The North Star Difference

North Star’s roots were planted in the Denver Metropolitan Area in 1992 with one goal: Build a trusting relationship with clients through IT innovation, support and solutions.

Owners Darryl Kalli, Brad Miles and Tony Quijano deliver a hands-on approach. Together with a dedicated staff of technicians, office personnel and the sales and marketing team, North Star has decades of experience in network support, cloud management and customer service.

North Star’s proactive — rather than reactive — approach to IT solutions is rooted in a fundamental core pillar: You need to manage your business; let us manage your technology. This approached allows North Star’s clients to increase efficiencies, boost productivity and improve revenues.

Proactive Advantage Support Program

Our first step toward helping clients achieve a worry-free network is our 24/7 Monitoring. Rather than worry if your network is secure and updated, rest easy with our Proactive Advantage Support Program. We provide you with 24/7 monitoring and maintenance for all servers and workstations.

Proactive Advantage Monitoring Service

Our priority is the health of your network. That’s why we require our customers to utilize the Proactive Advantage Monitoring Service.

This customized monitoring service is your network’s early warning system. It will quickly detect, diagnose and resolve performance problems before you knew they existed.

Research has shown the overall cost of network downtime can average 3.6% of annual revenue. Further, nearly 9 in 10 networks have potentially harmful IT problems undetected. Whether it’s weak user-generated passwords, unauthorized downloads or malicious intent, your business may be at risk.

With our Proactive Advantage Support Program, we offer an assessment and comprehensive review of your company’s technology systems and environment. Following this, we will offer recommendations on how to improve your technology to help your business achieve its goals.

When our assessment is complete, the monitoring begins. We will watch your system’s performance all day, every day. An early warning system will quickly detect, diagnose and resolve network performance problems. If necessary, we provide quick and accurate support — remotely or on-site.

While ensuring a smooth operating system and overall network health is our primary goal, we understand problems will arise. Each member of our team has more than a decade of experience in the IT solutions industry. The likelihood of troubleshooting a problem we haven’t seen before us virtually non-existent.

This is why we’ve been Denver’s choice for businesses for nearly three decades. Contact us today and learn how North Star can build a better IT solution for your company.


  • “We’ve been quite happy with North Star’s services and fair pricing. The comfort we experience knowing our computer system is being taken care of and is less likely to go down is invaluable and provides us with a peace of mind. - Mary Stevenson, Deltech, Inc.
  • “One of the things I like most about working with North Star is that I think the people honestly care, not just a smile to make the client feel good. They take our success as part of their success.” - John Cohagen, The Snow Goose Companies
  • “The efficiency and speed they employ in solving problems is greatly appreciated and keeps us from having downtime. If you’re looking for a responsive IT firm that solves your problems, North Star is the company you’re looking for.” - Andrew Iverson, Hamilton Faatz PC
  • “The project finished on time and on budget. There was no problem you couldn’t fix. I am quite satisfied with North Star and would recommend them to anyone looking for a new IT company.” - Chris Zotter, PVC Specialties
  • “When the monitoring service became available, we took advantage. In the few months since we’ve switched, North Star has alerted us to three major issues regarding our backup system, our antivirus, and our drive space. Left unattended, any of these could have brought our business to a standstill.” - Gregory Olivet, Systems Design International, Inc.
  • “North Star’s project management made the transition from our IT support vendor to their IT support services easy.” - Lisa Fogg, Denver Merchandise Mart

Meet the Team

Darryl Kalli, Lead Network Administrator

Darryl joined North Star in 1996 in the service department. He has been working in Information Technology for 20 years, with an emphasis in Microsoft networks and the Microsoft Exchange Server. In 1998 he earned his first Microsoft certification (MCSE). A native of Denver, Colo., he enjoys riding his bike along the plentiful Colorado trails.

Tony Quijano, Lead Network Administrator

Tony joined the North Star team in 2008. He has spent more than 15 years in the IT industry, with extensive experience in supporting networks, telephone system support (VoIP) and Cisco. When not working hard for North Star’s clients, he enjoys spending time in the outdoors and golf.

Bradley Miles, Lead Network Administrator

Brad entered the North Star universe in 1998 following a six-year commitment to the U.S. Navy as a nuclear electrician aboard submarines. Brad’s expertise is in Microsoft networks and Microsoft Exchange Server. He is also certified by Microsoft in the small business server category. A native of central Illinois, he moved to Denver after high school. He enjoys poker, skydiving, and making divots on the golf course.

Renae Ditirro, Dispatch

For more than 14 years, Renae has been on the front lines of North Star’s customer interface. All tech scheduling goes through her office. Renae enjoys working with North Star’s diverse clients. An avid sports fan, you’ll find Renae spending time with her family if she’s not looking after the North Star family.

Frequently Asked Questions

Customer Service FAQs

Do you answer your phones live or do I have to leave a voice mail and wait for a returned call?

Yes, we do our best to answer the phone from 8:00 a.m. to 5:00 p.m. Additionally, we give all clients an emergency after-hours number they may call if a problem arises, including on weekends.

Do you have a guaranteed response time to my calls?

Yes, we promise to have a technician call you back within 2 hours. This is written into every service agreement we give to our clients. It’s our standard operating procedure, and at North Star we pledge to stand with our clients in their time of need.

What if I don’t speak “geek”? Can you explain our situation in a way I’ll understand?

Yes, our technicians are trained to have the ‘heart of a teacher’ and will take time to answer your questions and explain everything in simple terms.

Do you proactively offer new ways to improve my network’s performance, or do you wait until I have a problem to make recommendations?

Yes, we conduct quarterly review meetings with our clients to look for new ways to help improve your operations, lower costs, increase efficiencies and resolve any problems. Our goal is to help our clients be more profitable, efficient and competitive.

Do you provide detailed invoices that clearly explain what I am paying for?

Yes, we provide detailed invoices that show what work was done, why and when. You’ll never have to guess what you’re paying for. We also double-check our invoices for accuracy before they are sent to you.

Network Maintenance FAQs

Do you monitor our network remotely 24/7/365 to help prevent problems?

Yes, for clients who have trusted us to maintain your network, our remote monitoring system watches over your network to identify emerging problems, security issues and other potential liabilities so we can resolve early and keep your company up and running.

Do you provide a weekly report that shows all the updates, security patches, and status of every machine on my network ?

Yes, every week our clients who rely on us for ongoing maintenance receive a detailed report that shows an overall health score of their network and the updates to their antivirus, security settings, patches and other important network checks.

Is it standard procedure for you to provide written, network documentation detailing software licenses, critical passwords, user information, hardware inventory, etc.?

Yes, all clients receive this at no additional cost. We also perform a quarterly update on this material and make sure certain key people from your organization have this information and know how to use it, giving you complete control over your network.

Do you have other technicians on staff who are familiar with my network in case my regular technician goes on vacation or gets sick?

Yes, and since we keep detailed IT documentation (basically a blueprint of your computer network) for every client’s account, any of our technicians can pick up where another one has left off.

Backups and Disaster Recovery FAQs

Do you monitor an offsite and onsite backup, or are should my company rely on outdated tape backups?

We do not recommend to our clients to use tape backups because they are incredibly unreliable. Yes, we make sure all of our clients are informed about their options and have an opportunity to sign up for our affordable managed backup solution.

Do you perform periodical test restores of my backups to make sure the data is not corrupt and could be restored in the event of a disaster?

Yes, we perform regular “fire drills” and perform a test restore from backup for our monthly maintenance clients. This is done to make sure their data can be recovered in the event of an emergency.

Do you recommend backing up my network before performing any type of project or upgrade?

Yes, we do. This is done as a precaution in case a hardware failure or software glitch causes a major problem.

If I were to experience a major disaster, do you have a written plan for how my data could be quickly restored and/or enable me to work from a remote location?

Yes, all clients receive a simple disaster recovery plan for their data and network. We encourage them to do a full disaster recovery plan for their office. For customers who have opted for our online backup solution, access to your data is at your fingertips with an internet connection from wherever you are located.

Technical Expertise and Support FAQs

Do your technicians arrive on time and are they presentable for an office environment?

Yes, our technicians are true professionals that you would be proud to have in your office. They dress in business casual attire and show up on time. If there is any reason either of those standards won’t be met, we always notify the client as soon as possible.

Can you support my unique line of business applications?

Yes, we assist with troubleshooting problems with all business applications. That doesn’t mean we can fix faulty software or compatibility issues – but upon your request, we will be the liaison between you and your vendor to help resolve problems and make these applications work smoothly.

When something goes wrong with my Internet service, phone systems, printers or other IT services, are you able to assist with the problem?

Yes, we will always strive to help a client when they ask. That’s part of the customer-focused solutions we provide.