Top Illinois Software Companies (1,472)

Legora is the agentic operating system for legal work, supporting lawyers in research, review, and drafting across complex matters. It is used by more than 130,000 legal professionals at more than 2,000 leading law firms and in-house legal teams across over 80 markets.

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...

Atlassian creates teamwork solutions for high-performing teams. Our portfolio of collaboration and work management software products includes Jira, Confluence, Trello, Loom and Rovo. More than 300,000 businesses worldwide rely on Atlassian’s technology, including 80 percent of Fortune 500 companies. Our solutions support various business teams and they help organizations plan, track, and deliver their biggest ideas together.

McMaster-Carr is trusted by industrial customers around the world to keep manufacturing lines running, operations moving, and turn new ideas into real products. Since 1901, we’ve earned that trust by offering the right products, making them easy to find, and delivering them quickly. Our industry-leading e-commerce experience, indispensable product selection, and world-class service bring hundreds of thousands of customers to our...

By automating and streamlining common accounting workflows to make them more efficient, FloQast is where accounting teams want to work so they can focus on what matters most, even when that’s just logging off on time. Whether automating reconciliations, documentation requests, or streamlining recurring accounting processes, such as the month-end close, financial reporting, or payroll, FloQast's platform enhances the way...

Our platform creates comprehensive digital twins of your supply chain with AI-powered digital workers to automate resolution, improve collaboration and drive outcomes across all stakeholders. Unlike traditional control towers, we enable true real-time execution and intelligent fulfillment, transforming both your supply and customer-facing operations.

NinjaTrader's engineering, product, and operations teams build for nearly 4 million futures traders worldwide. Real users, real markets, real confidence in the tech behind every trade. We've been at this since 2003 — launching our own brokerage in 2014 and our FCM in 2021 — and we know what scale looks like in this category. In 2025, NinjaTrader joined Kraken and...

IMC is a research-driven trading firm where quantitative modeling, machine learning, and engineering shape how modern markets are traded. A stabilizing force in markets since 1989, we provide liquidity across trading venues, delivering the best outcome in value and risk to investors. Using our own technology and capital, we build proprietary systems and algorithms that operate across global markets. Our...

Perk (formerly TravelPerk) is the intelligent platform for travel and spend management. Built to tackle the time-consuming, manual work that gets in the way of real work, our tools automate everything from travel bookings to expenses, invoice processing, and more. By eliminating this shadow work that wastes hours, erodes morale, and saps innovation, we’re on a mission to power real...

Qualtrics is trusted by thousands of the world’s best organizations to power exceptional customer and employee experiences that build deep human connections, increase customer loyalty, boost employee engagement, and drive business success. Our advanced AI and specialized Experience Agents™ allow businesses and governments to proactively interact with customers and employees in personalized ways across every channel and touchpoint, respond in-the-moment...

Caxy is a Chicago-based custom software and AI consultancy that has been building production software since 1999. We’re an AWS Advanced Partner, and our senior engineers work across gaming, fintech, manufacturing, hospitality, and healthcare, taking projects from prototype to production without offshore handoffs. We’ve stuck around this long by treating people well. The Caxy Promise means clear expectations, protected focus time,...

At Vibes, our premier mobile messaging platform helps world-class brands intelligently automate and optimize their mobile marketing outcomes through the power of SMS, MMS, RCS and Mobile Wallet. Industry leaders like Chipotle, Kohl’s, Polo Ralph Lauren, The Children's Place, KFC, Ulta Beauty, and others use Vibes to grow their customer relationships with relevant, high-volume mobile messaging and mobile wallet marketing on...

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...

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).

We contribute to human progress by empowering people to express themselves, live in the moment, learn about the world, and have fun together.

Pricing is one of the most powerful levers for financial performance, but it’s also one of the hardest to control. Markets move fast, but pricing still changes slowly due to manual processes and legacy tools. Companies adjust prices only after damage is done. Millions of pricing decisions are made across products, regions, and deals, and even small inconsistencies lead to tens of...

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...

Engine is the AI-native platform for intelligent travel. For a decade, Engine has built the proprietary technology and supply behind modern business travel, serving 40,000 customers and 2 million travelers, along with leading travel and AI companies that build on Engine's infrastructure. One system powers business travel, group travel, human agents, and AI agents. Engine has been recognized as one of...

Here at Strata, we provide financial planning software, data, and insights to drive decisions and performance for organizations spanning the healthcare, higher education, and financial services industries.

We are a global investment research and financial data company with 40-plus offices across North America, Europe, Australia, and Asia. Our products and services are used daily by individual investors, financial advisors, asset managers, retirement plan providers, and institutional investors. We provide data, research, and analysis across managed investment products, publicly listed companies, private capital markets, debt securities, and real-time...