Top Startups in Illinois (3,026)

Built In is the AI-powered career platform that connects innovative companies with professionals navigating their careers in a world reshaped by AI. For candidates, we provide AI-driven job recommendations and resources that support smarter career decisions. For employers, we deliver the always-on recruitment and reputation platform that ensures your brand is visible, trusted, and chosen. By combining employer brand insights,...

Moov is a payments infrastructure platform making it easy to accept, store, send, and spend money all from a single, elegantly-designed API. Instead of stitching together multiple vendors, software companies simply add Moov to their products to get the latest in payment technology, user onboarding, licensing, compliance, and more.

Allwyn North America is a full-service lottery operator, supplier, and business partner to North American lotteries. We make play better for all with innovative lottery technology and services, engaging content, and tried-and-tested playbooks that responsibly grow lotteries’ player base, revenue, and returns to good causes over time. As operating partner to the Illinois Lottery, Allwyn North America works to responsibly...

Prolaio is a clinical intelligence company dedicated to unlocking continuous, predictive and shareable heart data to liberate patients from hospital-based reactive care and accelerate every new therapy. The company was created by cardiologists, cardiovascular practitioners, and data scientists specifically to address the world’s number one cause of death — cardiovascular disease. By combining scientific rigor with cutting‑edge technology, Prolaio aims...

YCharts was founded in 2009 to democratize investment research. As we build an increasingly powerful and intuitive tool that our clients use daily, we might be outgrowing our name—but not our mission. From humble beginnings, YCharts has grown to become an all-in-one platform for investment research and client communication. Our guiding principle has always been to create software that elevates and...

Bringg is the leading Delivery Management Platform -- optimizing last mile delivery, fulfillment, and returns for retailers and carriers worldwide. Bringg transforms delivery into a competitive advantage for 800+ customers, increasing order capacity, reducing costs, and ensuring branded customer experiences, handling over 200 million orders annually.

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.

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...

Supernova is the technology leader in securities-based lending ("SBL") solutions that connect and empower the entire financial ecosystem. We offer the world’s first and only cloud-based, fully-customizable, end-to-end software solution to automate securities-based lending from origination through the life of the loan.

Attain is the most trusted and comprehensive source for permissioned, real-time purchase data in the United States. By connecting directly with over 10 million consumers, Attain delivers unmatched accuracy and scale across audience activation, insights, and in-flight optimization, and measurement, helping marketers tie every dollar of media to real-world sales outcomes. Attain’s portfolio of owned and operated apps, spanning financial...

We are a purpose driven healthcare technology company passionate about innovation and using technology to help people by solving real world problems. The ALIS team designs, builds, delivers, and supports our flagship product ALIS (pronounced “Alice” and stands for Assisted Living Integrated Solution).

Purchasing Platform is a unique B2B marketplace tailored for all sectors of property management. We leverage cutting-edge technology to empower property portfolios, enabling them to manage purchasing activities efficiently across all properties while driving real cost savings from trusted suppliers. Our platform services portfolios across the nation, enhancing operational workflows with features like embedded multi-level workflows, automated expense classification, and...

Caxy is a Chicago based software consulting and custom software development agency founded in 1999. Ranked top 3 software companies in Chicago by Clutch. Our secret sauce is that we want to make life as a developer fun, rewarding and not a grind. We have a commitment we call "The Caxy Promise." Many jobs in software are characterized by clients...

SentiLink is the leading fraud intelligence company, providing financial institutions and fintechs with purpose-built solutions for identity verification and fraud prevention. Our products detect synthetic fraud, identity theft, and hard-to-detect first-party fraud in real time — helping partners stop losses before they happen while approving more legitimate customers. Founded in 2017 by Naftali Harris and Max Blumenfeld, creators of the risk...

It’s an exciting time to be a Teragonian! Come help us transform the Private Equity industry and drive AI innovation while taking on new challenges and career growth opportunity.​ Teragonia provides an AI-based Value Orchestration platform for private equity backed mid-market operators, helping them transform fragmented operational data into an execution-focused view of business performance. With Teragonia, mid-market leaders align their...

At Toro TMS, we are on a mission to deliver technology that drives lasting improvements for the trucking industry. Our dedicated team has built an easy-to-use, modern end-to-end TMS specifically designed for bulk haulers. From load management and dispatch, to accounting and driver payroll, we provide a single software solution to help our customers move more loads.

Nextpoint is a Chicago-based legal technology company that has been building cloud-based eDiscovery and litigation software since 2001. We make it simpler for law firms, corporate legal teams, and government agencies to manage the full lifecycle of litigation — from data ingestion and document review to case preparation and trial presentation. Our platform is built on the cloud, which means legal...

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.

Energy CX is a family-founded energy broker redefining how businesses buy energy. Powered by ABEL™, a proprietary platform, the company uses math-based trading methodologies to help customers treat energy like an investment, not a line item. Energy CX replaces fragmented tools and legacy broker models with a centralized, technology-led approach—reducing risk, controlling spend, and bringing clarity to complex energy markets....

At AdAction, we’re revolutionizing how brands connect with audiences through the power of mobile technology. As leaders in performance-driven marketing, we create innovative solutions that merge supply, loyalty, and rewards into seamless, mobile-first strategies. Our platform empowers brands and app developers to drive engagement, boost retention, and achieve sustainable growth by delivering personalized, reward-based experiences that foster genuine connections. With cutting-edge...