Top .NET Development Companies in Illinois
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Explore Reviewed .NET Development Companies in Illinois — Find Skilled .NET Developers for Your Project
Certain agencies may be featured through sponsored placements. Rankings and SF Scores remain unbiased and are based solely on our evaluation methodology.
19 Companies
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Illinois
5.0 (13 Reviews)
53
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
53
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Your partner in mobile and web engineering
Simpalm is a leading digital product development company in the USA, specializing in UI/UX design, mobile app development, web development, AI solutions, and SaaS platforms. With offices in Maryland, Chicago and New York, we’ve been building transformative digital solutions for startups, established companies, and nonprofits. Our digital solutions have solved challenges for healthcare, financial services, construction, education, IoT, charities, associations and SaaS industry. Our team of experienced project managers, designers, developers, and testers combines creativity with cutting-edge technology to turn ideas into high-performing apps, websites, and AI-driven systems. We focus on delivering products that enhance efficiency, scalability, and user experience — helping organizations grow faster in today’s digital-first world. With over 400+ successful deployments, Simpalm has become a trusted partner for businesses looking to design, develop, and scale their digital products. Beyond development, we offer continuous support and maintenance to ensure your solution remains secure and future-ready. Our Main Services: Discovery and Design: Define requirements, create wireframes, and design visually engaging UI/UX for your app or website. Custom App Development: Build AI-powered mobile apps using React Native, Swift, Kotlin, and Flutter. Website Design and Development: Craft CMS-based websites in WordPress, Drupal, or Hubspot CMS to represent your brand or organization effectively. Web and SaaS Applications: Develop scalable SaaS or web portals using React, Node.js, .NET, and Python. AI Strategy and Development: Create tailored AI strategies, chatbots, and automation workflows that empower your business. Support and Maintenance: End-to-end technical support to keep your products performing seamlessly.
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$100-$149/hr
$25,000+
10 - 49
Rockville, USA
Verified Client Review
Custom SaaS Platform Development for Staffing & Financial Services Startup
Reviewed by: Stephen Wigginton, Cofounder and CEO, Stitch Workflow View all 13 Reviews
5.0 (16 Reviews)
47
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
47
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Blockchain, AI, and Mobile App Development Company
Debut Infotech is a global leader in advanced technological solutions, renowned for its expertise in AI, Blockchain, Smart Contracts, IoT, and mobile and web development. Since its inception in 2011, the company has grown to become a trusted partner for businesses worldwide, from Fortune 500 companies to SMEs and MSMEs. In addition to its industry-leading white label crypto solutions, Debut Infotech excels in blockchain and crypto services, including real estate tokenization, decentralized application (DApp) development, DeFi solutions, and smart contract development. These services enable businesses to leverage blockchain technology for secure, transparent, and efficient operations, transforming traditional industries and unlocking new revenue streams. The company’s AI development services further enhance its portfolio, integrating cutting-edge technologies like GPT-4, LLaMA, and PaLM-2 to deliver intelligent, data-driven solutions that drive operational efficiency and innovation. With headquarters in India, the USA, the UK, and Canada, and an expanding team of over 100 technologists, Debut Infotech continues growing and innovating top-tier expertise at competitive rates. As the company advances, it remains committed to delivering customized solutions that address the most complex challenges, driving transformation and success for clients across the globe.
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$25-$49/hr
$10,001 - $15,000
100+
Chicago, USA
Verified Client Review
Head of Human Resources - Project EnergyConnect
Reviewed by: Rachel Solomon, Head of Human Resources View all 16 Reviews
4.9 (7 Reviews)
41
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
41
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Taction Software: Top Rated App Development Company
Taction Software is a leading US-based custom software development company offering innovative solutions in healthcare, CRM, mobile apps, and enterprise software. Backed by over 12+ years of experience, we deliver tailored, scalable, and cutting-edge technology solutions to streamline processes and drive business growth. Explore our expertise today!
View Taction Software Profile
$25-$49/hr
$10,000 - $10,000,000
50 - 149
Chicago, USA
Verified Client Review
Patient Portal Design & Development for Healthcare Company
Reviewed by: Joshua Macdonald, Programming Director at AvitaCare Atlanta View all 7 Reviews
5.0 (2 Reviews)
5.0 (2 Reviews)
33
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
33
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
For Big Kids and Daredevils
Slingshot is a USA- based software and app development company specializing in taking your vision from idea to launch. Their unique 4-step process puts an empathetic focus on the user, allowing their strategists, designers, and developers to personalize the app specifically for your business. Whether you’re a Fortune 500 company wanting to streamline your process or a small organization needing to create a mobile app, their daredevils would be happy to help. Their goal is to create a lasting relationship so that they can guide you confidently into your future.
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$100-$149/hr
$50,000+
10 - 49
Louisville, USA
Verified Client Review
Application Design & Dev for Startup Company
Reviewed by: Roland Achenjang, Founder & CEO, C2 Keep View all 2 Reviews
4.7 (10 Reviews)
4.7 (10 Reviews)
31
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
31
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
OUR QUALITY, YOUR SUCCESS!
We are a collection of realists, strategists, developers, perfectionists, and idealists. We create amazing apps and software. Our primary objective as a leading enterprise is providing clients worldwide with digital transformation services and solutions. With a strong track record of more than a decade in the IT industry, 9series' experience is valued, with countless man-hours devoted to delivering cutting-edge services and solutions. We have built more than 65 mobile applications, successfully served more than 500 clients, and are dispersed throughout countries such as Sweden, Norway, Ireland, Finland, the United Kingdom, Germany, France, Italy, South Africa, Ghana, Kenya, the United States, Canada, Australia, Singapore, Malaysia, Turkey, Egypt, Iran, and the United Arab Emirates, among others.
View 9series Profile
$25-$49/hr
$1,000+
50 - 249
Seattle, USA
Verified Client Review
Web App Dev for Property Rental SaaS Platform
Reviewed by: Angel Ramos, CEO at ACuadrado Corp. View all 10 Reviews
0.0 (0 Reviews)
30
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
30
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Arccus Inc., made its inception in 2015 to deliver top-notch IT development and consulting services for its global client base.
Arccus Inc. is a leading digital solutions provider based in the USA. Specializing in web and mobile app development, IT consulting, and AR/VR development, Arccus helps businesses harness technology to drive innovation and growth. From startups to enterprises, the company delivers customized, user-centric solutions tailored to industry needs.
View Arccus Inc Profile
N/A
$100 - $200
45 - 50
Illinois City, USA
0.0 (0 Reviews)
30
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
30
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Software Development Outsourcing Company
CodingCops is a trusted global tech talent partner for businesses looking to hire elite software developers on-demand. As a leading hire-developers agency, we specialize in helping startups, SMEs, and enterprises quickly scale their engineering teams with pre-vetted, remote software developers without the time and cost of traditional hiring. Whether you're looking to hire one developer or build a dedicated offshore team, CodingCops offers flexible engagement models that adapt to your goals, timelines, and tech stacks. Our global talent pool covers all major technologies including React, Ruby on Rails, Node.js, Python, Java, AI, ML and more. With each developer pre-vetted for technical ability, communication, and culture fit. We proudly serve clients across critical industries: * Technology * Healthcare * Finance * Retail & E-commerce * Manufacturing * Telecommunications * Education * Energy Our excellence has been recognized by leading industry platforms including Clutch, G2, Gartner, GoodFirms, SoftwareWorld, TopDevelopers, DesignRush, Outsource Accelerator, SelectedFirms, and Wellfound. A testament to the quality, reliability, and impact of our developer talent. At CodingCops, we don’t just fill roles. We help you build high-performance, scalable teams that drive innovation and business growth. Whether you're launching an MVP, optimizing existing systems, or building enterprise-grade platforms, our developers integrate seamlessly into your projects and deliver results from day one. Hire faster. Scale smarter. Build with the top 1%, only at CodingCops.
View CodingCops Profile
$25-$49/hr
$10,000+
300 - 400
Chicago, USA
0.0 (0 Reviews)
30
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
30
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Empowering Businesses through Innovative Software Solutions
At Codevision Technologies, we empower organizations to work smarter through innovative digital solutions tailored for modern business challenges. Headquartered in India with a global footprint, we are a trusted technology partner for businesses across the USA looking to streamline operations, enhance employee experience, and drive measurable results. With deep expertise in Microsoft SharePoint, Power Platform, AI automation, and custom enterprise application development, our team brings strategic thinking and technical excellence to every project
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$25-$49/hr
$50,000 - $59,998
30 - 48
Carol Stream, USA
0.0 (0 Reviews)
29
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
29
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Impero IT Services: Expert Software & Mobile App Development Company
Impero IT Services provides comprehensive development solutions and a range of software engineering services designed for business productivity, agility and scalability. We're globally trusted, award-winning developers with 10+ years of delivering innovation and excellence. Portfolio of our services meets the varying requirements of our diverse clients. Our strong dominance in app development and quality services empower us to deliver efficient and seamless solutions for every industry. We'd be really happy to help you achieve your goals.
View Impero IT Services Profile
$100-$149/hr
$100 - $150
150+
Westmont, USA
0.0 (0 Reviews)
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
digital agency in Chicago
You don’t just need a brand—you need a presence. At Design Henge, we craft bold, high-impact digital experiences that make your business unforgettable. We’re not just any digital agency in Chicago—we’re the one that makes brands impossible to ignore.
View Design Henge Profile
$100-$149/hr
$100 - $1,000
50 - 60
Chicago, USA
0.0 (0 Reviews)
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Collaborate. Innovate. Succeed
As a Microsoft Solution Partner, Snowflake Partner, and AWS Certified Partner, we are equipped with years of experience and expertise that make us the ideal partner for your business's data-driven journey. We specialize in turning innovative ideas into actionable, data-driven solutions tailored to your needs. Our extensive portfolio of tested platforms, solutions, and algorithms in the field allows us to share practical knowledge to your advantage, ensuring that you don’t start from scratch. Our engineers bring expertise in Data Science, AI, and Computer Vision, enabling us to drive your projects forward efficiently and effectively. We pride ourselves on maintaining smooth and flexible processes infused with financial and legal transparency. With a commitment to timely delivery, you can feel safe and confident in the collaboration we forge together. By partnering with us, you gain access to top-tier skills in Data engineering, AI Engineering & Product Engineering, DevOps, and more, ensuring a fruitful outcome for our mutual interests. Read our case studies.
View Discover Alpha LLC Profile
< $25/hr
$500 - $100,000
2 - 10
Naperville, USA
0.0 (0 Reviews)
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Transforming Ideas into Digital Realities
StudioKrew is a leading mobile app and Game development company based in India, USA, UK, UAE, & Canada, since 2013. Creating customer success strategies and implementing them into solutions is what we do at StudioKrew. With 12 years of experience in providing smart IT solutions, our social nerds have mastered the art of pushing boundaries to create customised mobility solutions and achieve success stories. Simultaneously with developing exciting products, we work on maintaining strong client relationships, which are crucial for carrying forward business legacies. The StudioKrew team has been a top hand-picked tech company globally across different time zones. We deliver quick projects while maintaining high-level designs and development aesthetics, catering to the needs of the demanding market. Do you have an idea? Feel free to consult with our managers to brainstorm possibilities and strategies to create a viable product before you sign in. Contact Us Now. Our service offerings include: Product strategy and definition Mobile Game Development Casual Game Development Game Designing Studio High Graphics 3D Designing and Animation UX/UI design Native Mobile App Development React Mobile App Development AR/VR App Development Web development Backend services AI, Machine learning and data science eCommerce Web and App Development Revit Development and Consultancy Some of the sectors we specialize in: Product strategy and definition UX/UI design Automobile Advertisements Entertainment Education Healthcare Banking Training and Assessments
View StudioKrew Profile
$25-$49/hr
$2,000 - $6,000
80 - 120
Chicago, USA
0.0 (0 Reviews)
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Discover Posibilities
Hidden Brains is an enterprise software and IT consulting company that was founded in 2003. It provides web, mobile, cloud, AI, and IoT solutions to clients across various domains and industries. It has delivered over 6000 projects to more than 2400 clients in 108 countries. It has a team of over 700 experts and has won several awards and recognition for its excellence and innovation.
View Hidden Brains Profile
N/A
$0+
700 - 1,200
Schaumburg, USA
5.0 (3 Reviews)
25
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
25
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Web Design Agency and SEO Services Company in USA
Headquartered in Chicago, SITE IT NOW has now become a market leader in professional Web Development services in the USA, Their other service expertise includes Web Designing, Website Development, Search Engine Optimization (SEO), WordPress Development, Shopify Website Development, Software Development, Web Application Development, eCommerce Website Development, Social Media Marketing, Mobile App Development, and Secure Web Hosting Solutions. The Chicago web development agency offers digital solutions to create new competitive advantages for customers from varied industries like healthcare, education, Fintech, entertainment, e-commerce, Hospitality, and related verticals present across the USA. Their expert website developers give individualized attention to each project so that you can offer your website visitors an exceptional user experience.
View SITE IT NOW Profile
$50-$99/hr
$1,000+
10 - 49
Chicago, USA
Verified Client Review
E-Commerce Dev for Gothic Products Shop
Reviewed by: Stacey Williams-Ng, Owner at La Panthère Studio LLC View all 3 Reviews
0.0 (0 Reviews)
20
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
20
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Let us help you build your software solutions from
Web apps, mobile apps, custom software development, ERP consulting, cloud storage solutions, business due diligence, robotic process automation, business process automation, and other b2b infrastructure solutions are just a few of the b2b services offered by Collinsville, Illinois-based Swip Systems. We can work with your firm to identify the best technological options to improve the effectiveness and efficiency of your daily operations. Swip Systems is your one-stop shop for all of your company's IT requirements; we can handle any problems your business may be having with technology.
View Swip Systems Profile
$200-$300/hr
$5,000+
10 - 49
Collinsville, USA
0.0 (0 Reviews)
19
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
19
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Inspiring mobile apps built in half the time
Foxbox Digital is an award-winning engineering-focused product development agency. They have a track record of developing and releasing successful digital products, and they have worked with Fortune 500 organisations, high-growth startups, and inventors of products utilised by hundreds of thousands of people. Foxbox Digital, with its corporate headquarters in Chicago, is committed to assisting clients in creating stunning digital experiences for both mobile and the web. Foxbox is an engineering and product management firm that specialises on creating with React Native and Elixir.
View Foxbox Digital Profile
$50-$99/hr
$50,000+
10 - 49
Chicago, USA
0.0 (0 Reviews)
0.0 (0 Reviews)
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Inspired by Creativity, Driven by Results.
PDT, an astronomy company, was established with a novel idea about how to generate new products. Our work, which is based on creativity, is counterbalanced by a thorough comprehension of your company, your clients' needs, and your markets' demands. This distinctive, process-driven strategy has fueled our expansion to a global company with more than 120 innovation specialists. In order to add value for Astronics Corporation and its clients in the consumer, medical, defense, and aerospace industries, we keep an eye on the newest developments in design and technology. Authorities including BusinessWeek, Fast Company, the Industrial Designers Society of America, the Consumer Electronics Association, and the Chicago Athenaeum Museum of Architecture and Design have honored PDT's research, design, and engineering teams with more than 100 prestigious industry awards.
View PDT Profile
$150-$199/hr
$25,000+
50 - 249
Lake Zurich, USA
0.0 (0 Reviews)
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
IT Solutions That Match Your Needs!
We serve two distinct regions: the United States and the Gulf Cooperation Council. NCIT Solutions' goal is to offer affordable, practical outsourcing solutions. We provide you with offshore services that are customized to meet your unique needs. Our affordable IT solutions give you a competitive advantage and produce noticeable outcomes. We can handle all of your IT demands because we work with a wide variety of systems, including Linux, UNIX, Solaris, Windows, iOS, and Android. Our software team's primary skills include software design and graphic design.
View NCIT Solutions Profile
N/A
$1,000+
10 - 49
McCook, USA
0.0 (0 Reviews)
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Maximizing Engagement Through Custom Web Development Solutions
Whether you're a startup, enterprise, or global organization, our approach focuses on understanding user interactions to boost engagement and satisfaction. With over 15 years of experience delivering custom web development solutions, we have completed more than 2,000 projects across industries such as healthcare, education, eCommerce, finance, media, entertainment, travel, and automotive. Our flexible solutions cater to businesses of all sizes, including 12-month interest-free payment options. From strategy and UX design to full-stack development and digital marketing, we provide end-to-end support. Schedule a free website or marketing consultation today and let us help your business grow online.
View Summit Designs Group Profile
$100-$149/hr
$1,000+
10 - 49
Arlington Heights, USA
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