Top 40 Network Security Companies in Illinois
The Best of December 2025Looking for a top network security firm in Illinois?
Network security is critical for businesses. Protecting sensitive data and preserving trust are top priorities. Network security companies offer services like threat detection, encryption, assessments, and incident response planning. By partnering with these experts, businesses can fortify their defenses and maintain their reputation in the face of evolving cyber threats.
To assist you in your search for a partner, we’ve compiled this list of the top network security service providers in Illinois. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Illinois Network Security Providers
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1$5,000+10 - 49 employeesPark Ridge, ILRead More
Founded in 2009, XL.net is an IT managed services company based in Park Ridge, Ill. Their team primarily works with small businesses from the nonprofit, manufacturing, and financial services industries.
Clients
D/C Export & Domestic Packing, Inc.Industries
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2$1,000+10 - 49 employeesCharlotte, NCRead More
SkyView Technology Inc, an IT strategy consulting company, is headquartered in Charlotte, North Carolina; Charleston, South Carolina; Chicago, Illinois and Chicago, Illinois. The small firm was founded in 2002. Their team offers IT strategy consulting, IT managed services, and Cybersecurity.
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3$5,000+10 - 49 employeesChicago, ILRead More
Headquartered in Fishers, Indiana; Chicago, Illinois and Jacksonville, Florida, Reboot, Inc. Is an IT strategy consulting company. The company focuses on IT strategy consulting, cloud consulting & SI, Cybersecurity, and IT managed services and is small.The company was established in 2005.
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4$5,000+2 - 9 employeesPalatine, ILIT managed services company AH Technology, Inc. Is located in Palatine, Illinois. They offer IT managed services and Cybersecurity and were established in 2018.Read More
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5$1,000+2 - 9 employeesChicago, ILRead More
ProdigyTeks, Inc is a small IT firm headquartered in Chicago. Founded in 2013, their main focus lines are IT managed services and IT strategy consulting.
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6$1,000+10 - 49 employeesGlen Ellyn, ILGenuity IT, an IT managed services company, was founded in 2017. Headquartered in Glen Ellyn, Illinois, their small team offers IT managed services, cybersecurity, and IT strategy consulting.Read More
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7$1,000+50 - 249 employeesNaperville, ILBased in Naperville, Illinois and KVR Nagar, India, AMBC Inc is a Conversion Optimization company. The team offers Conversion Optimization and IT strategy consulting.Read More
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8Undisclosed2 - 9 employeesAurora, ILUmbrella Security is a Cybersecurity and Building Security Services company. They are in Aurora, Illinois and have small team. They focus on Cybersecurity and Building Security Services.Read More
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9$5,000+50 - 249 employeesLombard, ILAll Tech Solutions is an IT managed services company. Based in Lombard, Illinois, the team focuses on IT managed services and Cybersecurity.Read More
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10$10,000+50 - 249 employeesChicago, ILTrekShield is a midsize Chicago, Illinois-based Cybersecurity company. The team focuses on Cybersecurity and Blockchain.Read More
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11Undisclosed250 - 999 employeesChicago, ILKeeper Security, a Cybersecurity company, was established in 2011. The company provides Cybersecurity and cloud consulting & SI.Read More
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12Undisclosed10 - 49 employeesDes Plaines, ILSpot Migration Co is a Cybersecurity company. The team offers Cybersecurity and IT managed services and is headquartered in Des Plaines, Illinois.Read More
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13Undisclosed50 - 249 employeesNorthbrook, ILOnward Technologies, Inc. Is a Cybersecurity company. They were founded in 1985, and their services include Cybersecurity and IT managed services.Read More
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14$5,000+10 - 49 employeesSchaumburg, ILEstablished in 1994, Temple-IT is a Cybersecurity company. The team offers Cybersecurity and IT managed services.Read More
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15Undisclosed50 - 249 employeesBolingbrook, ILITRegulators, an IT strategy consulting company, was founded in 2007. The team focuses on IT strategy consulting and cloud consulting & SI.Read More
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16Undisclosed10 - 49 employeesChicago, ILHoplon InfoSec, a Cybersecurity company, was established in 2018. The team provides Cybersecurity and IT managed services.Read More
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17Undisclosed10 - 49 employeesDowners Grove, ILVerity IT is a Downers Grove, Illinois-based Cybersecurity company. They provide Cybersecurity and IT managed services and were established in 2014.Read More
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18$5,000+10 - 49 employeesBurr Ridge, ILThe Isidore Group, an IT managed services company, is located in Burr Ridge, Illinois and Chicago, Illinois. They provide IT managed services and Cybersecurity and were launched in 2014.Read More
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19Undisclosed10 - 49 employeesLockport, ILJK Technology Solutions is a small Cybersecurity and IT managed services company based in Lockport, Illinois and Hoffman Estates, Illinois. The team provides Cybersecurity and IT managed services.Read More
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20$10,000+2 - 9 employeesBatavia, ILFounded in 2007, Zadro Web is a small SEO company. Their team offers Search Engine Optimization, Web Development, IT managed services, and Cybersecurity. The firm is headquartered in Batavia, Illinois.Read More
Clients
Assemblies Unlimited, Inc.Industries
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21Undisclosed10 - 49 employeesHoffman Estates, ILDSN Group - DSN Support is an IT strategy consulting company established in 1994. The company provides IT strategy consulting and Cybersecurity, and is small.Read More
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22Undisclosed2 - 9 employeesEvanston, ILNEBULACLOUD is an other IT consulting and SI company founded in 2014. The agency specializes in other IT consulting and SI and IT managed services.Read More
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23Undisclosed10 - 49 employeesChicago, ILMicro-Tech USA, an IT strategy consulting company, was established in 1989. They focuses on IT strategy consulting and cloud consulting & SI.Read More
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24$1,000+2 - 9 employeesOak Forest, ILFounded in 2024, Revtek IT Solutions, a small IT managed services company, is in Oak Forest, Illinois. Their team focuses on IT managed services and IT strategy consulting.Read More
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25$5,000+10 - 49 employeesLibertyville, ILThinkNChange, a Back Office Outsourcing company, is in Libertyville, Illinois and Kingston, Jamaica. They focus on Back Office Outsourcing and Cybersecurity.Read More
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26Undisclosed10 - 49 employeesChicago, ILUncommonX is a Chicago, Illinois-based Cybersecurity company. Their services include Cybersecurity and IT managed services.Read More
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27Undisclosed50 - 249 employeesJerseyville, ILVerve Industrial, a data analytics company, was established in 1994. The company specializes in BI & big data consulting & SI and Cybersecurity, and is midsize.Read More
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28Undisclosed50 - 249 employeesChicago, ILCyberMaxx is a big data company. Located in Chicago, Illinois, their team offers BI & big data consulting & SI and Cybersecurity.Read More
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29Undisclosed50 - 249 employeesChicago, ILIT Risk Managers LLC, a midsize IT strategy consulting company, is located in Chicago, Illinois. Their services include IT strategy consulting and cloud consulting & SI.Read More
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30Undisclosed2 - 9 employeesItasca, ILCybernon is a small Itasca, Illinois-based Cybersecurity company. Their services include Cybersecurity and IT managed services.Read More
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