Top Tech Companies in Illinois (5,502)

Founded in Chicago in 1987 by Stan Day, SRAM, LLC has grown to be one of the world's largest bicycle component manufacturers. Today, we are led by CEO, Ken Lousberg, and Stan Day serves as Chairman of our Board. SRAM’s global footprint helps us bring cycling to every corner of the globe, including your local roads and trails. We design and...

Grainger is a leading broad line distributor with operations primarily in North America, Japan and the United Kingdom. We Keep The World Working® by serving more than 4.5 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....

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...

As the foundation for secure markets, OCC is a customer-driven organization that delivers world-class Risk Management, Clearing, and Settlement Services for a sophisticated mix of financial products that includes standard options, stock loans, and futures contracts.

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.

Clear Street’s mission is to give every sophisticated investor access to every asset, in every market, through a unified platform built for speed, transparency and scale. We give our clients the technology, tools, and service once reserved for the largest institutions, rebuilt with modern infrastructure. Our single, cloud-native, end-to-end capital markets platform powers investor growth today and is transforming how they...

Ahold Delhaize USA, a division of global food retailer Ahold Delhaize, is part of the U.S. family of brands, which includes five leading omnichannel grocery brands – Food Lion, Giant Food, The GIANT Company, Hannaford and Stop & Shop. Our associates support the brands with a wide range of services, including Finance, Legal, Sustainability, Commercial, Digital and E-commerce, Technology and...

Fortune Brands Innovations is an industry-leading home, security and digital products company. Our driving purpose is to Elevate Every Life by Transforming Spaces into Havens. We’re advancing exciting innovations across our portfolio, which includes: Moen, House of Rohl, Aqualisa, SpringWell, Therma-Tru, Larson, Fiberon, Master Lock, SentrySafe and Yale residential. We’re delivering trust, dependability, sustainability, and style. To make it all...

Strata provides financial software, data, and insights to drive decisions and performance.

Nextpoint is the industry leader in delivering cloud-based services for eLaw. Our market leading software and services help legal related organizations conquer their eDiscovery, Litigation and Admin needs. We do this by providing a powerful SaaS platform with world-class support and engagement teams that help hundreds of law firms across the country manage large data sets, identify relevant information via...

OpenX is focused on unleashing the full economic potential of digital media companies. We do this by making digital advertising markets and technologies that are designed to deliver optimal value to publishers and advertisers on every ad served across all screens. We’re an independent omni-channel supply-side platform (SSP) and a global leader in supply-side targeting, transparency, and sustainability. Through our...

QuillBot is on a mission to make writing painless. We are starting with our state-of-the-art AI paraphraser which functions as a full-sentence thesaurus. Millions of people already use it to craft sentences, improve fluency, and get over writer's block.

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.

Lessen is the tech-enabled, end-to-end property service provider that is transforming how commercial and residential real estate services are delivered and managed at scale. Lessen’s technology platform provides data-driven insights that unlock key growth opportunities for the entire real estate ecosystem—including investors, owners, managers, and service providers. The company leverages a network of over 30,000 vetted, qualified vendors (Lessen Affiliates)...

We bring together one of the world’s largest libraries of multimodal clinical and molecular data with a robust suite of AI tools to help physicians personalize care in real time, connect patients with therapies and clinical trials, and enable partners to accelerate discovery and development of new treatments. With ~8 million de-identified research records and 350+ petabytes of data, Tempus partners...

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.

LogicGate® is the AI-powered enterprise GRC platform, helping governance, risk, and compliance teams limit surprises, strengthen resilience, augment program performance, and confidently quantify impact and business value. Built to provide a centralized view of risk and compliance, with AI intelligence woven into the platform's core, LogicGate delivers real-time insights and actionable data to help drive current business decisions, with the...

iManage is dedicated to Making Knowledge Work. Over one million professionals across 65+ countries rely on our intelligent, cloud-enabled, secure knowledge work platform to uncover & activate the knowledge that exists inside their business content and communications. We are continuously innovating to solve the most complex professional challenges & enable better business outcomes. Our work is not always easy but it...

At Affirm, we help people say yes to the things that matter with flexible, transparent ways to pay over time. No hidden fees, no compound interest, and no fine print—just a smarter way to spend.

Who We Are Founded in 2001, Adage Technologies is a digital engineering firm building modern, AI‑enabled solutions that help organizations engage their audiences and operate more efficiently. With offices in Chicago and Medellín, our 120‑person team blends strategy, design, engineering, and data to create impactful digital experiences for performing arts organizations, associations and accreditation bodies, and manufacturing and distribution companies. What We...