Our industry experts identified the leading software development companies in Illinois that build high-performance solutions. Explore the best developers in the table below and use the filter to choose the best fir for your budget and needs.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

Designli
VerifiedVerified by the DesignRush team for authenticity and credibility.AI LeaderRecognized for strong visibility across AI-powered search and answer engines.+1Award WinnerRecipient of a Best Design Award for outstanding work.Build software people actually pay for.
Designli builds mobile apps, web apps, and SaaS platforms in React Native for clients like Michelin, Hearst, and Goodwill, with 200+ product launches. Its development team uses AI-empowered engineering. The software development agency is best for businesses needing a dedicated, full-time product team...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- Web Development
- Web Design
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $85/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 17 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDesignli Services
Data sourced from the agency's DesignRush profileGoodwill Earthlink Rotary State of South Carolina Secur.Space Grappos Michelin Accel Entertainment Millennium Parking Garages
Designli Reviews & Testimonials

Mobile App Development Review from John Laporte
Designli helped us define the requirements, features, and user experience for an app for our motorcycle organization. They produced technical documentation and a clickable prototype covering navigation, member tools, and safety features. They were responsive, delivered on time every time, and turned our broad concepts into something people could actually click through. The prototype got our stakeholders aligned, earned internal approval, and set us up for engineering, and working out design questions early should save us rework later.

Mobile App Development Review from Brandi Heffner
Designli built our SaaS product from scratch, using AI to speed up development, with AWS and Cloudflare in the stack, and they also handle our hosting and maintenance. We had a working MVP in just 30 days and have kept adding features since. In the first 60 days they went beyond what we expected, largely because they took the time to really learn our business and our market. Coordination through Basecamp and Google Meet has kept everything organized.

Mobile App Development Review from Thomas Simmons
Designli took over app development and marketing for our driving school, with the goal of building a product we could eventually offer to other schools. Within two and a half months, the app was up and running in our own school. Their project management is excellent, and they push back constructively, thinking through what we actually need instead of building every request as-is.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Unico Connect
VerifiedVerified by the DesignRush team for authenticity and credibility.Award WinnerRecipient of a Best Design Award for outstanding work.Your AI-Native Technology Partner
Unico Connect is a custom software development firm empowering startups and enterprises to build scalable, future-proof apps. Leveraging NoCode, AI, and full-stack expertise, we deliver fast, innovative solutions that drive growth across industries worldwide. Let’s build your next breakthrough together...
Top Services:
- AI Development
- Mobile App Development
- Software Development
- Web Development
- Staff Augmentation
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 14 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsUnico Connect Services
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Unico Connect Reviews & Testimonials

Software Development Review from Jacques Antikadjian
Unico Connect has been an exceptional development partner in helping us build PLCY, our AI governance and runtime policy-enforcement platform. From the beginning, their team took the time to understand not only what we wanted to build, but also the security architecture, governance requirements, workflows, and enterprise use cases behind the product. What impressed me most was their ability to take our security designs and technical workflows and translate them into a functional, scalable platform. PLCY requires much more than traditional software development it involves AI governance, policy enforcement, data protection, model and regional routing, auditability, and enterprise-grade security controls. UnicoConnect approached these requirements thoughtfully and worked closely with us to turn complex concepts into a real product. Their team has been responsive, collaborative, technically capable, and willing to work through difficult architectural and product challenges with us. They have treated the engagement like a true partnership rather than simply a development project. As a founder, it is extremely valuable to have a technology partner that understands the vision while also being able to execute on the details. Unico Connect has played an important role in helping bring PLCY from architecture and security designs into a working AI governance platform. I would highly recommend UnicoConnect to companies building sophisticated SaaS, AI, security, or enterprise software products.

Software Development Review from Daniel Gonsenhauser
Unico built our Order Management System across two operating companies and integrated it with Bringg for dispatch. The hard part wasn't the software, it was the business logic we run on-demand, multi-stop, scheduled contract, and distribution work across multiple markets, and the pricing exceptions that used to live in our people's heads are now configured in the system. Order intake, dispatch, commissions and billing are one flow instead of three, and our team reviews work rather than reconstructing it. What set Unico apart was their willingness to learn how a courier and freight business actually operates instead of fitting us to a template. We worked with a dedicated team on the Unico side - a project lead, developers, and QA with direct access throughout rather than everything routed through an account manager. We've engaged them for phase two.

Web Development Review from Shifa Sutar
We had a great experience working with Unico team for our Google Workspace migration and account setup. The entire process was smooth and well-managed. The team was extremely supportive, responsive, and guided us at every step, making what could have been a complex transition feel effortless. Highly recommend their services.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsPromising customized mobile and web app solutions
Simpalm builds mobile, web, and AI apps using React Native, Flutter, and Node.js, with clients like University of Maryland and AudioBooksNow. The software development agency serves startups, nonprofits, and government. It’s best for businesses needing a US-based mobile and web development partner...
Top Services:
- Mobile App Development
- Web Development
- Web Design
- UI/UX Design
- eCommerce Development
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- Under 49
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 22 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSimpalm Services
Data sourced from the agency's DesignRush profileTaptin AudiobookNow Forte Payment System GWU ASRA App Window Nation Winematch Connect Pepsi Inc Blanco KonnectApp
Simpalm Reviews & Testimonials

Mobile App Development Review from Guiulianna Cespedes
Our company needed an Android app that could support a mental health platform in a way that felt calm, easy to use, and dependable for daily users. We hired Simpalm to build that product in Kotlin and help us move from concept into something real customers could use. For us, trust and simplicity mattered more than packing in too many features.They took a fairly hands-on role, which was helpful because we were still making product decisions as the project moved. Some weeks I was deeply involved reviewing screens, and other weeks they pushed things forward on their own. That balance worked well. They would usually come back with two or three options instead of just asking what we wanted.We did hit one rough patch around notifications where the first version didn’t behave the way we expected, so that had to be revisited. They fixed it without making the process difficult.The finished app runs smoothly, feels organized, and gave us a much stronger mobile presence on Android. Most importantly, early users found it approachable rather than overwhelming, which was exactly what we wanted.
Mobile App Development Review from Amanda Chalofsky
My experience with Simpalm was very good. They made a full prototype of our neuro-wellness app so we could show partners and investors what our system looks like. It matched our brand and showed the flow in a simple way. Their communication was steady, they stayed on time, and they explained things clearly. The prototype helped people understand our idea fast, and it moved our project forward. I felt supported the whole time.

Mobile App Development Review from Matt Rudnick
Working with Simpalm has been a really positive experience. We hired them to handle the frontend development of our mobile app for iOS and Android, while our backend was already in place. From the start, their team communicated clearly, stayed organized, and met every deadline we set. They were flexible when we added new features, and their designer’s input really helped improve the look and usability of the app. I appreciated how reliable and easy they were to work with having a U.S.-based team made communication smooth and fast.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsYour Technology Partner
Our commitment is to SDLC Corp’s excellence in delivering transformative Software Development solutions. Our extensive expertise ensures success in even the most complex mobile, web, AI, and blockchain projects. We blend innovation with precision to drive growth and empower businesses worldwide...
Top Services:
- Software Development
- Mobile App Development
- Web Development
- AI Development
- Blockchain
- Show more
- Location
- Batavia, Illinois
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 53 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSDLC Corp Services
Data sourced from the agency's DesignRush profileFujitsu Rubix EduBull Giftcast Flynk Early Salary PorchLight Group Windermere Saas Bazaar Dominos
SDLC Corp Reviews & Testimonials

Odoo Review from Navrina Singh
As a growing business in Australia, our internal systems had become difficult to manage. We partnered with SDLC CORP for Odoo development, and their team took the time to understand our workflows and bottlenecks. They automated repeated tasks, streamlined our processes, and kept communication clear at every step. This was not a one-time quick fix; it continues to improve how we run the business every day.

Software Development Review from Robert Khachatryan
Working with SDLC Corp on IoT supply chain project has helped us at Freight Right Global Logistics. Their smart tracking and fleet management have helped us work faster by reducing delays and improving delivery routes. The temperature sensors for perishables gave us peace of mind, keeping our products safe and fresh. Overall, their expertise and smooth support made the whole process easy and stress-free!

Web Design Review from Ritujoy Narayan Chowdhury
We partnered with SDLC Corp to explore automating client services like reporting and task tracking. They provided a clear and detailed roadmap for building software tailored to our needs, complete with features like client dashboards and real-time analytics. Their project management was seamless, and their ability to combine technical know-how with industry insight was outstanding. Their work has set us up to optimize our workflows and better serve our clients. We couldnt be more impressed with the collaboration!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsRuby on Rails Development Company
Rubyroid Labs is a software development company specializing in Ruby on Rails, React Native and UX/UI Design. since 2013. We architect end-to-end services for both large enterprises (Mastercard, Volvo, Toyota) and leading startups from Y Combinator and Seedcamp...
Top Services:
- Product Design
- Software Development
- Mobile App Development
- Web Design
- Web Development
- Show more
- Location
- Springfield, Illinois
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 27 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsRubyroid Labs Services
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Rubyroid Labs Reviews & Testimonials

Ruby on Rails Review from Michael Peter Craies
Rubyroid Labs joined our team at a time when we were starved for Ruby on Rails devs. After a very short while, the assigned team members were taking on more and more complex code and helped bolster our development outputs. Before they joined us, our average bug response time was over 2 weeks, a value that they have helped us reduce to under 8 days, with urgent tickets being resolved within a few hours. There teams' response times regarding staff movements (e.g. replacing one of our assigned devs) as well as our queries are impressive. I would definitely recommend them to any company looking to outsource their development needs.

Software Development Review from Anonymous
Rubyroid Labs conducted a code audit for our legaltech workflow automation platform. They identified several critical areas for improvement and provided actionable recommendations. Our internal development team has implemented their suggestions, which has led to measurable improvements in platform quality.

Software Development Review from Anonymous
Rubyroid Labs provided excellent Ruby on Rails, React, and React Native resources for our data-driven application. The team successfully implemented features for real-time statistics, logistics management, and advanced data filtering. They delivered everything we requested, and the team was highly motivated, engaged, and genuinely interested in our product's success. Daily communication was smooth and effective.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsShaping the Future of Technology
When enterprise clients need scalable custom platforms, Plego builds web, mobile, and AI solutions using React, Node.js, Python, and .Net. Founded in 2002 and headquartered in Chicago, the firm has delivered software for Apple TV+, NBCUniversal, Google, Fitbit, and Berkshire Hathaway across eCommerce, ERP...
Top Services:
- Web Development
- eCommerce Development
- Software Development
- Web Design
- AI Development
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- Under 49
- Average Hourly Rate
- $105/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 13 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsPlego Services
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Plego Reviews & Testimonials

Web Development Review from Undisclosed
Plego team is extremely knowledgeable and helpful, it is a delight to work with them. If you’re in search of a reliable, innovative company, look no further than Plego. They took the time to understand our specific needs and provided a tailor-made solution that greatly improved our website. We highly recommend this business.
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Software Development Review from Theodore Patestos
We’ve worked with Saad and his team for close to a year now. They’ve been diligent throughout the process, responsive and communicative. They came in mid-stream to save the project from another development team that didn’t live up to their commitments. I would highly recommend Plego to any company looking to see things move forward on a stalled project or looking for a team that will jump in and start to get things done.

Web Development Review from Tyler Tomlinson
Saad and his team were a great group of people to work with. Our scenario was probably unique to this group, and they tackled the project with a full head of steam and with no hesitation. It has been a pleasure working alongside his team.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsNext-Gen Apps for Next-Gen User
Passionate about crafting innovative digital solutions, TechGropse is a leading technology firm that specializes in mobile app development, web development, and emerging technologies. Our commitment to excellence, creativity, and client satisfaction sets us apart...
Top Services:
- Mobile App Development
- Web Development
- Software Development
- AI Development
- IoT
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 23 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTech Gropse Services
Data sourced from the agency's DesignRush profileWASPHA BBT Ajerli Stages Commercial Company
Tech Gropse Reviews & Testimonials

Web Development Review from Uwesh Malik
I am thrilled with the exceptional service provided for our travel website development. The team demonstrated incredible expertise and creativity, delivering a user-friendly, visually stunning, and highly functional website tailored to our business needs. Their attention to detail, seamless communication, and on-time delivery truly impressed us.

eCommerce Development Review from Piyush Handa
In my review of TechGropse Pvt. Ltd., I highlighted their exceptional performance in developing the Pro Classy website. Their expertise in creating a responsive and user-friendly site stood out, showcasing their technical skills and understanding of our needs. I appreciated their efficient project management, which ensured that all deadlines were met and deliverables were on time. The value for money was clear, as the quality of the work surpassed expectations. Overall, the smooth collaboration and effective results led to a highly positive experience, making TechGropse a recommended choice for web development projects.

Web Development Review from Mustakim Saifi
I recently had the pleasure of working with TechGropse for our company's website development, and I must say, they exceeded our expectations. From the very beginning, the team was highly professional. Their expertise in web development is truly impressive. If you're looking for a reliable and skilled web development partner, I highly recommend TechGropse. They are a team of true professionals who are committed to delivering top-notch results. We look forward to working with them again on future projects!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsUnderstand your customers. Design & build better technology.
We're a digital experience agency with a fierce commitment to keeping people at the center of our work...
Top Services:
- UI/UX Design
- Product Design
- Digital Services
- Digital Strategy
- Business Consulting
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- Under 49
- Average Hourly Rate
- $200/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsHighland Services
Data sourced from the agency's DesignRush profileThrivent Financial Morton Arboretum Make-A-Wish Foundation Goodwill Industries McGraw-Hill RefugeeOne Creative Group Dow Chemical Savvas Harvard University
Highland Reviews & Testimonials

UI/UX Design Review from Audrey Thomas
Highland is a great partner. The sought to deeply understand our product, customers, and pain points and built a number of forward looking opportunities for us in addition to the tight scope of our project. Proactive, thoughtful, responsive, and flexible. We are a small team and found lots of value in working with Highland to get our UX refresh project up and running.

UI/UX Design Review from ✨ Liz Pisney ✨
We recently partnered with Highland on research and prototypes for a new information architecture on a volunteer resources site for our Chapter leaders. Having over 3000 volunteers around the globe can introduce a lot of nuance and complexity to research and design processes. The team at Highland handled it all skillfully - focusing on how to deliver the most clarity and usability to our audience. 10 out of 10, I would recommend working with the Highland team!

Webflow Review from Lee Wiensch, CAE, CFRE
We had a great experience working with the team at Highland to develop a new website for the Thoracic Surgery Foundation, a charitable organization aimed at advancing heart and lung health for all. Highland worked with us to re-imagine a dated website with limited functionality, and developed a a gorgeous new site that beautifully reflects the vitality of the organization. We anticipate that our award applicants, donors, surgeons and grateful patients will be able to easily navigate the new site and have a much-improved user experience. Jeff Blanchard and his team were exceptionally good listeners, and worked hard to create solutions for our complicated awards program. They provided good training to our team throughout the process so that we have been able to keep things updated and easily make changes now that the site has launched. I am grateful for their patience and very quick turnaround as we juggled a new strategic plan and new branding, all at the time of the website creation. I have been continually impressed with the expertise and the innovation that Highland brings to a project like ours. It was a pleasure to launch this site -- on time and on budget -- with their excellent work and support.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTurning Ideas Into Apps | Your Vision, Our Innovation
Profusion Systems is a leading mobile application and software development agency that turns creative concepts into innovative, user-friendly solutions. Founded in 2012, the agency specializes in custom software, cloud migration, and chatbot development, catering to mid and large-sized businesses. With a...
Top Services:
- Software Development
- Cloud Consulting
- Mobile App Development
- Web Development
- Software Testing
- Show more
- Location
- Downers Grove, Illinois
- Number of Employees
- Under 49
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsProfusion Systems Services
Data sourced from the agency's DesignRush profileFintech Industry Not for profit Industry Food Industry
Profusion Systems Reviews & Testimonials
Chirag Shah's Review Sourced from Google
Working here has been a really positive experience for me. I’ve got the chance to learn new things, take ownership of my work, and collaborate with some genuinely supportive colleagues. The environment is professional yet friendly, and I feel like my ideas are valued. Of course, like any company there are challenges, but overall it has helped me grow both personally and professionally.
Ajay Nagwan's Review Sourced from Google
I am currently working at Profusion, and it's been a great experience so far. The work environment is positive and collaborative, and I’ve had the opportunity to learn and grow professionally. The team is supportive, and my manager/boss is always approachable and encouraging, which makes a big difference. I also appreciate the company’s focus on quality, innovation, and continuous improvement. It’s a great place to build a strong career in the IT industry.
SUTHAR JIGAR's Review Sourced from Google
Profusion Systems is a great place to work with a positive and collaborative environment.The company provides excellent learning opportunities and supports career growth.and work-life balance is well maintained.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWe Aim for Innovation
Digipie Technologies is a multinational software development firm specializing in website design, Mobile application development, Custom software development, maintenance, and digital marketing. We value creative thinking and innovative solutions, as well as customer-focused service and user-friendly design...
Top Services:
- Web Development
- Web Design
- eCommerce Development
- Mobile App Development
- Software Development
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDigipie technologies Services
Data sourced from the agency's DesignRush profileNext Health&Fitness MAW Meals Ardee Services
Digipie technologies Reviews & Testimonials
Michael Watson's Review Sourced from Google
Starting my business again I realized I needed to comeback more competitive. I was looking for app development. DigiPie Technologies walked me through the process, providing me insight that I had never imagined. The communication is tremendous. If I had an issue or question during the process, a conference call was scheduled within 24 hours. They work hard for the project. The project is almost complete, and I swear they are as excited as I am to roll it out. DigiPie Technologies are here to stay. I have more projects coming up and this is the company I will be working with.
We Are Hobbii LLC's Review Sourced from Google
We love DigiPie! We had a great experience working with them to develop our application and we will definitely be coming back to them in the future for more developments and updates! Great company that is easy to work with and has very fast response times!
Alex King's Review Sourced from Google
Digi Technologies have been fantastic for us! We have been extremely satisfied with their work and the turnaround that have on our mobile app. They have been nothing but cooperative and we feel as they will never back down from a task!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTop Sitecore Solutions Provider
We embrace digital transformation through customer centric tactical results unleashing as a digital innovation agency.Sourceved is providing enterprise cms based solution which includes Sitecore , Umbraco , EpiServer , SiteFinity , Drupal and WordPress for all industries...
Top Services:
- Web Development
- Mobile App Development
- Software Development
- Software Testing
- AI Development
- Show more
- Location
- Naperville, Illinois
- Number of Employees
- Under 49
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSourceved Technologies Pvt Ltd. Services
Data sourced from the agency's DesignRush profileToastmasters International Thrillworks Avista VirtusaPolaris Icreon 3AG Solutions Sonata Software Vantage Travel Driven Inc FastWebMedia
Sourceved Technologies Pvt Ltd. Reviews & Testimonials
umang shah's Review Sourced from Google
Sourceved has been an incredible partner for our IT needs. Their team is not only highly skilled but also incredibly responsive and committed to delivering quality solutions.They've consistently exceeded our expectations. I have no hesitation in recommending Sourceved to anyone seeking reliable and professional IT services.
Nitin Patel's Review Sourced from Google
I've had an exceptional experience working with Sourceved. Their team is highly professional and dedicated. They provided us with top-notch solutions for our software development needs. Their expertise in Sitecore has been invaluable. The quality of their work and their commitment to meeting deadlines is truly impressive. I highly recommend Sourceved for any IT or software development projects.
rutvi Parikh's Review Sourced from Google
I have been joined here as a trainee and they started giving me training from basic level to high level. and very positive and supportive staff. I learned lots of things from here. best company for freshers to starting their IT career from here ..
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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