Top 60 Cybersecurity Companies in St. Louis
The Best of December 2025Looking for a top cybersecurity consultant in St. Louis?
Check out our list of the best cybersecurity consulting companies to choose a partner that can secure your company. Preventing data breaches should be the top security priority for all businesses in the digital age.
To assist you in your search for a partner, we’ve compiled this list of the top cybersecurity consulting companies in St. Louis. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best St. Louis Cybersecurity Consultants
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31Undisclosed250 - 999 employeesChesterfield, MOLaunched in 1993, InterVision Systems is a midsize Cybersecurity company. Their services include Cybersecurity and IT managed services.Read More
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32Undisclosed2 - 9 employeesChesterfield, MOCISO Sidekick is a Cybersecurity company. The company is located in Chesterfield, Missouri. Their team specializes in Cybersecurity.Read More
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33Undisclosed10 - 49 employeesBallwin, MOAnderson Technologies is an IT strategy consulting company. In Ballwin, Missouri, the team offers IT strategy consulting and cloud consulting & SI.Read More
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34Undisclosed50 - 249 employeesSt. Louis, MOMaryville Consulting Group is an IT strategy consulting company. They are located in St. Louis, Missouri. Their team focuses on IT strategy consulting and cloud consulting & SI.Read More
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35Undisclosed2 - 9 employeesHigh Ridge, MOBranham IT Solutions, LLC is a Cybersecurity company. In High Ridge, Missouri, the company provides Cybersecurity and Corporate Photography.Read More
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36Undisclosed2 - 9 employeesSt. Louis, MOGlobal Enterprise Services, LLC is a custom software development firm. The St. Louis, Missouri-based firm was established in 2018. Their services include Custom Software Development and Cybersecurity.Read More
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37Undisclosed2 - 9 employeesSt. Louis, MOHarpy IT Solutions is an IT managed services company. The St. Louis, Missouri-based company was founded in 2012. Their services include IT managed services and Cybersecurity.Read More
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38Undisclosed2 - 9 employeesChesterfield, MOSmall Cybersecurity company Innovilink, is in Chesterfield, Missouri. Their services include Cybersecurity.Read More
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39Undisclosed50 - 249 employeesSt. Louis, MOCEdge Inc. Is a midsize IT strategy consulting company launched in 2004. Their team focuses on IT strategy consulting and cloud consulting & SI.Read More
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40Undisclosed10 - 49 employeesSt. Louis, MONight Lion Security is a Cybersecurity company established in 2012. In St. Louis, Missouri, the team provides Cybersecurity and IT managed services.Read More
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41Undisclosed10 - 49 employeesSt. Louis, MOAlliance Technologies, LLC, an IT strategy consulting company, was founded in 2009. The team provides IT strategy consulting and cloud consulting & SI and is based in St. Louis, Missouri.Read More
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42Undisclosed2 - 9 employeesWentzville, MOComputer Paramedic - STL is a Cybersecurity company. Launched in 1995, the team provides Cybersecurity and IT managed services. The agency is located in Wentzville, Missouri.Read More
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43Undisclosed10 - 49 employeesChesterfield, MONorton Digital Consulting, an IT strategy consulting company, was launched in 2011. The team specializes in IT strategy consulting and BI & big data consulting & SI.Read More
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44Undisclosed50 - 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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45Undisclosed10 - 49 employeesChesterfield, MOData Solutions Group is an IT strategy consulting company. Their small team is in Chesterfield, Missouri. Their services include IT strategy consulting and IT managed services.Read More
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46$5,000+10 - 49 employeesWashington, MONOC Technology is a cloud consulting & SI company launched in 2009. The firm specializes in cloud consulting & SI and Cybersecurity.Read More
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47Undisclosed10 - 49 employeesSt. Peters, MOPearl Solutions Group is a cybersecurity company. Established in 1994, the team provides cybersecurity. Their small agency is St. Peters, Missouri-based.Read More
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48Undisclosed2 - 9 employeesWebster Groves, MOCryptex Cyber Security LLC is a Cybersecurity company headquartered in Webster Groves, Missouri. The team provides Cybersecurity.Read More
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49Undisclosed10 - 49 employeesEllisville, MONTP Cyber Security is a Cybersecurity company. Headquartered in Ellisville, Missouri, the firm was founded in 1999. Their team focuses on Cybersecurity.Read More
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50Undisclosed50 - 249 employeesSt. Louis, MOSpearTip is a midsize St. Louis, Missouri-based Cybersecurity company. The team offers Cybersecurity.Read More
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51Undisclosed50 - 249 employeesChesterfield, MOTechGuard Security is a Cybersecurity company. Based in Chesterfield, Missouri, the company was founded in 2000. Their services include Cybersecurity.Read More
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52Undisclosed10 - 49 employeesSt. Louis, MOHeadquartered in St. Louis, Missouri, ThrottleNet, Inc. Is a small Cybersecurity company. The team focuses on Cybersecurity.Read More
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53Undisclosed2 - 9 employeesSt. Louis, MOCybersecurity and other IT consulting and SI company NightLion Security is in St. Louis, Missouri. Their services include Cybersecurity and other IT consulting and SI.Read More
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54Undisclosed2 - 9 employeesSparta, ILCybersecurity and IT managed services company Complete Technology Solutions LLC focuses on Cybersecurity and IT managed services. They are based in Sparta, Illinois.Read More
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