C# (C-Sharp) Development Firms in Chicago

ELEKS is your trusted partner for guaranteed software delivery. Combining over 30 years of industry insight with cutting-edge AI technology, we help businesses worldwide deliver their unique software vision through bespoke full-cycle solutions.

Good. I like this shift.

If you want to sound like a serious AI technology company — not a small marketing agency — the tone must feel:

Enterprise

Infrastructure-level

Custom development

Strategic partner

Technology-first

Here’s the upgraded version 👇

RHTECH AI is an advanced AI and automation technology company specializing in custom-built revenue infrastructure for service-based enterprises across North America. We design and develop proprietary AI systems, intelligent customer interaction platforms, custom CRM architectures, workflow automation engines, predictive analytics dashboards, and scalable SaaS solutions tailored to each client’s operational needs. From AI-powered call intelligence and conversational agents to full-stack system integrations, marketing automation ecosystems, and data-driven growth frameworks, RHTECH AI engineers end-to-end digital transformation solutions that increase efficiency, maximize revenue capture, and create sustainable competitive advantage.

Plavno is a premier software development house with over 20 years of experience and a highly qualified team of experts in your industry.

Fully-fledged teams of specialists cover each stage of product creation, from product management and analysis to design, development, testing, and ongoing support.

We have a unique advantage, our pre-formed full teams work exclusively on products in their specific domains, such as Healthcare, E-Learning, FinTech, Travel & Hospitality, Fleet management and more.

We can help you with:

✔ Web Development

✔ Mobile App Development

✔ CRM/CMS/SaaS Development

✔ Chat and Chatbot Development

✔ Web3 / DeFi / DAO / Smart contract

✔ WebRTC

Stop struggling with bloated budgets and slow time-to-market. At Plavno, our fully-fledged team provides cost-effective and streamlined solutions that minimize technical debt and maximize your product's potential. With end-to-end support and a proven track record in the SAFe Scaled Agile Framework, we're the partner you need to succeed.

LET’S CONNECT

Let us help you choose the best path forward to deliver the perfect solution: Admin@plavno.io

Chudovo is a custom software development company, focused on complex systems implementation. Customers rely on our expertise, appreciate transparency in time, budget, visibility of work progress, and our assistance in achieving their business objectives with high-quality solutions.

Our teams follow best development practices and methodologies and apply their experience in such industries as healthcare, finance, e-commerce, logistics, telecommunications, and others. In our portfolio, we have over 190 successfully implemented web, mobile, desktop, cloud, embedded, and AI projects. With our commitment to innovation, we bring together cutting-edge technologies, visionary strategies, and creative minds to breathe life into your visions and ideas.

Mark Your Digital Visibility Through the Power Of Our "Magically Designed Website"

Kick start your dream with our magically designed website, a valuable investment that promises lasting benefits. As your business flourishes, so does your digital identity and to keep it ahead of the race, trust our designer’s magical expertise to achieve your business goals from our spectrum of designing website UI, logos, infographics, banners, brochures, social media posts and much more. This is the time to activate your digital presence through the power of captivating designs to boost your digital persona and fascinate your clientele.

Personalized Designs

We appreciate your concise input to empower your business niche with personalized designs that meet your main visual requirements, effectively targeting your audience with a lasting impact.

Result Driven Designs

Our mission goes beyond mere satisfaction; we are dedicated to building an empire for your brand through the magical touch of our designers. Our goal is to not only meet your expectations but also to exponentially drive your Return on Investment (ROI) to new heights.

Multiple Design Concepts

Get multiple design concepts through the magic of our designer's artistic hands within a day's deadline. Each concept will be meticulously crafted to perfection, ensuring attention to detail down to each pixel.

Realweb Tech is a software consultancy that provides advanced AI, custom app, web, and IoT solutions to help midsize and enterprise businesses grow. Since 2018, our skilled and diverse team has focused on building scalable, secure, and future-ready technologies that improve operations and boost customer engagement, even in highly regulated and complex industries.

Unlock the full potential of your business with Scopic and Scopic Studios — sister companies combining the power of innovative software development with strategic digital marketing.

Scopic delivers cutting-edge custom solutions across web, mobile, desktop, and cross-platform technologies. Together with our digital marketing division, Scopic Studios, we offer a unique end-to-end approach: from ideation and development to growth-focused promotion and lead generation.

With over 1,000 products launched and deep specialization in B2B, SaaS, healthcare, and technology brands — and more, we cover the full product lifecycle helping you scale smarter, faster, and profitably.

From launching new digital products to scaling established brands, our mission is simple: maximize your return on investment by building exceptional solutions and ensuring they reach, convert, and retain the right audience.

Why Work With Us:

✔ Over 1,000 Digital Products Built – Proven experience across industries and platforms

✔ Custom Software Solutions – Tailored development with AI, cloud, and cross-platform expertise

✔ Full-Funnel Marketing Strategies – SEO, Google Ads, Social Media, Content Marketing, and Lead Generation

✔ Creative Design Services – Engaging, user-centered design that drives impact

✔ From Code to Conversion – We don’t just build, we market, grow, and scale your product

Certified and Trusted Across Platforms:

🚀 Google Certified Partner

🚀 HubSpot Certified Specialists

🚀 Semrush Certified Experts

🚀 AWS Advanced Tier Partner

🚀 Google Cloud Partner

Our international team holds recognized certifications from industry-leading platforms and partners, ensuring your campaigns, products, and digital presence are managed with cutting-edge expertise and global best practices.

Our Origin Story:

Scopic Studios began as an in-house service within Scopic Software, supporting the launch and growth of hundreds of digital products. As our marketing expertise expanded, we evolved into a standalone brand — now working side by side with Scopic as a sister company, providing full-service digital marketing while staying deeply integrated with the software world.

Together, we cover the complete product lifecycle: from strategy, design, and development to market outreach, user acquisition, and brand visibility.

📍 Find us on Clutch: With more than 40+ 5-star reviews ⭐⭐⭐⭐⭐ on https://clutch.co/profile/scopic-software

🌍 Explore our marketing division: https://scopicstudios.com

Find us on Guru: 100% positive feedback 🌟 on https://www.guru.com/freelancers/scopic-software

We offer free consultations/audits and estimates so feel free to reach out and we'll connect you to an expert!

Startbit IT Solutions Pvt. Ltd. an ISO 9001 and 27001 certified company, is a Global IT Services provider company with expertise in outsourced product development and custom software development focusing on web app development, mobile app development, and tailor-made solutions, etc. We consistently deliver offshore outsourcing solutions, quality software products, and solutions to start-ups, and mid-size and large enterprises worldwide.

We have 2200+ satisfied clients worldwide. We develop web, windows, and mobile applications using all the latest technologies i.e. SalesForce, SAP, Microsoft Technologies (ASP.Net, C#, VB.Net, Azure, Entity/MVC framework, SSRS, Crystal Reports, etc.), MEAN Stack, Front-end, PHP, Laravel, React, MERN, WordPress, CodeIgniter, Shopify, Ruby on Rails, Android Development, iPhone development, Hybrid mobile app, etc.

WHAT WE DO?

Customized Software Development:

We develop custom web and mobile app solutions from conceptualization to market launch covering your business needs.

eCommerce Solutions:

We have end-to-end e-commerce solutions with any kind of customization and store management consultancy.

Staffing Solutions:

We deploy our team on client’s projects in an offshore model to work with their local team/clients following all the legal compliance.

Process Automation:

We help our clients to automate their current manual processes with our industry-proven solutions to increase their overall productivity.

Quality And Reliability:

Team Startbit is focused and committed to quality output, we follow all the best practices to deliver it. We follow ISO and SOC compliance. Our clients rely on us in terms of data, processes, technologies, and deliverables, therefore we have been their back-end partners for many years and add value to it every year passing by.

Startbit has a team of 85+ full-time resources and more than 50% of them are certified in various areas – Scrum Master, Azure, AWS, Shopify, etc. Our team members are available during USA, UK, and India business hours. Team Startbit has expertise in web application development, framework knowledge, project management tools, and all required documentation. We are a young, agile team with a passion for delivering superior software solutions, products, and customer services.

Our team is well qualified and dedicated to work; most are certified by Microsoft and Sun Microsystems. Being a customer-driven company, Team Startbit constantly strives to provide the highest quality services to its customers.

Uptic ontwikkelt, verbetert en moderniseert software en de onderliggende platforms, van User Interface tot Artifical Intelligence. Uptic onderscheidt zich van andere aanbieders met waardevolle kenmerken:

- Modulaire keuze om een platform-dienst los of gecombineerd met een development-dienst af te nemen.

- Binnen vier maanden een Minimum Viable Product.

- Na vier maanden / MVP toch ontevreden? Contractontbinding mogelijk.

- Geen gebruik van low-code/no-code tooling zodat lock-in en hoge kosten worden vermeden.

- Efficient 'fractioneel' team met alle benodigde rollen. Iedere rol wordt per fase meer of minder gebruikt, kosten per maand blijven gelijk.

- Vaste medewerkers van Uptic, geen externe inhuur.

Uptic realiseert besparingen op de volgende manieren:

- Reduceren van web servers

- App servers (VM's) vervangen voor container-platforms.

- Van SQL-databases naar PostgreSQL

- Van file&block naar object storage

- Complexe Disaster Recovery uitfaseren en application native DR inbouwen met een RTO van enkele seconden.

- Performance versnelt 5x of nog meer

- Behoefte aan IT-infrastructuur daalt naar een tiende

De uitkomsten voor de business zijn groot:

- Tientallen procenten kostenbesparing na vervanging van legacy applicatie(s).

- Return on Investment al na 4 maanden.

- Aantoonbare daling in CO2-uitstoot van softwaregebruik.

- In plaats van betalen voor gebruik van legacy software wordt de organisatie eigenaar van Intellectual Property.

- Belastingvoordelen voor R&D.

👨‍💻 Bluelight is a leading custom software development company with a team of top-quality software developers from 6 different countries spanning the US, Canada, and LATAM, enabling companies to achieve their roadmaps with speed and precision.

🛠️ We offer a wide range of services, including Software Development Services, Staff Augmentation, Development Teams, SOC 2 Compliance, DevOps and Cloud Services, Custom AI Solutions, and much more.

🤖 We have expertise in various technologies such as React, Node.js, Python, .NET, Java, Ruby, PHP, Golang, and Angular.

📲 Bluelight also provides solutions in QA Testing & Automation, Business Intelligence, Data Science, iOS and Android App Development, and UX/UI Design.

🚀 Our mission is to be a reliable partner empowering businesses with cutting-edge software, technology, and infrastructure solutions that deliver value and drive societal transformation.

Welcome to TechMagic - a full-cycle development company with strong Healthtech and Cybersecurity expertise that provides end-to-end software development services to businesses of different sizes.

With a proven track record of 200+ successful projects, 11 years on the market, and 400 experts onboard, TechMagic is your trusted product development partner.

Our backend skillset includes Node.js, Nest.js, Java, .Net, PHP, and Python. On the frontend side, we work extensively with Next.js, React, React Native, Angular, Vue.js, etc. From the infrastructure perspective, we mainly go for AWS. However, we have projects in the GCP and Azure spaces as well. With a deep understanding of the critical importance of cybersecurity in today's technology-driven world, we also provide specialized security services.

Our services:

- AI Development

- Discovery Phase

- UX/UI Design

- Web Development

- Mobile Development

- Cloud Consulting

- Test Automation

- Cybersecurity

- CTO as a Service

- Salesforce Development and Integration

We deliver software products from concept to deployment or enforce existing ones. By working with TechMagic, you unlock the full potential of technology for your business.

Troy Web Consulting is a custom software development company with 23 years of experience creating secure, intuitive, and future-ready software solutions for companies and organizations. Our custom-tailored approach and diverse team ensure innovative, high-quality software that meets evolving technological needs.

We design and develop custom software, web apps, mobile apps, and websites for businesses across multiple industries. Our core competencies are .NET and Laravel with frontend work done using Angular, Vue, and React, mobile development done using React Native, Expo, and NativeScript, and website development done using WordPress and other tools.

Founded in 2017, Apptech has emerged as a reliable ally for organizations on their journey towards digital transformation. We specialize in crafting a suite of digital solutions that strategically leverage the transformative power of technology. Our core expertise encompasses bespoke software, innovative web and mobile applications, and robust enterprise solutions that guide our clients toward a prosperous digital future.

We are proud partners with industry giants Microsoft and Amazon, utilizing their cutting-edge technologies to deliver exceptional results. Moreover, our operations extend from our headquarters in Türkiye to the United States and Saudi Arabia. Each office is equipped to serve regional clients with tailored expertise, making us a global player in the digital solutions arena.

IT Consulting

Quality Assurance Services

AI & Machine Learning

SaaS Development

Web & Mobile App Development

App Modernization

PoC/MVP Development

End-to-End Software Development

Our mission is to help enterprises accelerate the adoption of new technologies, untangle complex issues that always emerge during digital evolution, and orchestrate ongoing innovation. Whether it is a consumer-oriented app or a transformative enterprise-class solution, the company leads the process from ideation and concept to delivery and provides ongoing support through its quality framework.