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.

Sketch Development Services
VerifiedVerified by the DesignRush team for authenticity and credibility.Build it. Run it. Own it.
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...
Top Services:
- Software Development
- Cloud Consulting
- UI/UX Design
- eCommerce Development
- DevOps Consulting
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- Location
- Chicago, Illinois
- Number of Employees
- Under 49
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSketch Development Services Services
Data sourced from the agency's DesignRush profileU.S. Bank Centene Corporation Maritz Change Healthcare Stifel Reinsurance Group of America (RGA) bioMerieux CareSource CENTEGIX Purina
Sketch Development Services Reviews & Testimonials
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.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsSolving complex problems with design and technology since 2005.
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...
Top Services:
- Web Development
- Web Design
- Mobile App Development
- UI/UX Design
- Software Development
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- Location
- Chicago, Illinois
- Number of Employees
- 250 - 499
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 24 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsInfinum Services
Data sourced from the agency's DesignRush profilePorsche Nike CITI Royal Caribbean Philips Bayer T-Mobile P&G Universal Virgin Mobile
Infinum Reviews & Testimonials

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.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsGlobal SAP Professional Services
Mygo Consulting helps enterprises get more from SAP. Since 2013, the Naperville-based Gold Partner has delivered 200+ projects across S/4HANA, digital supply chain (EWM, TM, IBP), Central Finance, BTP and Tricentis test automation for 500+ clients worldwide. Its MyProducts portfolio adds SAP-native AI for AP...
Top Services:
- IT Services
- ERP Consulting
- AI Development
- Software Development
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- Location
- Naperville, Illinois
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $50,000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMygo Consulting Services
Data sourced from the agency's DesignRush profileRust-Oleum Wolters Kluwer SAP
Mygo Consulting Reviews & Testimonials
chaitanya's Review Sourced from Google
Working at Mygo Consulting has been an incredibly rewarding journey for my professional growth. The company excels at fostering a culture of excellence, innovation, and teamwork, particularly within the SAP ecosystem. Management is highly approachable, transparent, and actively invests in the team by providing hands-on mentorship and continuous training opportunities. This supportive environment makes it a perfect place for anyone looking to sharpen their technical skills, take on exciting new challenges, and build a long-term, impactful career in consulting.
Prashanth N's Review Sourced from Google
My experience with Mygo Consulting has been exceptional. The leadership team consistently demonstrates professionalism, integrity, and a strong commitment to both employee and client success. Their collaborative culture promotes growth, learning, transparency, and trust.Mygo Consulting apart is its deep understanding of business needs, effective communication, and ability to deliver reliable, high-quality solutions that create real value for clients. I highly recommend Mygo Consulting as a trusted partner for businesses and as a supportive, growth-oriented employer for professionals seeking long-term career success.
divya jagabattula's Review Sourced from Google
I had a great experience with Mygo Consulting Inc. The team has been very supportive and professional throughout my onboarding and project transition. They provided excellent guidance, maintained clear communication, and made the overall process smooth and comfortable. I truly appreciate the efforts of the team in helping me get started and ensuring a positive experience.Mygo Consulting Inc. provides a great platform for professional growth and learning. The opportunities to work with new technologies and collaborate with experienced teams have been valuable. I am grateful for the support, trust, and opportunities provided by the organization and would highly recommend Mygo Consulting Inc. to professionals looking for a supportive work environment.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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