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Sentinel Technologies Overview

Downers Grove, IL
201 to 500 employees
Company - Private
Information Technology
Unknown / Non-Applicable
Sentinel understands the role of technology in business and the value of reliable IT solutions for complex and mission critical operations. Vastly skilled teams excel in assessing, designing, deploying, and supporting customized solutions in three core areas: Collaboration ... Read more

Mission: As an independent technology company, Sentinel stands for integrated, customized IT solutions. Our business first, technology second methodology is a unique approach that helps our customers drive sales, propel business performance, and improve operational efficiency.

Company Updates

  • Our Michigan Support Services Manager shares why she believes "our core values are the number one contributor to our success." Read her full blog:

    Sentinel - Blog: Sentinel's Culture and Core Values

    A key characteristic that many individuals look for when seeking employment or to contract services is a company that has core values and a culture that matches their own personal values and goals. Having worked here for six years, I can certainly say that Sentinel Technologies has more than lived up to my expectations. I also believe that our core values are the number one contributor to our success.

  • Downers Grove kicked off Employee Appreciation Month with a night at the Kane County Cougars ballgame with their families, while Lansing kicked off their month with an afternoon at the Lugnuts game!

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Sentinel Technologies – Why Work For Us?

At Sentinel we’ve always taken the lead. Since 1982, Sentinel Technologies has been recognized as a premier business technology services provider dedicated to delivering the highest quality IT solutions, customer service and support.

Even as our services have spanned generations of technology, Sentinel has stayed at the forefront of IT developments and maintained a singular focus on providing practical and innovative solutions. With single-source accountability, Sentinel processes and teams can efficiently address a range of IT needs – from communications, to data center, to cloud and managed services. Our proven success has allowed us to expand from our original charter of providing technology maintenance services to our current standing as one of the leading IT services and solutions provider in the U.S.

By aligning with many of today’s global technology leaders including Cisco, Microsoft, EMC, NetApp and VMware, Sentinel solutions achieve tangible results. Sentinel services our customers both nationally and internationally through offices in: Downers Grove, Chicago, and Springfield IL; Phoenix, AZ; Ann Arbor, Grand Rapids and Lansing, MI; and Wauwatosa and Madison, WI; Denver, CO; Atlanta, GA.

Who we are...

Our growth has brought us from a two-person company offering technology maintenance to our current standing, as one of the leading IT services and solutions providers in the U.S. Our customers range from Fortune 500 to dynamic growth firms that value the benefits of sound technology-based solutions.

We provide our customers with the complete solution: Vision, design, product, implementation, documentation, and support.

To reach this level of commitment, we've built strong industry relationships. Sentinel is aligned with many of today’s global technology leaders including Cisco, Microsoft, EMC, and VMware. We have even been recognized for excellence on the VAR 500 for the past several years.

People are our business...

We are first and foremost a service company, and that means our business focuses on people like you. Extraordinary thinkers. Entrepreneurial spirited. Motivated to accelerate.

Diversity Enhances Performance and Creativity, as well as our Communities and Lives

Why are people our number-one priority? We provide a product that comes directly from extraordinary minds. Sentinel recognizes that those minds are found in people with diverse qualities and backgrounds. We believe that diversity is the key to our firm's success in achieving our goals.

For that reason, Sentinel provides people an equal voice and an equal opportunity for employment and advancement. Some of the differences we value include race, gender, age, ethnicity, color, national origin, religion, disability, and marital or family status.

To us diversity is a long-term investment in our people and their communities. That is why we are an equal opportunity affirmative action employer.

Our commitment doesn't end there...

We are committed to you. We support professional and personal growth and will empower you to exceed your expectations, consecutively recognized by Chicago Tribune in the top 10 "Top 100 Work Places". We invest in technical training and provide you hands-on experience. Our people achieve the highest level of industry certification. This commitment has resulted in unique opportunities for our employees to expand their interests and realize their potential.


A World of Opportunity

Sentinel offers a wide variety of employment opportunities for individuals looking to begin their careers or extend their established professional experience. Exciting career opportunities can be found in the following categories:

Communication Technologies

As a Business Communication Analyst you will have the opportunity to work on leading technology implementations in the areas of unified communications, collaboration, wireless, audio and video conferencing, digital signage and video surveillance.

Data Center Technologies

As a Network Analyst you will have the opportunity to work on leading technology implementations in the areas of data storage, replication, back-up and recovery; server and network virtualization; network route & switch, email and web security.

Application Development Solutions

As an Application Analyst you will have the opportunity to work on leading technology implementations in the areas of web development, database development, e-commerce, system integration development, call center development and reporting solutions.

Service Support Solutions

As a Support Technician (Customer Engineer/Field Technician, Technical Support Engineer, Bench Repair Technician) you will have the opportunity to troubleshoot and repair system issues, monitor system performance and proactively address potential situations.

Internal Operations Support

Solutions Architect, Project Manager, Sales Executive, Human Resources/Recruiting, Accounting, Purchasing, Customer Service, Administrative Assistant, Inventory/Shipping Clerk

 Locations Across the United States:

Downers Grove, IL; Chicago, IL; Springfield, IL; Ann Arbor, MI; Grand Rapids, MI; Lansing, MI; Crystal Falls, MI; Milwaukee, WI; Phoenix, AZ; Denver, CO; Atlanta, GA


Sentinel is proud to be recognized within our industry as a leader in the field, and by third party organizations as a top-tier workplace.

We are also proud to partner with true innovators in the industry that allow us to create the most effective and cutting-edge solutions. 

In addition to our core partners, Sentinel possesses partnerships/technical experience with many other technology providers including those listed below:

As a Cisco Gold Partner, we are also proud to be recognized for expertise in the following areas:

Each member of our team has a unique story. They convey the true essence of Sentinel better than we could ever try to write it, so we asked them to share their stories, journeys and other information they thought would be important to truly understanding what Sentinel Technologies is all about.

Kelly discusses her 20+ year career with Sentinel--moving from the Parts Window to her current position as Advanced Regional Territory Coordinator:


Chris, a Sentinel Sales Associate, discusses what makes Sentinel different:

Sentinel Technologies Reviews

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Dennis Hoelzer
51 Ratings
  • Featured Review

    Helpful (7)

    "Finally Found a Home"

    • Work/Life Balance
    • Culture & Values
    • Career Opportunities
    • Comp & Benefits
    • Senior Management
    Current Employee - Sales Executive
    Current Employee - Sales Executive
    Positive Outlook
    Approves of CEO

    I have been working at Sentinel Technologies full-time (More than a year)


    From the time I started to now, I have felt nothing but welcomed and appreciated. I have finally found a company with integrity, a family feel, and the support I have been looking for since I graduated college. I look at my manager as a Mentor and feel like I can go to anyone, even Executive level, for the tools I need for success. After just one year, Sentinel not only told me how much I was appreciated, but acted on it by promoting me to the next level. I can see a path here and want to call this place home for a long time.

    • Potential to grow
    • Management provides tools for success
    • Family oriented
    • Great teamwork
    • Appreciation for hard work
    • Always looking to grow and become better as a company


    I think that an initial training class and manual explaining the internal processes would be very helpful. For most, it is easiest and most effective to learn from experience, especially since they are coming from a sales background. However, for some, it would ease some of the nerves in the beginning if they had a reference available to look back on, especially when going through the processes for the first time.

    Advice to Management

    Never stop listening to suggestions and keep up the good work!

See All 77 Reviews

Sentinel Technologies Photos

Sentinel Technologies photo of: Our Business Solution Center allows us to provide demonstrations of solutions we offer & provide a test lab environment for customers to do proof of concept testing with their own data.
Sentinel Technologies photo of: In honor of our 34th Anniversary, team members reflect on their time at Sentinel
Sentinel Technologies photo of: This was the inaugural Employee Appreciation BBQ on the new deck in Downers Grove!
Sentinel Technologies photo of: The Lansing team celebrates Employee Appreciation Month at a local restaurant!
Sentinel Technologies photo of: Delicious food grilled by our Operations team for the Employee Appreciation BBQ!
Sentinel Technologies photo of: Beautiful day at the Downers Grove Employee Appreciation BBQ!
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Sentinel Technologies Interviews



Getting an Interview

Getting an Interview




  1. Helpful (5)  

    Project Manager Interview

    Anonymous Employee
    Accepted Offer
    Positive Experience
    Easy Interview


    I applied through a recruiter. The process took 2 weeks. I interviewed at Sentinel Technologies.


    The whole process took about two weeks. In those two weeks I had three interviews. (Initial phone screening, in-person interview with three managers, follow-up phone interview with another manager) The offer letter was sent about a week after the last interview.

    The interview was pretty simple. A lot of previous experience and behavioral questions.

    Interview Questions

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Sentinel Technologies Awards & Accolades

  • Top Workplaces -- Midsize, Chicago Tribune, 2016
  • CareerBuilder Top Companies to Work for in Arizona, AZ Central, 2016
  • 2016 Solution Provider 500 list, CRN, 2016
  • CRN 2016 Tech Elite 250 List, CRN, 2016
  • US Public Sector – SLED Education Partner of the Year, CISCO, 2016
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