Top Software Development Companies in Illinois
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List of the Best Software Development Agencies and Software Developers in Illinois
Certain agencies may be featured through sponsored placements. Rankings and SF Scores remain unbiased and are based solely on our evaluation methodology.
111 Companies
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Illinois
11
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Empowering businesses with reliable, scalable, and innovative IT Solutions.
At JJC Systems, we make technology reliable, scalable, and cost-effective. Our journey is driven by a team of passionate tech experts with deep experience and an unwavering commitment to innovation. We use technology to solve real business challenges. Whether it’s finding the right solution from a sea of vendors or implementing cutting-edge systems, we’re here to make the complex simple. Our clients call us “Innovative” because we don’t just understand technology—we understand how it drives success. From Microsoft implementations to network management, cybersecurity, and IT infrastructure, we ensure your systems work seamlessly to support your goals. Proudly offering end-to-end IT solutions!
View JJC Systems Profile$100-$149/hr
$1,000 - $10,000
250 - 500
Rolling Meadows, USA
11
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Trusted Partner Microsoft 365 Solutions for Digital Success
Desire InfoWeb is an innovative IT service provider offering complete technology solutions that enhance business performance and deliver maximum value. Based in Ahmedabad, India, and serving customers worldwide, we specialize in Microsoft 365, SharePoint Consulting Services, custom software development, mobile and web app design, data migration and administration, Power BI, analytics, cloud strategy, and AI-powered automation. Our expertise spans multiple platforms including Azure, .NET, PowerApps, Power Automate, Office 365, Microsoft Teams, and Dynamics 365 helping businesses unlock digital agility and strengthen team collaboration.
View Desire InfoWeb Pvt. Ltd ProfileUndisclosed/hr
$1,000+
10 - 49
Elgin, USA
6
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
simpler, faster, and more customized than ever before
Ticomix is a U.S.-based software development company helping ambitious organizations build modern, intelligent applications that drive measurable business results. With 25+ years of experience, we specialize in legacy system modernization, AI integration, and custom software engineering designed for long-term scalability and performance. We are experts in migrating legacy technologies such as FoxPro, VB6, and Delphi into secure, cloud-ready platforms, ensuring continuity while unlocking new capabilities. Our team also designs AI agents and intelligent automation solutions that streamline workflows and enhance decision-making. From greenfield development to complex system upgrades, we deliver fixed-fee projects through a transparent, collaborative process that keeps stakeholders informed and in control. At Ticomix, we combine technical depth with practical business insight to transform outdated systems into future-ready digital solutions—helping companies innovate confidently and compete at scale.
View Ticomix Profile$150-$199/hr
$25,000+
10 - 49
Loves Park, USA
6
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Digital Product Agency
Tandem is a software product engineering and UX consultancy focused on MVP development, design proof of concepts, and enterprise digital product innovation services. The company helps startups and enterprises validate software ideas through user research, interactive prototypes, and scalable cloud-native engineering methodologies. Tandem supports healthcare, fintech, education, and SaaS sectors with mobile application development, product strategy consulting, and digital transformation expertise. Their multidisciplinary teams emphasize rapid experimentation, technical scalability, and customer-focused innovation to reduce development risks and accelerate product delivery timelines.
View Tandem Profile$100-$149/hr
$25,000+
50 - 249
Chicago, USA
5
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Success in Motion
Aleysian is a digital transformation and cloud consulting firm helping organizations adopt, integrate, and optimize modern technology ecosystems. We partner with leading platforms such as Salesforce and Salsify to deliver scalable, data-driven solutions that reduce risk and accelerate time-to-value. Our team of experienced consultants provides end-to-end services—from executive strategy and roadmap planning to technical architecture, implementation, integration, and ongoing support. We focus on aligning technology with business goals to improve efficiency, enhance customer experiences, and drive measurable growth. With a hands-on, results-oriented approach, Aleysian enables businesses to confidently navigate complex cloud transformations and build future-ready digital infrastructures.
View Aleysian ProfileN/A
$1,000+
50 - 249
Chicago, USA
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
The Infrastructure Layer
iSimplifyMe is a Chicago-based full-service AI marketing agency and platform builder. Founded in 2011, it has evolved from a boutique web studio into an 11-service Digital Renaissance provider offering AEO Infrastructure, SEO, AI-Native Web Design, CRM Architecture, and more. Serving enterprise clients across North America and Asia-Pacific.
View iSimplifyMe Profile$200-$300/hr
$10,000+
2 - 9
Chicago, USA
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
We build products so our partners can build companies
FarShore Partners (FSP) is a full-service custom software and product development agency helping startups, entrepreneurs, and Fortune 500 companies bring ideas to market. With 15+ years of experience, we deliver end-to-end solutions—from concept and design to development and launch—focusing on scalable, user-centric digital products. Headquartered in Chicago, our global team of 130+ experts across the U.S., Croatia, and India enables agile delivery, technical excellence, and long-term partnership for business growth.
View FarShore Profile$50-$99/hr
$25,000+
50 - 249
Chicago, USA
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
We help you swiftly deliver your next app
Bitovi is a digital product consulting firm specializing in JavaScript development, UX design, and full-stack application delivery. Known for their collaborative, validation-driven approach, the team pairs clients with specialists whose expertise directly matches project needs. Bitovi has delivered major digital products for brands including Yum! Brands—building a global ecommerce platform across 50,000 locations in 145 countries—and KFC, whose app won a Webby People's Voice Award. The agency blends open-source contributions with hands-on consulting and training.
View Bitovi Profile$150-$199/hr
$5,000+
50 - 249
Libertyville, USA
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Born Digital. Built for What's Next
Sandstorm Design® is a data-driven digital agency specializing in UX strategy, research, and enterprise web development. With 4,400+ user interviews and usability studies conducted, we uncover actionable insights that help organizations unlock growth and make informed decisions. Our expertise spans brand strategy, inclusive and accessible design, and UX-focused digital experiences. We develop scalable, high-performance websites using platforms like Drupal (Acquia), WordPress, and Kentico CMS. By combining research, analytics, and creative thinking, we transform complex challenges into measurable outcomes—helping businesses improve user engagement, optimize performance, and achieve long-term digital success.
View Sandstorm Design Profile$150-$199/hr
$100,000+
10 - 49
Chicago, USA
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
We create software for the web
Chromatic is a web engineering agency specializing in building and optimizing high-performance digital ecosystems for complex, enterprise organizations. Our experienced technologists leverage deep open-source expertise to deliver scalable, secure, and future-ready content management solutions. We help businesses streamline workflows, modernize legacy systems, and execute seamless data migrations with minimal disruption. From improving site speed and performance to simplifying content operations, our solutions are designed to enhance efficiency and user experience. With a strong focus on reliability and client success, Chromatic transforms complex digital infrastructures into agile, optimized platforms that support long-term growth and measurable business outcomes.
View Chromatic Profile$150-$199/hr
$50,000+
10 - 49
Chicago, USA
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Building smarter web solutions since 1996
Imaginary Landscape, operating as Imagescape, is a Chicago-based web development and digital strategy agency with over 25 years of experience building robust, scalable web solutions. The agency specializes in custom web application development, Drupal and WordPress development, API integrations, and digital strategy consulting. Imagescape serves clients in healthcare, education, nonprofits, and corporate sectors, delivering technology solutions that are secure, accessible, and maintainable. Known for their technical depth and long-standing client relationships, Imagescape combines senior engineering talent with a strategic approach to help organizations maximize the value of their digital investments.
View Imaginary Landscape Profile$100-$149/hr
$10,000+
10 - 49
Evanston, USA
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