Top 80 Penetration Testing Companies in Chicago
The Best of December 2025Looking for a top penetration testing company in Chicago?
Having vulnerable security poses a threat to your organization. In an age where data has become some of the most important assets that your company will have, improving security measures is always a must. Penetration testing aims to solve this problem by simulating real-life security breaches without the risk of an actual cyberattack. Also known as ethical hacking, this process helps identify weak spots within your IT network infrastructure by applying methods that real attackers would use.
A penetration testing company can assist you in determining your security vulnerabilities. Doing so will provide you with the information that you need to fortify your cybersecurity. Hiring the right penetration testing company can give you a significant advantage in safekeeping your virtual assets.
To assist you in your search for a partner, we’ve compiled this list of the top penetration testing services in Chicago. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Chicago Penetration Testing Services
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61$10,000+10 - 49 employeesAurora, ILVSecureLabs, a Cybersecurity company, provide Cybersecurity. They were established in 2015.Read More
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62Undisclosed50 - 249 employeesNaperville, ILAiRo Digital Labs, a big data company, is based in Naperville, Illinois and Gurugram, India. They specialize in BI & big data consulting & SI and cloud consulting & SI and were established in 2018.Read More
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63$5,000+10 - 49 employeesNaperville, IL2Ops Sp. Z o.o. Is a small cloud consulting & SI company based in Kraków, Poland and Naperville, Illinois. Launched in 2024, the team focuses on cloud consulting & SI, DevOps Managed Services, and Cybersecurity.Read More
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64Undisclosed2 - 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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65Undisclosed250 - 999 employeesAurora, ILSoftware development company Q1 Technologies, Inc. Is headquartered in Aurora, Illinois. They provide Custom Software Development and IT managed services and were established in 2002.Read More
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66Undisclosed50 - 249 employeesArlington Heights, ILTechWerks is a Corporate Training & Coaching company. In Arlington Heights, Illinois, their team provides Corporate Training & Coaching and Business Consulting.Read More
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67Undisclosed10 - 49 employeesSouth Barrington, ILIT strategy consulting company BSSI2 LLC specializes in IT strategy consulting and cloud consulting & SI. They were launched in 2005.Read More
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68Undisclosed10 - 49 employeesSt. Charles, ILFounded in 2008, RedLegg is a Cybersecurity and IT managed services company. The firm offers Cybersecurity and IT managed services, and is small.Read More
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69Undisclosed2 - 9 employeesPalatine, ILChimbly Consultants LLC is a Palatine, Illinois-based Cybersecurity company. Founded in 2010, the team offers Cybersecurity and IT strategy consulting.Read More
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70Undisclosed10 - 49 employeesElgin, ILCTI Technology is a Cybersecurity and IT managed services company. Launched in 2004, the company is located in Elgin, Illinois. Their team offers Cybersecurity and IT managed services.Read More
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71Undisclosed2 - 9 employeesGurnee, ILIT managed services company IntelliSupport was launched in 2023. Headquartered in Gurnee, Illinois, the team offers IT managed services and IT strategy consulting.Read More
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72Undisclosed2 - 9 employeesYorkville, ILCybersecurity company CyberGhost Security, LLC is in Yorkville, Illinois. They specialize in Cybersecurity.Read More
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73Undisclosed50 - 249 employeesSchaumburg, ILSennovate is a Cybersecurity company. The San Ramon, California-based firm provides Cybersecurity and IT managed services.Read More
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74Undisclosed2 - 9 employeesChicago, ILLaSalle Consulting Partners, Inc. Is a Cybersecurity company. They are headquartered in Chicago, Illinois. Their team specializes in Cybersecurity.Read More
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75Undisclosed250 - 999 employeesChicago, ILEstablished in 1911, Thompson Hine LLP is a Business Consulting company. The team specializes in Business Consulting and Compliance Consulting.Read More
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76Undisclosed2 - 9 employeesSchaumburg, ILCybersecurity and IT managed services company Bambenek Consulting, LTD was launched in 2011. The firm provides Cybersecurity and IT managed services, and is small.Read More
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77Undisclosed10 - 49 employeesMokena, ILReachOut Technology is a Cybersecurity company. The small Mokena, Illinois-based team specializes in Cybersecurity and IT managed services. The company was established in 2010.Read More
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78Undisclosed2 - 9 employeesAddison, ILTactical Lighting Systems, Inc. Is a small software development company founded in 2003. Their team offers Custom Software Development and IT managed services.Read More
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79Undisclosed50 - 249 employeesArlington Heights, ILTechTiera Corporation, a midsize IT strategy consulting company, is headquartered in Arlington Heights, Illinois. The team provides IT strategy consulting and BI & big data consulting & SI.Read More
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