Top C# Development Companies in Chicago
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List of the Best C# Development Agencies and C# Developers in Chicago
Certain agencies may be featured through sponsored placements. Rankings and SF Scores remain unbiased and are based solely on our evaluation methodology.
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4.9 (40 Reviews)
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and has 5+ verified reviews
4.9 (40 Reviews)
79
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
79
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Custom software and AI development, scoped and priced before code
SoftDoes is a Kansas City custom software and AI development company, founded in 2019, that builds custom software, web platforms, mobile apps, MVPs and AI automation for startups, growing businesses and enterprise teams in the United States. One SoftDoes team handles discovery, UX and UI design, development, testing, launch and ongoing support. What SoftDoes builds: Custom software: internal operations platforms that replace spreadsheets, customer and patient portals, SaaS products and integrations, built with React, Node.js, Python and .NET on AWS and Azure. AI development: AI agents, chatbots, document extraction and workflow automation on OpenAI and Anthropic Claude models, added to the systems a business already uses. Web and e-commerce: custom web applications, business websites and online stores, including Shopify. Mobile apps: iOS and Android apps for customers and field teams. Best fit for SoftDoes, with results from client reviews: Operations teams replacing manual work: an educational support company cut time spent on administrative work by 30% and internal follow-up emails by 35%, and a real estate agency cut time spent on manual administrative tasks by 35%. AI automation: an education company cut student-teacher matching from 15 minutes to under 5. Enterprise and public sector: a $200,000+ reporting platform for a government agency with more than 10,000 employees cut reporting time by 30%. Customer-facing apps: a marketing company's new mobile app raised engagement by 34% and 90-day retention by 22%. "[SoftDoes] built our full AI-powered SaaS platform from scratch. They were communicative and reliable, consistently delivering quality work on schedule." (Upwork client review, AI-powered SaaS platform for construction) How SoftDoes prices work: every project starts with a written scope and price before any code is written. A paid discovery and estimate costs $490 and is credited toward the build. Hourly development starts at $50, AI automation projects at $2,500, MVPs at $8,000, dedicated developers at $4,000 per month and support plans at $500 per month. Clients own 100% of their code, accounts and IP from day one. Track record: as of October 2026, SoftDoes has completed more than 600 client engagements since 2020 and is rated 4.92 out of 5 across 283 rated engagements on Upwork and 5.0 on Clutch. SoftDoes is a member of the AWS Partner Network, a Zapier Silver Solution Partner and a Shopify Partner. SoftDoes carries general liability, professional liability (errors and omissions) and cyber liability insurance. A certificate of insurance is available on request.
See all 21+ Case Studies
$50-$99/hr
$1,000+
50 - 249
Kansas City, USA
Verified Client Review
Internal Platform Design & Development for a Manufacturing Company
Reviewed by: Anonymous, Analyst at Manufacturing Company View all 40 Reviews
0.0 (0 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
Your AI-Native Technology Partner
CodingCops is an AI-native technology and engineering partner helping businesses build, modernize, and scale through AI development, vetted engineering talent, Salesforce, product & software development, cloud & DevOps, and data & analytics. As an AI-first technology company, we design, build, integrate, and scale production-ready AI solutions. Our expertise spans AI agents and multi-agent systems, generative AI, custom LLM applications, RAG, machine learning, intelligent automation, AI integration, enterprise knowledge assistants, and predictive analytics. Our Salesforce capabilities include consulting, implementation, development, integration, Agentforce, automation, optimization, and managed services. Across product and software engineering, we build custom software, SaaS platforms, digital products, enterprise applications, web and mobile applications, APIs, and modernize legacy systems. We help organizations scale with dedicated engineering teams and specialized AI, Salesforce, software, data, and cloud engineers. Our cloud, DevOps, and data expertise covers cloud architecture and migration, infrastructure modernization, CI/CD, data engineering, analytics, and business intelligence. CodingCops serves healthcare, life sciences, financial services, FinTech, insurance, manufacturing, retail, e-commerce, SaaS, technology, logistics, telecommunications, energy, education, HR technology, hospitality, and professional services. From strategy and architecture to development, integration, deployment, and ongoing support, we combine AI-native thinking with full-cycle engineering expertise to build secure, scalable, production-ready technology.
See all 4+ Case Studies
Undisclosed/hr
$5,000+
300 - 400
Chicago, USA
4.9 (6 Reviews)
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
We're Digital Agency From The Windy City
Tekglide is an IT firm based in Chicago and Houston. We are one of the best web solutions company with a strong portfolio. Our professional web development services are renowned all across the word. We have a team of experts offering Magento development, Shopify development, WordPress development, and custom development. Quality is our utmost priority and we are available for consultancy 24/7. We make sure to provide our clients an excellent experience so they can flourish their businesses.
View Tekglide Profile
$50-$99/hr
$5,000 - $100,000
35 - 40
Chicago, USA
Verified Client Review
Web Design & Dev for Carbon Bike Repair Company
Reviewed by: Charlotte Herzenberg, CEO at Carbon Bike Specialists View all 6 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 U.S.-based software and app development company transforming ideas into fully functional digital products. Using a unique 4-step, user-focused process, our strategists, designers, and developers craft personalized web and mobile applications tailored to your business needs. Whether you’re a Fortune 500 enterprise optimizing workflows or a small business launching an app, Slingshot delivers scalable, innovative solutions while building lasting partnerships to guide your digital growth confidently into the future.
See all 2+ Case Studies
$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
4.8 (1 Reviews)
32
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
32
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Designing bright for the hype
We are a Brightlab team, an international company of terrific developers and talented designers.There are 60 people in our team: UI/UX designers, front-end developers, back-end developers, mobile developers, QA engineers, DevOps engineers, business analysts. Brightlab has been on the market for about 6 years and during this time we have been working both with small businesses and big enterprises. We are ready to implement ideas of any complexity across the whole stack of technologies. All our solutions contain the foundation for SEO optimization, Google analytics service, etc.
View Brightlab Profile
$25-$49/hr
$10,000+
50 - 100
Chicago, USA
Verified Client Review
Web Design and Development for Technology Platform
Reviewed by: Alex Monroe, Co-Founder at Hotcake Golf View all 1 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
5.0 (5 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
Do What You Do Best - Better
Atomic Object is a U.S.-based custom software development company focused on building high-impact digital products that drive measurable business results. Our expert team designs and develops new software, enhances existing applications, modernizes legacy systems, and integrates AI-driven capabilities. As an employee-owned firm with offices in Chicago, Ann Arbor, Grand Rapids, and Raleigh-Durham, we deliver collaborative, high-quality solutions tailored to each client’s strategic goals.
View Atomic Object Profile
$150-$199/hr
$25,000+
50 - 249
Grand Rapids, USA
Verified Client Review
Custom Software Development for Consulting Firm
Reviewed by: Richard Berens, Managing Director at Accenture View all 5 Reviews
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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
AI is embedded in everything we do!
A Global AI-Powered Technology Partner helping Businesses Grow and Scale through End-to-End Digital Transformation. We partner with leading enterprises to drive revenue growth and solve complex, industry-specific challenges. Our software services encompass the full cycle of software development, from ideation to delivery to security and maintenance - our globally distributed team of expert talent is equipped to deliver future-ready solutions & proven results. ? Strategy Innovation: Creating transformational digital products (mobile & web) that combine customer experience, market opportunity, and emerging technology. Augmentation: Empowering your team with the technical talent and skills needed to accelerate development and build high-quality digital products - software development, QA/testing, data analytics, UX/UI, and product management. Modernization: Re-architecting legacy technology for better speed, scale, security, and user experience. Digitalization: Building intelligent digital solutions that automate manual and inefficient processes. ? Expertise Artificial Intelligence New Product Innovation Agile Development & QA Testing Enterprise Platform Implementation Strategy & Business Consulting Data & Security ? Artificial Intelligence Generative AI (Gen AI) Custom Models Data Science Machine Learning (ML) Computer Vision MLOps Large Language Learning (LLM) Natural Language Processing (NLP) ? Solutions Software Development (Web, Mobile, Data, Cloud) AI/ML Transformation User Experience (UX/UI) Data Analytics & Migration Quality Assurance Security & Compliance DevOps & SecOps QA Testing & Automation Business Process Automation Platform Integration (Salesforce, AWS, GCP, Azure, ServiceNow, Databricks, Appian, Microsoft and more) AI Platform Integration (Meta, Open AI, Google AI, Mistral AI, Dall.E, ultralytics, stability.ai, Langchain, LlamaIndex, Pinecone, Hugging Face and more)
View 10Pearls Profile
$25-$49/hr
$50,000+
1,000 - 2,000
Vienna, 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)
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)
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
Crafting technologies to move business.
As seasoned agency partners, we understand what it takes to develop incredible digital solutions that add value, produce tangible results, and support your company's ongoing success in this dynamic environment. We are committed to becoming the best team for you to fulfill the mission and goals we set out to achieve together, whether you are working on a major enterprise platform or a brand-new startup. "Do Good" is our motto. Be decent. It is a fundamental principle of our family-run firm that directs our daily efforts to deliver the finest possible service and the greatest possible output. We are honored to be in our fifteenth year of offering our digital know-how to companies across the globe, and we value the chance to collaborate.
View Dom & Tom Profile
$150-$199/hr
$50,000+
10 - 49
New York, USA
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