Top Illinois Cybersecurity Startups (30)

We cybersecure your organization. LeadingIT provides fast+friendly cybersecurity and technology (unlimited) support for nonprofits, manufacturers, schools, accounting firms, religious organizations, government, and law offices with 10-200 employees across the Chicagoland area.

NowSecure’s mission is to save the world from unsafe mobile apps. Founded in 2009, we are exclusively a mobile first, mobile only app security testing automation company that maintains deep roots within the security community, sponsoring open-source tools like Frida, Radare and r2frida.

Experiencing a security incident? Contact us for immediate support and we will respond within 15-minutes to begin the containment and recovery process. https://www.entaracorp.com/report-an-urgent-cybersecurity-incident Entara sets the standard as the world’s first eXtended Service Provider (XSP) and delivers exceptional, security-first IT solutions for their clients, including managed IT and cybersecurity services, incident response services, and other professional services. Founded in 2001, the...

Since 2003, Clark Schaefer Consulting has been providing superior accounting, control and technology/cybersecurity services to the business community. The Firm has an established reputation for delivering outstanding and customizes solutions for a reasonable cost. Integrity, quality, respect, and innovation are all values that we deliver to our clients, and are therefore traits found in our employees. Subsequently, as a Firm,...

Fingerprint empowers developers to stop online fraud at the source. We work on turning radical new ideas in the fraud detection space into reality. Our products are developer-focused and our clients range from solo developers to publicly traded companies. Some of our customers include Coinbase, Booking.com, Yahoo, and eBay just to name a few. We are a globally dispersed, 100% remote company...

Empirical builds mathematical models for security data. We maintain the world’s most advanced global models for cybersecurity, and we build local models that respond to your enterprise’s specific context and threat landscape.

We are Verity IT, your trusted partner in managed IT services, cybersecurity, and cloud solutions. Our mission is to empower businesses with seamless, secure technology solutions that drive productivity and resilience. 🚀 Mission: To deliver reliable, secure IT services that enable businesses to thrive and adapt in an ever-evolving digital landscape. 🌟 Vision: To be the preferred IT partner for businesses, providing...

We help enterprise organizations design, implement, and sustain their most critical security and technology programs. Our work spans four core disciplines: cybersecurity solution design and delivery across IAM, Data Security, Network Security, Threat & Vulnerability Management, CDR & Application Security, GRC & Compliance, AI Security, Quantum Security, and OT Security; program and project management that keeps complex, multi-stakeholder initiatives on...

Waratek is the Security-as-Code platform that enables security teams to automate the management of security behavior to reduce human error, remove false positives, and maintain lockstep with the rapid rate of code changes and deployments. Never before have security teams solved security at scale by protecting every application in their enterprise or patching vulnerabilities at scale with modern application development...

Scalesology is a data analytics, software development, and cybersecurity consulting company. Our services scale your processes, systems, data, and analytics to transform your business and improve your bottom line. We are technology agnostic and security conscious, focused on finding the right solution for your business needs, not trying to conform your business to a prescribed technology solution.

We are at the forefront of Gen AI cybersecurity using Microsoft Defender XDR + Microsoft Sentinel, powered by Microsoft Copilot for Security and our expert insights. We offer 24x7 comprehensive managed Extended Detection and Response (XDR), Identity Threat Detection & Response (ITDR), Data Security and Security Exposure Management services. Numerous leading mid-sized organizations operating in 37+ countries across 4 continents depend...

At Micro-Tech USA (MTUSA), we believe IT should feel like a partnership—not a headache. We help small and mid-sized businesses stay secure, productive, and ahead of the curve with managed IT services, cybersecurity, cloud solutions, and strategic tech consulting. Our clients count on us for everything from 24/7 support and network management to Microsoft 365, cloud migrations, and big-picture planning. Whether...

Network Perception protects mission-critical assets by empowering cybersecurity and compliance teams to achieve high levels of cyber resiliency through verification, visibility, and velocity. Built by a government-funded research team of cybersecurity and industry experts in network security and critical infrastructure protection, the NP-View platform is the industry standard to verify network segmentation and visualize industrial control network environments. As a small,...

MD Office Mail (MDOM) provides all the ancillary IT services that ensures HIPAA Compliance for individual doctors, small & large clinics and hospitals. Our services include encrypted email, secure fax and VoIP phone lines. We provide secure and HIPAA compliant email service for healthcare service providers which looks & feels as comfortable as a regular email services. We provide end-to-end...

Anansi Cyber is a cybersecurity firm that specializes in penetration testing and helping our clients find vulnerabilities. We apply scenarios that are leveraged by threat actors and APTs to uncover vulnerabilities that may affect client networks and provide the most robust information in how to best secure their environments to help improve their security posture.

Chicago Computer Network is a complete technology solution provider for businesses in Chicago and surrounding areas. We have a team of talented IT professionals who can solve your IT nightmares once and for all. Whether you need network security, managed IT services, email spam protection, or any other IT service, we have you covered. We are 100% committed to your satisfaction...

At oak9, we are passionate about removing the friction between development and security so that businesses can achieve development velocity and agility without compromising on security. We are a SaaS company with a cloud native security automation platform that analyzes infrastructure-as-code and seamlessly integrates into existing development workflows to build applications that are secure and compliant by design.

ApplyLogic is a certified Service-Disabled Veteran Owned Small Business (SDVOSB) and leading provider of integrated technology solutions to customers across the public and private sectors. Our business is about optimizing your business, through the full range of IT services that are critical to both daily operations and long-term strategic plans. We have been recognized at both the national and local...

Recognized by Crain’s as one of 2025’s Most Innovative Companies, UncommonX helps customers move from reactive defense to proactive resilience, with the context, prioritization, and insights needed to reduce risk and respond with precision. We believe cybersecurity should deliver more than alerts — it should deliver clarity, confidence, and control. That’s why we built an AI-powered Exposure Management platform that gives...

TradingBlock was recently named the 2025 Best Brokerage for Options Trading by Benzinga based on our commitment to providing investors, active traders, and investment professionals intuitive, fully customizable brokerage and trading solutions.