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.
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...
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Mobile App Development Review from Anonymous
Designli delivered a high-quality prototype on a tight timeline. The team was responsive to feedback, met every deadline, stayed within budget, and quickly adapted to requested changes. Their expertise in app design and development was evident throughout the project and left a strong impression.
AI UI/UX Design Review from Anonymous
Designli produced a complete, functional Figma prototype for our solution. They communicated clearly through virtual meetings and stood out for their strong process, gathering feedback from multiple stakeholders and delivering on schedule. Overall, we were very impressed with their work.
AI UI/UX Design Review from Anonymous
Designli delivered Figma wireframes that were both well-crafted and well-received by our team. The designs were clean, intuitive, and elegant, reflecting strong design intuition. Throughout the process, the team stayed organized, communicated clearly via Basecamp, and delivered everything on time.
Sketch delivers AI-enabled custom software and DevOps via a subscription model with two-week delivery cycles, citing zero missed deadlines. Its team serves Fortune 500 clients and is best suited for product teams needing a transparent, agile dev partner without long-term contracts...
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Monica's Review Sourced from Google
Amazing and talented people. I’ve worked for both client and agency side and can can say their partnership is amazing. They truly care about ongoing operations and not just ending it at a project level. Highly recommend! Message me if you want specifics.
John Andesilich's Review Sourced from Google
I own a marketing firm in Troy MO and I recently met with Calvin at Sketch Development Services to discuss a software development project I have been thinking about pursuing. He was very nice, easy to speak to and even though his field is a bit out of my knowledge base, he was able to explain things in a way that made perfect sense. I look forward to working with him and his team in the future and recommend anyone looking for a software or app development company to give them a try.
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...
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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.
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...
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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!
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...
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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!
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...
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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.
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...
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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.
We create digital products that streamline operations, grow your audience, and boost business success. Partnering with visionary brands, we transform ideas into impactful solutions using innovative design and technology. Discover how our Software Development expertise can elevate your next project...
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Mobile App Development Review from Matic Debelak
Workstream 1: research and product strategyWorkstream 2: ETP release Technology : Vendor use Flutter framework, which allows one programming language and one codebase to create two different apps (for iOS and Android). Clearly defined roles and responsibilities, communication is clearly and respectfully, very effective project methodology, trying to understand every time how their activities fits into mission of Modra zavarovalnica, respect each member of team, etc.
Software Development Review from Claus-Peter Mueller
We have engaged Infinum to develop an app that would digitalise our leasing process. From creating the initial offer through the necessary financing application and client identification to the final signature – all the steps required to successfully lease a vehicle or other object can be performed in-app, freeing the users of friction and having to deal with tedious paperwork.The app itself in the background has 30+ integrations, while keeping a seamless and quick to follow process on the front for our users. That application is in production and Infinum is responsible for maintaining it and further improving. After the initial development, we have additionally expanded our scope from vehicles to other equipment. They have also developed a Leasing widget, product which enables quick financing model while purchasing a vehicle online on car seller marketplace pages. At this moment, we are still in partnership with Infinum, and their engagement is mainly focused on localising the app to other countries and supporting us in our further business expansion. The work performed was done in Ruby on Rails and React technology, with support of other services.
Web Design Review from Anonymous
Thanks to Infinum's website refresh, the client has seen an almost 100% improvement in their website's conversion rates. The team excels at project management, using the client's own proprietary tool and also Figma very well. Their proficiency in design, delivery, and client relations stands out.
Working with Trango Tech means you access a team of 200+ seasoned experts delivering transformative Software Development solutions—custom platforms, mobile apps, and enterprise systems. Clients trust our innovative approach to digital product engineering and seamless technology integration...
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Mobile App Development Review from Ashleigh J. Shim
Jane Miller and her team at Trango Tech have been phenomenal. They design a detailed and curated plan for your app design and development. I liked that Jane always made herself available to ensure the success of our company's app. Thank you Jane!
Mobile App Development Review from Fren D. Garcia
Had a fantastic experience working with Trango Tech for our eCom & app development needs. Their expertise in creating scalable and customized online stores was evident from the beginning. They provided valuable insights and suggestions that significantly improved my website's functionality and user experience. The Trango Tech team was responsive, communicative, and dedicated to meeting our specific needs. I'm thrilled with the end result and would highly recommend Trango Tech to anyone.
Mobile App Development Review from David V. Ringer
The team at Trango Tech was very communicative and kept me informed throughout the entire development process. They provided regular updates on the progress of the project and were always available to answer any questions I had. They were very patient with my requests and made sure that my requirements were met to my satisfaction.
Your AI and Data transformation partner.We help you unlock AIs value through the power of your data...
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Software Development Review from Ryan Husk
HatchWorks developed a solution to automate calculations for our sales team. The company created an application with a user-friendly interface and scalable algorithms in Python. HatchWorks had similar experience in the healthcare industry and we were satisfied with their responsiveness, QA, communication, and ability to translate imagination into actionable tasks. The project was well-organized with clear expectations and deliverables, making it easy to address miscommunication.
Software Development Review from Shaun Bank
HatchWorks was hired to develop custom software for a hybrid app and rebuilt the front-end. They provided top talent in LATAM and adapted to end client's changing needs. Despite rate fluctuation, they performed well, met commitments, received positive feedback and maintained high level of quality output and professionalism. The team coordinated effectively and the nearshore model is becoming more popular. The consulting firm was happy with HatchWorks' velocity and code quality.
Digital Strategy Review from Meishelle Haverkamp
HatchWorks is always a true partner that consistently delivered results. They completed several market analysis projects for us analyzing the competitive landscape and provided recommendations for strategic growth and growth opportunities. We have a long-standing relationship with Hatchworks. They have done several market analysis projects for us & always are able to synthesize large amounts of data into a compelling & easy to understand story.
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...
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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.
Faye stands at the forefront as global Salesforce consulting firm + SugarCRM and marketing automation consultants, turning software into pure efficiency. Our certified team excels in integrating platforms like SugarCRM, Zendesk, and Salesforce, ensuring optimized tech stacks for businesses. Powered by an...
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Joe Cumiskey's Review Sourced from Google
As a small Company 50 employees I would not recommend using Sugar CRM due to my own experience. They nearly put us out of business. Once you sign up you are at their mercy. The big Companies have influence on them. We were simply left high and dry.
Brightlab is an independent design & development studio that has one rule helping startups and big-scale enterprises build the most innovative online products in the market...
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Web Design Review from Yiannis Kaznessis
Our website was established and redesigned by Brightlab, and it receives a lot of traffic. Our interaction with Brightlab team was exceptional. They were dependable, communicative, and responsive. They were really easy to work with and quickly grasped what I was striving for. Additionally, there weren't many mistakes to fix after development. Incredibly capable and productive team!
You choose 10turtle to build digital confidence, clarity, and conversions partnering with a team that knows your digital presence should work harder. Nothing more, nothing less...
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Creative Services Review from Antonio Philantrope
Jigna was professional, patient, responsive, and highly collaborative throughout our CHOKOPAM branding project. She helped develop brochures, banners, event materials, tablecloth designs, and multiple refinements as our brand continued to evolve. She was always willing to incorporate feedback and work toward the best possible result. Communication was excellent, deadlines were respected, and the final deliverables were provided in print-ready formats. I would gladly work with her again and highly recommend her to anyone looking for a creative designer who is committed to client satisfaction.
Web Development Review from John McLardy
10turtle overhauled our Ladies Fashion startup website into something extra special. Even when our budget was restricted 10turtle went above and beyond to tailor their services to catch our most important priorities and in the end even delivered a little extra. I can't speak highly enough, thank you and we look forward to retaining your trusted services for other future website developments when our businesses move to the next stage.
Dashboard Design Review from Danial Sarfraz
We partnered with this presentation and brand design firm on a recent project and were thoroughly impressed. They combined strategic thinking with great design execution, helping us refine not only our visuals but also our messaging. The team was responsive, collaborative, and attentive to feedback, making the entire process efficient and enjoyable.
Delegate your business solution development to our trusted experts in the field of IT services, Software (full-stack) development, Web design, App design, and Digital marketing...
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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...
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At BannerWave, we excel in crafting interactive advertising and web experiences that offer real-time personalization for users, simultaneously generating valuable zero-party data for businesses. Our expertise lies in creating dynamic digital solutions that not only engage users but also provide actionable...
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Scott Labz LLC is an independent analytics and digital consultancy based in Bloomington-Normal, Illinois, working under a Measure, Build, Improve framework. Services span analytics implementation, data validation and reporting, custom web and application development, systems integration, and advertising...
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Pennine Technolabs is a fast-growing web and app development company serving in USA and worldwide. We build modern digital solutions to help businesses succeed. With a commitment to excellence, our expert developers and designers use the latest technologies to deliver user-focused results...
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Jenny Thomas's Review Sourced from Google
Working with them on our eCommerce project felt easy from the start. They understood what we needed and delivered without any hassle. Loved the final result
Ariana Richards's Review Sourced from Google
A very positive experience overall. They listened to our ideas and turned them into a clean and modern website without any hassle
Jordan Xavier's Review Sourced from Google
I had a good experience with Pennine Technolabs for my website design and development. Their team was professional, responsive, and understood my requirements well. The project timeline was o time, and the final website was as per what i wanted, very satisfied, recommended to others.
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