Top Chicago, IL Cybersecurity Companies (54)

Build what’s next — with tech that matters PwC provides professional services across Audit and Assurance, Advisory and Tax — powered by a global network of over 370,000 people in 149 countries. You may know us for our business expertise, but technology is core to how we help clients move faster, build trust and deliver meaningful outcomes. As a technologist, you’ll work...

A leading global aerospace company and top U.S. exporter, Boeing develops, manufactures and services commercial airplanes, defense products and space systems for customers in more than 150 countries. Our U.S. and global workforce and supplier base drive innovation, economic opportunity, sustainability and community impact. Boeing is committed to fostering a culture based on our core values of safety, quality and...

Cat Digital is the digital and technology arm of Caterpillar Inc., responsible for bringing digital capabilities to our world-famous yellow iron. With over 1.5M connected assets worldwide, our teams use data, technology, advanced analytics and AI capabilities to help our customers build a better world.

CSC is a global leader in providing business, legal, tax, and digital brand services to companies around the world. With more than 8,000 employees, CSC operates in more than 140 jurisdictions, delivering solutions that help businesses thrive. We pride ourselves on our client-focused approach, market-leading expertise, and unmatched global reach.

Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re building a resilient economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help...

Capco, a Wipro company, is a global management and technology consultancy specializing in driving transformation in the energy and financial services industries. Capco operates at the intersection of business and technology by combining innovative thinking with unrivalled industry knowledge to fast-track digital initiatives for banking and payments, capital markets, wealth and asset management, insurance, and the energy sector. Capco’s cutting...

Founded in 2015 by former NSA cyber operators, Huntress protects all businesses—not just the 1%—with enterprise-grade, fully owned and managed cybersecurity products at the price of an affordable SaaS application. The Huntress difference is our One Team advantage: our technology is designed with our industry-defining Security Operations Center (SOC) in mind and is never separated from our service. We protect...

TransUnion is a global information and insights company that makes trust possible by ensuring that each consumer is reliably and safely represented in the marketplace. We do this by having an accurate and comprehensive picture of each person. This picture is grounded in our legacy as a credit reporting agency which enables us to tap into both credit and public record...

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.

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.

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.

Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence. At Convergint, our top priority is service in every way — service to customers, colleagues, and community. As an integrator, Convergint works alongside a global network of partners and manufacturers to design, install, and service electronic security, cybersecurity, fire and life safety, building automation,...

Our platform gives organizations a complete view of where their data lives, how it’s used, and how to keep it safe, so they can reduce risk and unlock the full value of their data, wherever it is. Backed by more than $1.7 billion in funding from top-tier investors including Accel, Blackstone, Coatue, Cyberstarts, Georgian, Lightspeed, and Sequoia, Cyera’s unified data...

McDonald’s is the world’s leading global foodservice retailer with over 38,000 locations in over 100 countries. We feed 68 million people every day and, along with our franchisees, employ 1.9 million people worldwide. We're a household name across the globe, and we’re in the midst of a tech revolution in our business, doubling down on tech and creating a tech...

As the world moves to a mobile-first economy, businesses need to modernize how they acquire, engage with and enable consumers. Prove’s phone-centric identity tokenization and passive cryptographic authentication solutions reduce friction, enhance security and privacy across all digital channels, and accelerate revenues while reducing operating expenses and fraud losses. Over 1,000 enterprise customers use Prove’s platform to process 20 billion...

Since 2003, Hidden Brains has been at the forefront of custom enterprise software development, harnessing the power of AI and next-gen technologies to deliver smart, scalable solutions. We support companies of all sizes—from bold startups to established enterprises—on their journey toward complete digital transformation. With a strong foundation in technologies like AI, ML, Cloud, DevOps, and Blockchain, we empower startups and...

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...

As a global leader in innovative wealth management, asset servicing and investment solutions, Northern Trust (Nasdaq: NTRS) is proud to guide the world’s most successful individuals, families and institutions by remaining true to our enduring principles of service, expertise and integrity. A globally recognized Fortune 500 Company in continuous operation since 1889, we’ve built a legacy of empowering clients to reach...

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.

Halborn is an award-winning, elite cybersecurity company for blockchain organizations. Halborn serves as your reputable partner to continuously assess an organization’s most vital assets, save time in your development lifecycle and provide world-class cybersecurity consulting and assessments every step of the way — far beyond smart contracts.