We encrypt backups locally and in the cloud, run daily verifications, and offer one-click restores so you’re back online fast.

Cybersecurity
Phishing kits, ransomware, zero-days—threats evolve daily. We deploy multilayer defense, real-time SOC alerting, and rapid incident response, shielding your data and keeping auditors happy.

Managed IT Solutions
Stop wasting hours on glitchy tech.
Our fully-managed IT keeps Prescott businesses running with 24 × 7 monitoring, instant help-desk, automated patching, and hardware lifecycle planning—all wrapped into one predictable monthly plan.

VoIP
Services
Trade expensive copper lines for crystal-clear cloud voice. Our VoIP platform delivers HD calls, video meetings, call recording, and mobile apps—letting your team connect anywhere without dropped conversations.

Website
Design
First impressions matter. We craft responsive, SEO-ready sites that load fast, showcase your brand, and convert visitors into customers—then keep them updated so you can focus on business, not code.
A Message from Our CEO:
Maybe you’re concerned with the current rising costs of your IT services, or maybe you are just running short on time because of your expanding business and need to hand over the reins of some services to someone else. Whatever your reason, we can help you with quality IT services today.
Your business can save money and time today with Northern Arizona IT’s managed services, network solutions, IT support and more. Our custom service packages deliver what you need and want without overstepping the boundaries of your budget. From cloud services to data backup, we’re here to team up with you and your company for expert support.
So, if your company is in Phoenix, Scottsdale, Prescott, and Glendale, Northern Arizona IT can help you today.
Theo Soumilas
- See what other business owners are saying about us…
EXCELLENT Based on 22 reviews Willbuilt SG2020-12-15Trustindex verifies that the original source of the review is Google. So happy we found Theo! He has handled our system upgrades effortlessly, and resolved miscellaneous issues making life here at Willbuilt Seamless Gutters so much easier. He's very professional and responsive, and we have no worries now that he is monitoring our data. I would recommend him to any business that needs someone they can trust! Andrew Diener2020-12-04Trustindex verifies that the original source of the review is Google. Northern Arizona IT is the best around. Great, personalized service. Easy to talk to. Responsive and affordable! T Johnston2020-03-25Trustindex verifies that the original source of the review is Google. Outstanding service! I would highly recommend Northern Arizona IT. Simon C2020-03-12Trustindex verifies that the original source of the review is Google. We've partnered with Northern Arizona IT on a number of projects and have had a fantastic experience working with them. Clarke Carroll2019-12-18Trustindex verifies that the original source of the review is Google. Northern AZ IT came in and helped us integrate our phone and EHR system to run seamlessly. Thank you, you are terrific!! Joseph Furlan2019-08-28Trustindex verifies that the original source of the review is Google. My network went down suddenly at my Hair Salon. Me and my stylists were booked solid. After spending 45 minutes I didn't have talking to the cable guys I was desperate. No internet, no check out ability, no music, no vibe... I was in trouble. A client in my chair told me to call NAIT. I got right to Theo who runs the deal. He was in PV but told me he would head my way as soon as he could. 30 minutes later he was here. 30 minutes after that, not only was my network back up but my Sonos sound system that I'd never got to fully function properly was firing on all 4 speakers. AMAZING!! Fast, friendly, reasonably priced. I wish the whole world worked as smooth as my experience with Northern Arizona IT. I now have my personal tech guys. Way to go Theo! Twilla Jones2018-07-02Trustindex verifies that the original source of the review is Google. The best computer service we have ever had. Knowledgeable, polite, returns phone calls promptly. Matt Turner2018-05-23Trustindex verifies that the original source of the review is Google. My computer was taking 20 - 30 min to boot up and general operations had slowed significantly. Theo fixed it! cleaned it up and now it runs great. Thought I was going to have buy a new one. And Theo is local! I had these people calling all the time saying they were with Microsoft trying to get to pay for some computer work that i had never met and could not find them on the web... Thanks Theo! David Sanchez2018-04-29Trustindex verifies that the original source of the review is Google. Northern Arizona IT has been a life saver for me! They handled an IT nightmare by quickly solving my IT issue, and got my business back into action! They have the best service and reasonable prices too. I've never had such great communication and service from IT professionals before. Raf King2018-04-25Trustindex verifies that the original source of the review is Google. Where's the 10 star button?! I loved my experience with Theo from NAIT. Very thorough, knowledgeable, and had the chillest attitude. He was really conscious of the fact that my computer is my livelihood and was very reassuring through the whole process. He totally went out of his way to make sure I was taken care of. Didn't try to get me to spend more money than I had to. Even made sure I knew about his warranty policy in case there was some kind is mishap. I'm new to Prescott and am still figuring the area out, but I definitely found my new computer guy!Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Thank you for the help you give us. I know so often it is very trivial fixes that we are asking for, but it saves us from digging around and wasting valuable “company time” to solve the issue. We just aren’t as good at it as NAIT. Best of all, you do it with such a great attitude, even though you could be doing tons of eye rolling. To all of us you guys are brilliant heroes!
So happy we found Theo! He has handled our system upgrades effortlessly, and resolved miscellaneous issues making life here at Willbuilt Seamless Gutters so much easier. He's very professional and responsive, and we have no worries now that he is monitoring our data. I would recommend him to any business that needs someone they can trust!
About Northern Arizona IT
Northern Arizona IT (NAIT) launched in Prescott in 2016 to bring enterprise-level IT support to local Arizona businesses—without the “band-aid” fixes or runaround. Today, the company is led by Theo Soumilas, a longtime IT expert whose career spans everything from hands-on hardware repair to directing national IT operations for major healthcare and enterprise firms.
From day one, NAIT has believed that every support ticket deserves a quick, plain-English answer—and that preventing problems is far better than scrambling after they hit. That proactive mindset still drives our team today.
Based in Prescott, our certified engineers support organizations across Phoenix, Scottsdale, Glendale, and Northern Arizona. We monitor infrastructure 24 × 7, fortify defenses against cyber threats, and execute seamless cloud migrations—so your staff can stay focused on customers, not IT headaches.
Through our Managed IT Services, clients receive flat-rate support, real-time threat detection, bulletproof backups, and growth-ready tech roadmaps. Combine that with responsive engineers who talk like real people, and it’s easy to see why Arizona businesses trust NAIT to keep their systems secure, stable, and running strong.