Top Tech Companies in Chicago, Illinois (4,955)

Block, Inc. is a global technology company with a focus on financial services. Made up of Square, Cash App, Afterpay, TIDAL, Bitkey, and Proto, Block, Inc. builds technology to increase access to the global economy. Each of our brands unlocks different aspects of the economy for more people. Square makes commerce and financial services accessible to sellers. Cash App is the...

Grainger is a leading broad line distributor with operations primarily in North America and Japan. We Keep The World Working® by serving more than 4.6 million customers worldwide with products delivered through innovative technology and deep customer relationships. We’re dedicated to providing value for customers, fostering an engaging culture for team members and driving strong financial results. Our welcoming workplace...

IG North America is home to tastytrade, tastylive, tastyfx, and tastycrypto—a family of brands built to democratize trading and empower individual investors. Founded in Chicago by the creators of thinkorswim, acquired by London-based IG Group in 2021, we combine startup innovation with the backing of a global fintech leader with 50+ years of experience. From our headquarters in Chicago's Fulton...

Mondelēz International, Inc. (NASDAQ: MDLZ) is an American multinational confectionery, food, and beverage company based in Illinois which employs approximately 90,000 individuals around the world. Our Purpose Our purpose is to empower people to snack right. We will lead the future of snacking around the world by offering the right snack, for the right moment, made the right way. Our...

DFIN is a leading global risk and compliance solutions company. We provide domain expertise, software and data analytics for every stage of our clients’ business and investment lifecycles. Markets fluctuate, regulations evolve, technology advances, and through it all, DFIN delivers confidence with the right solutions in moments that matter.

We solve for advertising campaign and creative complexities - both key elements to the time/money savings and performance that brands, agencies and businesses seek. Our unified platform combines media, creative, and intelligence, offering end-to-end workflows powered by AI across the open and closed web. With over 700 brands and advertisers, we've proven that dynamic and personalized creative makes advertising impactful. We...

The Federal Reserve Bank of Chicago is one of 12 regional Reserve Banks across the United States that, together with the Board of Governors in Washington, D.C., serves as the nation's central bank. The role of the Federal Reserve System, since its establishment by an act of Congress in 1913 , is to foster a strong economy and a stable...

Flywire is a global payments enablement and software company. We combine our proprietary global payments network, next-gen payments platform and vertical-specific software to deliver the most important and complex payments for our clients and their customers.

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...

Since our founding in 2004, Simplex has continued to remain at the forefront of the industry by focusing on innovation, automation, and data-driven analysis. Simplex is a leading technology-driven market-making firm that builds proprietary software to create and capitalize on financial opportunities. We combine talented and dedicated technologists with data-driven employees to solve constantly evolving puzzles in the marketplace. Specializing in...

The Wolverine companies comprise a number of diversified financial institutions specializing in proprietary trading, asset management, order execution services, and technology solutions. We are recognized as a market leader in derivatives valuation, trading, and value-added order execution across global equity, options, and futures markets.

At Locusview, we help utilities control and optimize their capital projects while preparing for the coming challenges of building smarter infrastructure. This is why we built the world’s best Digital Construction Management (DCM) platform that helps energy, telecom and water utilities manage large scale construction projects from Planning to Revenue. We are fast-paced, and expect employees to use their creativity...

Wipfli is an advisory firm that delivers holistic solutions to help clients navigate the modern marketplace, optimize performance and drive growth. Our more than 3,000 full-time associates deliver digital, people, strategy, risk, financial and outsourcing solutions to 54,000+ clients. "Wipfli" is the brand name under which Wipfli LLP and Wipfli Advisory LLC and its respective subsidiary entities provide professional services. Wipfli...

As the world’s largest asset manager, BlackRock partners with investors around the globe to help them (and those on whose behalf they invest) plan for life’s most important goals – like retirement, home ownership and their children’s education. Our clients range from governments, foundations and other large institutions to those investing on behalf of individuals, including firefighters, nurses, teachers and...

NinjaHoldings was founded in 2017 by a team seeking to revolutionize the way everyday Americans interact with financial services. Through our CreditNinja and NinjaCard brands, we empower people overlooked by traditional financial institutions to take control of their finances via a full suite of digital banking and lending products, providing incentives and rewards along the way as we guide them...

Rundoo gives independent paint and hardware stores the best technology to rise above the competition, so you can win customers, streamline operations, and grow your business.

Join. Grow. Lead the Future of Supply Chain. At Cleo, we don’t just integrate supply chains—we orchestrate them. As the pioneer and global leader of the Supply Chain Orchestration software category, Cleo is helping thousands of companies around the globe drive transformation, deliver excellence, and shape the future of their global operations. Whether you're joining us from outside or growing within, Cleo...

More than 2 million futures traders trust NinjaTrader's award-winning software and brokerage services to help them trade smarter. Since 2003, we've been building better futures for all traders by making futures trading more accessible, scalable, and user-friendly. As a bold, innovative thought leader in the trading space, we build products and services that empower active futures traders to easily analyze...

Over the last 15 years, we’ve grown from a startup to a market-leading organization with over 150 team members, and we’ve created an award-winning culture that makes this company an amazing place to work. We've been ranked on multiple best places to work lists including the 2026 BuiltIn Chicago rankings.

CDW Corporation is a leading multi-brand provider of information technology solutions to business, government, education and healthcare customers in the United States, the United Kingdom and Canada. A Fortune 500 company and member of the S&P 500 Index, CDW helps its customers to navigate an increasingly complex IT market and maximize return on their technology investments. For more information about...