Top 60 Cybersecurity Companies in St. Louis
The Best of March 2026Looking 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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1$1,000+250 - 999 employeesSt. Louis, MOBased in Dallas, Texas; Louisville, Kentucky; Shreveport, Louisiana and Fort Worth, Texas, IT GOAT is an IT managed services company. The midsize company was founded in 2018. Their team specializes in IT managed services, IT strategy consulting, cloud consulting & SI, and Cybersecurity.Read More
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Quadratic InsightsIndustries
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2$5,000+1,000 - 9,999 employeesSt. Louis, MOSikich is a Chicago, Illinois-based Cybersecurity company. The firm focuses on Cybersecurity, IT managed services, ERP consulting and SI, and Compliance Consulting and is large.The firm was established in 1982.Read More
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3$1,000+250 - 999 employeesSt. Louis, MOIT managed services company The 20 MSP was founded in 1986. The firm offers IT managed services, cloud consulting & SI, unified communications consulting & SI, Cybersecurity, and more and has a midsize team. The firm is based in Plano, Texas; Enterprise, Alabama; Phoenix, Arizona and Phoenix, Arizona.Read More
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The Fratelli GroupIndustries
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4$1,000+10 - 49 employeesCreve Coeur, MOModel Technology Solutions is an IT strategy consulting company launched in 2014. They are located in Creve Coeur, Missouri and have a small team. Their services include IT strategy consulting, cloud consulting & SI, cybersecurity, IT managed services, and more.Read More
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5Undisclosed10 - 49 employeesOlivette, MORead More
Certified NETS, Inc. Is an IT strategy consulting and IT managed services company. The small team is headquartered in Olivette, Missouri. Their services include IT strategy consulting and IT managed services.
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6$5,000+10 - 49 employeesO'Fallon, ILSmall Cybersecurity company Alpine Security, is in O'Fallon, Illinois. The team focuses on Cybersecurity.Read More
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7Undisclosed50 - 249 employeesEarth City, MOIT managed services company Five Nines was established in 2001. The midsize Lincoln, Nebraska-based team offers IT managed services, Cybersecurity, IT strategy consulting, and IT staff augmentation.Read More
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8$1,000+250 - 999 employeesSt. Louis, MOIT Solutions is a midsize IT managed services company located in Fort Washington, Pennsylvania and Syosset, New York. Their services include IT managed services and Cybersecurity.Read More
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9Undisclosed10 - 49 employeesCollinsville, ILComputerease is a small IT strategy consulting company established in 1984. Their services include IT strategy consulting and Cybersecurity.Read More
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10$5,000+10 - 49 employeesSt. Louis, MOMechcubei Solutions is a St. Louis, Missouri-based mobile application development firm. Their services include Mobile App Development and UX/UI Design.Read More
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11$1,000+10 - 49 employeesRichmond Heights, MOLaunched in 1994, Acumen Managed IT Services is a small IT strategy consulting company based in Richmond Heights, Missouri. Their team focuses on IT strategy consulting and Cybersecurity.Read More
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12Undisclosed1,000 - 9,999 employeesSt. Louis, MOFORVIS is an Accounting company established in 1923. Their team offers Accounting and Business Consulting.Read More
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13Undisclosed50 - 249 employeesEdwardsville, ILHolistix by Utilitra is an IT strategy consulting company. The Edwardsville, Illinois-based company specializes in IT strategy consulting and Cybersecurity.Read More
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14$5,000+50 - 249 employeesSt. Louis, MOFounded in 1981, Oakwood Systems Group, Inc. Is a cloud consulting & SI company. The firm focuses on cloud consulting & SI and BI & big data consulting & SI.Read More
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15Undisclosed50 - 249 employeesSt. Louis, MOIT managed services company Acropolis Technology Group was founded in 1996. The midsize team provides IT managed services and IT strategy consulting.Read More
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16$5,000+10 - 49 employeesRichmond Heights, MOIT managed services company Acumen Consulting provides IT managed services and IT strategy consulting. They were founded in 1994.Read More
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17$5,000+250 - 999 employeesChesterfield, MONet at Work LLC is an IT managed services company. Their midsize team is based in New York, New York; Hialeah, Florida; Totowa, New Jersey and North Attleborough, Massachusetts. The company offers IT managed services and Cybersecurity.Read More
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18Undisclosed10 - 49 employeesSt. Louis, MOLaunched in 2001, Midwest Networking Services, LLC, a small Cybersecurity company, is in St. Louis, Missouri. Their team provides Cybersecurity and IT managed services.Read More
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19$5,000+10 - 49 employeesSt. Louis, MOCloud consulting & SI company Alambda Systems was founded in 2014. The firm focuses on cloud consulting & SI and Cybersecurity, and is small.Read More
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20Undisclosed50 - 249 employeesSt. Louis, MOPolaris Solutions, LLC is an IT managed services company founded in 2008. The agency provides IT managed services and Custom Software Development.Read More
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21Undisclosed10 - 49 employeesSt. Louis, MORoad Map Technologies, LLC is a Cybersecurity and Compliance Consulting company. Headquartered in St. Louis, Missouri, the firm provides Cybersecurity and Compliance Consulting.Read More
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22Undisclosed250 - 999 employeesSt. Louis, MOSumnerOne is a St. Louis, Missouri-based ECM consulting and SI company. They specialize in ECM consulting and SI and IT managed services.Read More
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23Undisclosed250 - 999 employeesSt. Louis, MOTierPoint is a midsize big data analytics company headquartered in St. Louis, Missouri. Their services include BI & big data consulting & SI and cloud consulting & SI.Read More
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24$1,000+10 - 49 employeesChesterfield, MOFounded in 2001, Alliance Tech is a small IT managed services company. Their team offers IT managed services, Cybersecurity, IT strategy consulting, cloud consulting & SI, and more. The company is headquartered in Chesterfield, Missouri and Grand Rapids, Michigan.Read More
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25Undisclosed250 - 999 employeesSt. Louis, MORead More
Frontline Managed Services is an IT strategy consulting company. The midsize team is in St. Louis, Missouri. Their services include IT strategy consulting, cybersecurity, IT managed services, custom software development, and more.
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26$25,000+50 - 249 employeesSt. Louis, MOEstablished in 1997, Ross Technologies, (RTGX) is a custom software development company. The team provides Custom Software Development and BI & big data consulting & SI.Read More
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United States ArmyIndustries
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27Undisclosed50 - 249 employeesSt. Louis, MOIT managed services company Da-Com Corporation is located in St. Louis, Missouri and Columbia, Missouri. The team offers IT managed services and Cybersecurity.Read More
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28Undisclosed10 - 49 employeesCollinsville, ILHeadquartered in Collinsville, Illinois and St. Louis, Missouri, Computerease Group, Inc is a Cybersecurity company. Their services include Cybersecurity and IT managed services.Read More
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29Undisclosed2 - 9 employeesSt. Louis, MOCapnion is a Cybersecurity company. The small St. Louis, Missouri-based team provides Cybersecurity and Custom Software Development. The firm was established in 2018.Read More
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30Undisclosed10 - 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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