Top Tech Startups in Illinois, US in 2026

SonarMD was founded on the belief that there had to be a better way to gain control and get ahead of both the debilitating disease and skyrocketing costs. Enabling early intervention and management by enhancing the level of care offered through providers. SonarMD is the leading, value-based care coordination solution for complex chronic GI diseases. Our longitudinal, high-engagement platform makes it easy to detect deteriorating health sooner and intervene faster. We use a risk-based model to align clinical and financial incentives, sharing savings with health insurers and specialists to lower the overall cost of care.

Aethreallegence builds Inventory Cognition Infrastructure for physical retail. Our platform continuously detects where inventory records drift from physical reality, a condition we call Inventory Truth Decay, and corrects it in real time using computer vision, voice-assisted onboarding, and our proprietary Curiosity Protocol anomaly engine. Physical stores lose revenue not because they lack cameras, but because no system holds the full environment in memory. Ours does. It tracks products across the entire store, back room, coolers, counter, floor, and doors, and surfaces exceptions only when human input is needed. Staff stop counting. Operators stop guessing. We are a woman-owned, patent-pending deep-tech startup based in Peoria, Illinois. We are building the inventory truth layer that retail infrastructure has never had.

FairwAI is building real-time accountability infrastructure to detect bias in the moments that matter most. We’re solving one of the toughest challenges in tech: how to make fairness not just a principle but a system. From healthcare and hiring to hospitality and housing, bias shows up when people are most vulnerable. FairwAI turns those moments into measurable, actionable data—using AI, computer vision, and behavioral science to flag risks and enable institutional change before harm happens. We’re not a DEI tool. We’re compliance infrastructure for a new era—where safety, dignity, and fairness are non-negotiable. Our team includes engineers, policy thinkers, civil rights advocates, and public interest technologists from MIT, Harvard, Stanford, The UN, and beyond. We’re launching high-impact projects and building the backbone of ethical AI adoption across sectors. For interns & fellows, this is not a coffee-run experience. You’ll co-design tools, analyze live scenarios, and help shape the future of bias detection and remediation. Your work will be mentored, respected, and turned into real-world impact. If you care about fairness, ethics, and building tools that actually change lives—FairwAI is where your skills meet purpose. Join us. Let’s build the infrastructure fairness deserves.

Showdrop builds a better way for CPG brands to run powerful sampling campaigns at scale. The company's platform presents a chance for people to naturally come across and try out pertinent new products during their everyday activities. It includes touchless sampling, individualized suggestions, and immediate data analysis. This empowers brands to connect with their intended consumers by creating a constantly changing array of product displays and assessing the impact of their marketing efforts.

At Zerigo Health, we're changing what it means to live with a chronic skin condition. Millions of Americans with psoriasis and eczema face a broken system — months-long waits for care, treatments that don't stick, and costs that spiral out of control. We're fixing that. Zerigo's platform combines an FDA-cleared smart home device, AI-driven personalized care plans, and real human support to deliver clinical-grade dermatology care where people actually live — at home. Our results speak for themselves: 88% clinical success rates, 73% treatment adherence, and over $10M in savings generated for every 1,000 members on our platform. We're a fast-growing, mission-driven team at a pivotal moment. We are energized by hard problems, improving things along the way to benefit our members and each other. If you are motivated by meaningful work and the prospect of building something that genuinely improves people's lives, you'll fit right in here.