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.
We help businesses in building Web, App, Software, and Adapting AI Solutions.
Probey Services builds websites and mobile apps on WordPress, Shopify, and Flutter, for clients like Lineage and Gunzilla Games. Its team of 320+ developers covers eCommerce, healthcare, and edtech across 30+ countries. Best fit for SMBs needing affordable development services...
Top Services:
- Mobile App Development
- Software Development
- Web Development
- Web Design
- WordPress Website Design
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $10/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 94 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsProbey Services Services
Data sourced from the agency's DesignRush profileBartisans Samyakk 30 Days Fitness Isharya The Estate Residences VegenMart Fresh Menu Application PRAO Fashion Jewellery Audentia Space Wings of Change
Probey Services Reviews & Testimonials

Web Development Review from Rajat Sinh
Probey transformed our outdated website into a modern, high-performing platform by understanding our business goals and delivering the right solutions. Since the launch, we have seen significant growth in website traffic, lead conversions, and operational efficiency through their backend integrations. Impressed with their expertise and quality of work, we also trusted Probey with our CRM development project as well. Thank you to the entire Probey Services team for your professionalism and support.

Web Design Review from Roshan
This is Roshan, CEO at NanoTherapX. Working with Probey Services for our CRM Development. What stood out most was their stability, consistency, reliability, and a smooth implementation. The CRM has streamlined our client management, improved team efficiency, and helped us manage operations more effectively. Since its implementation, we've seen better productivity and consistent business growth. I highly recommend Probey Services UK to any business looking for a reliable technology partner.

Mobile App Development Review from Tejaswini
What stands out most about Probey Services is their discipline-no missed calls, no vague timelines, and no surprises. They built our mobile app with a level of professionalism that made us feel like a priority throughout the project. The delivery was on schedule, the code quality was excellent, and the final product met high standards. Since the app launch, we've seen consistent business growth, and managing customer orders has become much more efficient. I highly recommend Probey Services UK to any business looking for a dependable technology partner.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWhere Exceptional Apps Are Just The Beginning
BitsWits builds iOS, Android, Flutter, and React Native apps alongside AI and blockchain solutions, with a four-week delivery guarantee. Its work spans healthcare, fintech, and eCommerce, making the software development company suitable for businesses needing fast, affordable mobile app development...
Top Services:
- Mobile App Development
- Software Development
- VR/AR
- Blockchain
- AI Development
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 12 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsBitsWits Services
Data sourced from the agency's DesignRush profileFitNow Wisu Soul Scribe Grease Monkey Beats
BitsWits Reviews & Testimonials

Mobile App Development Review from Sydney Malone
With the development of our Mobile App, BitsWits performed a fantastic job. Their team was quick to respond and produced a great application that runs smoothly on all platforms. We are quite happy with the result.

Mobile App Development Review from Benson Sung
They created a Mobile app for Medical services, and patient management has changed greatly as a result. The app works well with our current systems, is safe, and is simple to use. Their team produced a top-notch product on schedule while paying close attention to our unique requirements. We are really pleased with their work and heartily recommend BitsWits to anyone in need of app development services.

Mobile App Development Review from Steve Garry
The outcomes of our collaboration with BitsWits to develop an Online Food delivery app were outstanding. Real-time tracking is integrated into the app, which makes it easy to use and has significantly enhanced our customer support. Their development staff was quick to respond and took care of all of our requests. We couldn't be more pleased with the result!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTransform Fast: Your App on iOS & Android Awaits!
KodersPedia is a Palo Alto, California-based mobile app development company specializing in end-to-end digital solutions. Founded in 2020, the company offers services including mobile app development, game app development, website development, and staff augmentation. KodersPedia caters to a diverse range of...
Top Services:
- Web Design
- Web Development
- Mobile App Development
- Software Development
- Logo Design
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 13 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsKoderspedia Services
Data sourced from the agency's DesignRush profileThe ALS Guide Accenture Stadis EventBuddy Teachers DIrect Munich Re Comcast ViacomCBS intel Coca*Cola
Koderspedia Reviews & Testimonials

Web Development Review from Jason Troyan
We discovered Koderspedia through an online search, and it turned out to be one of the best decisions we've made for our real estate company's web development!The team at Koderspedia, particularly Peter, demonstrated exceptional professionalism, expertise, and dedication to delivering top-notch results. Peter's communication skills are outstanding- he was always available, responsive, and ensured we were on the same page throughout the project.The final product exceeded our expectations- a stunning, user-friendly, and highly functional website that perfectly represents our brand. Koderspedia's attention to detail, creativity, and technical prowess are truly impressive.We wholeheartedly recommend their services and appreciate the fantastic work they've done for us!Thank you, Peter and the Koderspedia team!

Web Design Review from Nina Di Carlo
Koderspedia' work was easy to implement, and we saw a 95% increase in sales and traffic after the site's launch. The Peter and the team communicated well and provided constant updates throughout. Their web design expertise and strong project ownership made for a fruitful engagement.

Web Development Review from Betty Rodrigues
Koderspedia delivered an exceptional web app for Gamesoft Montreal Company! Their team, led by Peter, showcased outstanding expertise and communication skills. Peter's prompt responses and clear updates ensured a seamless project experience. The final product exceeded our expectations- visually stunning, functional, and secure. Highly recommend Kordespedia for web app development!
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
Data sourced from the agency's DesignRush profileDrone Base Volvo Sail Croatia Big Purple Dot Day one credit FSP Festival (management software) Let Know Volition Layer Cake Presli
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 ReviewsTurning App Ideas Into App Businesses Since 2007
We don't just build apps. We build app businesses that actually succeed, where 80% fail within their first year. For 17 years we've perfected what actually works, having launched 300+ successful apps, including one that hit 4+ million downloads in just 60 days with sub-$3 user acquisition...
Top Services:
- Mobile App Development
- Web Development
- Software Development
- eCommerce Development
- UI/UX Design
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- 100 - 249
- Portfolios Count
- 27 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDedicated Developers Services
Data sourced from the agency's DesignRush profileAudvisor Mobile Apps Parsons Roofing ProHealth
Dedicated Developers Reviews & Testimonials

Mobile App Development Review from Robert Miller
I lost over $125,000 to developers who couldn't deliver so when I came to Dedicated Developers, I wasn't just looking for a dev shop, I was looking for a reason to trust again. They earned it fast. Their Idea To App Blueprint took everything scattered in my head and turned it into a clear, structured roadmap that actually made sense. Within six months, they delivered a sleek, fully functional MVP for our AI-powered homework assistant something a previous team couldn't pull off in over a year. What really set them apart was how early they brought in their ASO experts not as an afterthought, but from day one because they weren't just thinking about building an app, they were thinking about setting us up for a strong launch.Every deadline was met. Every question was answered. Every milestone felt like a shared win. As we approach launch, I can already see the difference a truly invested team makes the foundation is solid, the product is polished, and we're going to market with confidence we never had before. Dedicated Developers didn't treat this like a contract they treated it like a mission. After everything we went through before finding them, that meant everything. If you're serious about bringing your app idea to life and you're done gambling on the wrong team, this is the partnership that will change the trajectory of your product.

Mobile App Development Review from Ben Connors
As CEO of a relationship-focused mobile app company, I partnered with Dedicated Developers to build a dating platform centered on meaningful, long-term connections not casual swiping. I needed a true full-cycle partner, and they delivered. Before development began, they invested time in understanding the vision and created detailed product blueprints. They asked thoughtful questions, challenged assumptions, and scoped each phase carefully, ensuring smooth execution as the platform expanded. Their cross-functional team project manager, developer, UI/UX designer, QA specialist, and app store marketing expert consistently delivered milestones on time and handled complex feature requests with structure and clarity.Since launch, the app has achieved steady download growth, strong engagement and retention, and positive app store ratings a testament to the scalable, high-quality foundation they built. What stood out most was their true product-level ownership. They didn't just execute specs they contributed ideas, challenged assumptions, and helped refine decisions I hadn't fully considered. Their detailed blueprinting before each phase created clarity and saved significant time in execution. They treated the platform like their own product, and that mindset made a meaningful difference throughout a long, evolving engagement.

Mobile App Development Review from Akshath Goyal
As an advisor to a fintech startup, I've seen firsthand how Dedicated Developers operate at a level beyond typical vendors they truly act as product partners. They successfully architected and built a complex mobile platform combining social media and secure peer-to-peer payments, handling everything from blueprinting to post-launch optimization with strong ownership and technical depth. The result speaks for itself: over 1 million downloads, well received 5-star reviews, and a scalable, compliance-ready foundation. Their disciplined execution, transparency, and long-term thinking make them a valuable partner for any ambitious fintech venture.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Doodle N Dash
VerifiedVerified by the DesignRush team for authenticity and credibility.Ignite Your Brand, Amplify Your Reach
Doodle N Dash is a creative design agency focused on transforming ideas into impactful digital experiences. By combining design, development, and marketing expertise, the agency helps brands build a strong online presence, stand out visually, and achieve measurable growth...
Top Services:
- Web Development
- Mobile App Development
- eCommerce Development
- WordPress Website Design
- Social Media Marketing
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDoodle N Dash Services
Data sourced from the agency's DesignRush profileAclaro AI ISendUScan Better Business Bureau OverDose Loop Coffee
Doodle N Dash Reviews & Testimonials

Web Design Review from Anonymous
I'm sure I was one of the more challenging customers Doodle N Dash has worked with. As a senior with limited tech experience, Mo had to guide me through a great deal. I'm certain I tested his patience on more than a few occasions, but he always answered my questions — sometimes more than once — and returned my calls and texts promptly.

Web Design Review from Anonymous
Shane and Mo were fantastic. They blended my ideas with their own professional design expertise into an incredible website - all at a very reasonable price. Communication was quick and updates were completed faster than I could review them.

Web Design Review from Anonymous
Mo and his development team came through for me in a pinch with some urgent development work. The turnaround was incredibly fast and the team executed everything with precision. Very grateful and will definitely work with them again.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsAI-Driven SEO & Web Solutions That Grow Businesses
SITE IT NOW is a leading AI-driven SEO and web development agency specializing in custom websites, mobile apps, digital marketing, and secure hosting. We help businesses rank higher, get discovered in AI search, generate more leads, and accelerate growth...
Top Services:
- Web Design
- Web Development
- Mobile App Development
- SEO
- eCommerce Development
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 6 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSITE IT NOW Services
Data sourced from the agency's DesignRush profileAviaChi South West Collision Arizona Tax Advisors Just For You Entertainments, LLC Bullitt Automotive
SITE IT NOW Reviews & Testimonials

Web Design Review from Barbara Schmal
I decided to go with Site It Now because they are in Chicago IL and I am in Florida. I wanted a website developer in the US. I checked out their website and was impressed with the information I found. I am very pleased with my website and especially pleased with how they communicate with their customers. A real phone call, text, email all day every day until the project was completed.

Web Design Review from Eddie Lebron
SITE IT NOW has been nothing but the best to us. We made the decision to go with them because of the primary reviews they had but they have surpassed our expectation with the amount of Awesome customer services they have provided our company. Richard has been so attentive to us. He is so responsible in keeping us updated throughout the whole process. We feel we gained not only good service with them but a friendship. We definitely recommend site it now. They go above and beyond your expectations

WordPress Website Design Review from Eric Skaff
very responsive and easy to work with!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsDriven by data. Informed by insight. Trademarked by craft.
At Fusion92, we live for the stuff that nobody else can solve. With an eye toward true innovation, we give answers to the unanswerable. That means first of its kind media, creative, data and technology. Ideas that are data fueled and insight driven...
Top Services:
- Digital Marketing
- Social Media Marketing
- Advertising
- Video Marketing
- PPC
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $160/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsFusion92 Services
Data sourced from the agency's DesignRush profileH&R Block Carl Buddig & CO. Fiserv AJ Gallagher Cboe Pathway Vet Alliance Navistar FTSE Russell OIC Zurich
Fusion92 Reviews & Testimonials
Eric Storck's Review Sourced from Google
My company Weed Man of Vienna used this company for mailing services this past spring. We received terrible service that was riddled with errors. To make matters worse they lost my payment. When I sent another they cashed both payments and are now refusing to send me back what is owed to me.
Mikki Sharp's Review Sourced from Google
A technology and client-focused business transformation partner with an award-winning culture known for innovation and excellence.
Ariel Dubov's Review Sourced from Google
I highly recommend avoiding this company. Fusion92 recently absorbed the company I contracted, Conversion Fanatics. CF was hired to increase our conversion rate. After many months of "testing", and a lot of $$ later, they actually decreased our CVR substantially. I'm deeply unsatisfied with how they left my website -- it was teeming with glitches and errors that are considered low hanging fruit for a typical UX company. Go with a different company!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWeb Design Software Development & Digital Marketing.
Enterprise 360, we are a creative team specialize in creating results driven web and digital solutions from impressive websites, software and mobile app development, e-commerce, content management and branding solutions...
Top Services:
- Web Design
- WordPress Website Design
- Web Development
- eCommerce Development
- Digital Services
- Show more
- Location
- Schaumburg, Illinois
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsEnterprise 360 Solutions Services
Data sourced from the agency's DesignRush profileEntertainment Industry Media & Communications Industry Retail Industry
Turning Ideas Into Interactive Apps
AppCrops is a next-gen technology partner delivering end-to-end digital solutions for startups and enterprises. From interactive user-friendly iOS, Android or Custom Mobile applications to Web apps, ERP systems and custom software, we help transform ideas into high-performing digital products...
Top Services:
- Mobile App Development
- Web Development
- eCommerce Development
- Software Development
- Web Design
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAppCrops Services
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AppCrops Reviews & Testimonials
Nabula Warden's Review Sourced from Google
AppCrops built a CMS for us that easily integrated with our website. Easy to manage and flexible. It made content updates much simpler. Recommended group of developers 👍
Reverie Selah's Review Sourced from Google
We used AppCrops for web development services and the result exceeded expectations. The website is fast, modern, and aligns perfectly with our brand.
Hazel Lucas's Review Sourced from Google
We worked with AppCrops for mobile app development and had a great experience. The team was professional, responsive, and delivered a high-quality app for our business. Highly recommended for anyone looking for web or app development services.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsFrugalnova - Crafting Smarter Software, Apps, and Innovations for All Platforms!
Frugalnova is a leading software development company specializing in creating innovative solutions for businesses worldwide. We excel in mobile app development, iOS and Windows apps, web platforms, and cutting-edge technology solutions. Our expert team blends creativity and technical expertise to deliver...
Top Services:
- Software Development
- Mobile App Development
- eCommerce Development
- Web Development
- Web Design
- Show more
- Location
- Mount Vernon, Illinois
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- Under $1,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsFrugalnova Innovation Services
Data sourced from the agency's DesignRush profileDivine Beauty I Corp Skandha Media Services Pvt Ltd Winner software
Frugalnova Innovation Reviews & Testimonials
raj shenoy's Review Sourced from Google
Great mobile app development company. Excellent developers team with enormous experience on different vertical development and application projects. Projects are delivered well within the deadline.
ashish kha's Review Sourced from Google
Hi everyone ,I'm sharing my personal experience.I got selected in Android interview and they told u will get offer letter by coming monday and till that date hr is giving me false hope that we are giving offer letter they wasted my 1mnth and the hr sejal patel is fake,when u will call them for ur offer letter they block ur contact as my did
vidya zagde's Review Sourced from Google
Very dedicated staff, who work as a team to deliver challenging projects on time. I am Glad I was a part of the company and the staff working as a Intern. Thank you.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsLogic will take you from A to B, Imagination will take you Everywhere
Mind & Logic is a boutique application design and development shop specializing in web based custom solutions. From simple content based websites to full stack applications with complex backend integrations and data sources, Mind & Logic is a one stop shop for your app dev needs.Mind & Logic has extensive...
Top Services:
- eCommerce Development
- Mobile App Development
- Software Development
- Web Development
- WordPress Website Design
- Show more
- Location
- Naperville, Illinois
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMind & Logic Services
Data sourced from the agency's DesignRush profileWilson Sleek Technologies Metro Salon Suites Medigraytion RIA Credit Union Memorial Sloan Kettering Cancer Center Atkore DeMarini Thingworx Line Leader
Custom software for digital health and medtech
26bitz builds custom software for healthcare: patient apps, AI tools, embedded device software, cloud backends, and HL7/FHIR integrations. We work with clinics, medtech companies, digital health startups, and nonprofits...
Top Services:
- Software Development
- Mobile App Development
- AI Development
- IT Compliance Solution
- ERP Consulting
- Show more
- Location
- Arlington Heights, Illinois
- Number of Employees
- Under 49
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts26bitz - healthcare software development Services
Data sourced from the agency's DesignRush profileA physician-first platform (NDA) Telemedicine software (NDA) Dental App (NDA)
26bitz - healthcare software development Reviews & Testimonials
Parisa Pirooz's Review Sourced from Google
Our nonprofit had the pleasure of working with the founder and their team, and I truly cannot say enough good things. They are incredibly competent, organized, and thoughtful in their approach. On top of that, they’re a joy to work with! Warm, professional, and genuinely invested in understanding your vision. They took the time to listen, asked the right questions, and offered strategic next steps that helped move our work forward. Highly recommend. 10/10!
Hugo Cunha's Review Sourced from Google
I’ve known the founder for years and trust his team completely. Excellent service and communication. I can recommend this company without hesitation.
Hugo Tavares's Review Sourced from Google
I’ve known the founder for years and trust his team completely. Excellent service and communication. I can recommend this company without hesitation.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsYour Brand. Accelerated
99 MPH is a small web design and marketing studio in Naperville, Illinois, run by Robin, who spent 25 years in IT and engineering before starting it. We build fast, secure websites for small businesses and do the marketing that brings in customers: SEO, paid ads and social media. Prices are published, nothing...
Top Services:
- Web Development
- Social Media Marketing
- Web Design
- SEO
- AEO
- Show more
- Location
- Naperville, Illinois
- Number of Employees
- Under 49
- Average Hourly Rate
- $95/hr
- Minimal Budget
- Under $1,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts99 MPH Services
Data sourced from the agency's DesignRush profilepinnstrategies.com www.shaktiswarupa.com bitcritiq.com theslicklist.com
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