Top Tech Startups in Illinois, US in 2026

Array was founded in 2020. Our investors include Battery Ventures, General Catalyst, and Nyca Partners. Array is an embeddable fintech products platform, fueling financial progress for many of the world’s leading fintechs, financial institutions, and digital brands with a suite of credit, financial management, and privacy tools - building a platform to help consumers own their financial future. We at Array drive engagement and revenue for our clients, helping them stand out in a crowded market, and forge deeper relationships with customers.

Yieldmo is one of the world’s fastest-growing digital advertising and attention analytics companies. Agencies and brands use its premium marketplace to create, measure, model, and optimize their campaigns for unmatched scale and performance. Underpinned by AEROS Attention Analytics, advertisers can now truly understand how consumers are interacting with ads before the click, and after the initial view. Yieldmo ultimately delivers better results by harnessing the power of attention data to drive superior audience engagement and targeting.

Nextdoor is the world's largest social network for the neighborhood, enabling truly local conversations that empower neighbors to build stronger and safer communities. Building connections in the real world is a universal human need. That truth, and the reality that neighborhoods are one of the most important and useful communities in our lives have been guiding principles for Nextdoor. Today, neighbors rely on Nextdoor in more than 242,000 neighborhoods around the world in the United States, the United Kingdom, Germany, France, the Netherlands, Italy, Spain, Sweden, Denmark and Australia, with many more to come.

Chime was created with the mission to make financial peace of mind a reality for millions of Americans. We're one of the fastest-growing financial technology companies in the U.S., offering banking services that are helpful, easy, and free—because we want to profit with our members, not from them. Our model doesn’t rely on overdraft, monthly service, minimum balance, or other member fees—it just focuses on delivering member value. How does Chime work? We partner with regional banks to design member-first financial products. This creates a more competitive market with better, lower-cost options for everyday Americans who aren’t being served well by traditional banks. We offer access to bank accounts with fee-free overdraft, provide members the chance to receive early access to their paychecks, help them improve their credit, and more! We help drive innovation, inclusion, and access across the industry with one of the most experienced leadership teams in fintech guiding us along the way. We were recently valued at over $25.5B and we’ve raised over $1.7B in funding from leading investors including Sequoia Capital Global Equities, SoftBank Vision Fund 2, General Atlantic, Tiger Global, Dragoneer, DST, Coatue, Iconiq, Menlo Ventures and others. *Chime is a financial technology company, not a bank. Banking services provided by, and debit card issued by, The Bancorp Bank or Stride Bank, N.A.; Members FDIC.

DISCO is the leading provider of ediscovery solutions for law firms, corporations, and government agencies. With technology and services that automate and simplify complex and error-prone tasks that distract from practicing law, DISCO empowers lawyers and their teams to effectively manage discovery processes. DISCO is the ediscovery choice of leading U.S. law firms including litigation boutiques and AmLaw, Fortune 500 companies, as well as government agencies around the world. Ready for an ediscovery upgrade? Request a demo at demo.csdisco.com.

Founded in 2013, DoorDash is a San Francisco-based technology company passionate about transforming local businesses and dedicated to empowering new ways of working, earning, and living. Today, DoorDash connects customers with their favorite local and national businesses in more than 1,000 cities across the United States and Canada. By building intelligent, last-mile delivery technology for local cities, DoorDash aims to connect people with the things they care about — one dash at a time.

Intercom is the world’s first customer platform helping internet businesses accelerate growth. Thanks to the internet, the way people communicate is drastically different than it was 10, even 5 years ago. Messengers like WhatsApp have become the preferred mode of communication in every aspect of consumers’ lives, and now that switch is happening with businesses too. Intercom builds a suite of messaging-first products that all modern internet businesses can use to accelerate growth across the customer lifecycle- from acquisition, to engagement, and support. Today more than 25,000 businesses, including New Relic, Sotheby’s, and Shopify, use Intercom to connect with a billion unique people worldwide.

Kasa Living, Inc. is a real estate technology company that is building a global accommodations brand. The company partners with owners of multifamily and boutique hospitality properties, transforming underutilized real estate into stylishly-furnished, professionally managed units that cater to business and leisure travelers seeking trustworthy and comfortable accommodations. Kasa was founded in 2016 by a team that includes technology and real estate professionals who previously drove growth at firms, including Airbnb, KKR, and Apollo. The company is headquartered in San Francisco.

Honor, a home care company, is the founder of the Honor Care Network, a pioneering national network of home care providers. Honor is the first company ever to bring scalable workforce management and technology expertise together with the high-touch, personalized care of local homegrown care agencies. Working with Care Network Partners, Honor helps older adults live safely and comfortably in their own home by enabling reliable, transparent, high-quality care. Founded in 2014, Honor is now one of the fastest-growing, non-medical home care companies in the U.S., currently providing care to families in California, Arizona, Texas, and New Mexico.

DriveWealth is a financial technology firm pioneering embedded finance, fractional investing in US equities, and API-driven brokerage infrastructure. We’ve built patent-pending technology to fractionalize US equities and were the first to receive a license to do so in 2015. We help banks, fintechs, RIAs, and global brands build investing experiences in 153 countries. Some of our partners are Revolut, Hatch, MoneyLion, Stake, and Avenue.