Collaborate with top .NET development companies in the United States to modernize, streamline, and scale your systems through custom .NET development.
We Compiled the Best USA .Net Development Companies for You
69 Companies-Rankings updated: September 03, 2026
DesignRush vets all agencies based on professional qualifications and verified customer feedback to help you choose confidently. Some featured agencies maintain paid sponsorships.
US Digital Partners is a digital execution agency that helps mid-market businesses and enterprises refine and grow their brand and marketing efforts...
Daylit Studio designs and builds websites for organizations that cannot afford to get them wrong. We handle the whole site under one roof, design through code, in the open, with every step signed off. Twenty-six years of production work for teams under real pressure across healthcare, higher education, public...
We deliver a personal, passionate & tailored marketing service to each and every one of our clients, big or small, based in Fayetteville NC or anywhere in the world. We strongly believe that theres no merit in a one-size-fits-all approach...
Shopify Plus & Headless Commerce Agency for DTC Brands.
Based in Lynchburg, Virginia, Creative Labs is a veteran Shopify Partner agency that has been elevating eCommerce since 2012. With a portfolio of over 800 brands across six continents, we specialize in high-converting custom development, SEO, paid media, and conversion optimization...
Turning Ideas Into Apps | Your Vision, Our Innovation
Profusion Systems is a leading mobile application and software development agency that turns creative concepts into innovative, user-friendly solutions. Founded in 2012, the agency specializes in custom software, cloud migration, and chatbot development, catering to mid and large-sized businesses. With a...
We're a leading IT custom software firm with 30 years of experience in LATAM. Our elite 10% developer team delivers top-notch quality, speed, and affordability, as proven by clients like Motorola, Intel, IBM, and Oracle. We offer Software Dedicated Teams and Staff Augmentation to boost your project...
Check Work Results First & Pay After Complete Satisfaction - Hire White Label Services Risk-Free!
We prioritize delivering results over billing hours, ensuring you receive top-notch work in record time. From swift price quotes to rapid work delivery, we work on minimizing your wait time and maximizing productivity. Our 24/7 availability ensures instant support whenever you need us. Clients choose us for...
Best Digital Marketing Agency Fueling Your Success
TEKOCEANS is a vibrant digital agency dedicated to elevating your online presence. From sleek web and logo design to SEO, Social Media Marketing and Video Animation; we deliver polished, performance driven solutions that help businesses make a lasting impression...
Digital Marketing & Web Design for B2B, Healthcare, Education & Manufacturing.
ThinkPod is a digital growth agency specializing in SEO, web design, and strategy for B2B, healthcare, manufacturing, and education brands. Trusted nationwide since 2001...
Zynergetix Hub is an integrated digital agency that bridges creative vision with technical execution. We specialize in building high-performance websites, developing AI-powered automation solutions, and executing data-driven marketing strategies that generate measurable ROI. From SaaS platforms and e-commerce...
Fineart Design Agency, a leading design agency in Canada, is passionate about creating the best user experience possible and exceeding your expectations. From ideation to launch, we are dedicated to delivering impeccable solutions that align with your development goals...
Beehive is a new production model for software development (the world's first we should add) that fuses AI precision with human ingenuity. A model of collective intelligence that breaks projects into microtasks, routing them to global experts, and delivering production-ready, high quality, code faster than...
As a better digital marketing agency, we offer comprehensive, real-world, wheels- meet-the-road solutions that move the needle. You'll come to see us as digital marketing professionals who have been there and back again.Let's build something extraordinary together...
EpicBliss Solutions provides a variety of IT services.
Many worldwide clients are now using "EpicBliss" benchmark solutions, We're capable to drive you to the right tech-track for your laudable idea. So, let's scrutinize your business need, mold it and establish it with the latest and most suitable technologies...
PROCEED is a full-service digital marketing agency focused on helping businesses push boundaries and achieve exceptional results. Specializing in 360-degree digital solutions, they offer services in website design, SEO optimization, social media management, and content creation...
Space Inventive delivers AI-powered solutions, data engineering, and digital transformation services tailored for pharma, healthcare, and fast-growing businesses. We blend innovation with execution to solve complex challenges through scalable, future-ready technology...
What services does a .NET development company in the United States provide?
A .NET development company in the United States provides full-cycle custom software, website, mobile app, and cloud development using the .NET framework and ecosystem. Specifically, they offer the following:
Software audit: Analyzing the software performance, identifying issues, and creating strategies for improvements
.NET modernization: Updating the solution’s codebase, infrastructure, UI/UX design, and other functionalities to the latest standards and technologies
.NET migration: Securely transferring documents and data to a .NET software while minimizing disruption to core business processes
Cross-platform development: Crafting applications that can seamlessly function on iOS, Android, Windows, and Linux devices using a single base code
Custom APIs: Unifying systems by integrating .NET software with other apps and solutions
Enterprise solution development: Producing custom customer relationship management (CRM), finance, and inventory systems based on .NET and Windows apps
.NET consulting: Providing expert advice on optimizing the use of the .NET ecosystem and enhancing current technologies
Maintenance and support: Continuously monitoring performance, resolving issues, and updating .NET applications to ensure they remain fully functional
How much does it cost to develop a .NET solution in the United States?
On average, a .NET solution in the United States costs between $20,000 and $100,000. The final price will depend on the software type, core features and functions, project timeline, compliance requirements, and team expertise.
Here’s an estimation of .NET project costs:
Websites: $10,000-$200,000
Desktop software: $20,000-$150,000
Mobile apps: $20,000-$150,000
Enterprise solutions: $50,000-$1,000,000
Game development: $10,000-$1,000,000
eCommerce apps: $10,000-$200,000
How long does a .NET development company in the United States take to complete a project?
Typically, a .NET development company in the United States takes about 2 to 6 months to complete a project. However, the timeline will ultimately depend on project scope and complexity, development methodology (agile, waterfall, and scrum), and team size.
Below is a timeline breakdown:
Research, discovery, and design: 2-4 weeks
Development: 4-12 weeks
Testing: 2-6 weeks
Launch: 1-2 weeks
How do I choose the right USA .NET development company?
To choose the right USA .NET development company for your business, consider the following steps:
Outline project goals, timeline, budget, target users, and technical requirements
Examine the agency’s service range and technical proficiency, especially in related technologies like ASP.NET, MVC, and Web API
Identify if the agency has case studies and portfolios on projects similar to yours
Read the agency’s positive and negative client reviews to assess its customer service strengths and weaknesses
Schedule an introductory meeting and inquire about security measurements, IP rights, and development approach
Select a US .NET development company that aligns with your budget, project requirements, and company culture
Struggling to find a US .NET company? Visit our Marketplace and send your project requirements. We will match you with companies that best meet your criteria — at no cost!
How do USA .NET development companies ensure quality results?
USA .NET development companies ensure quality results by implementing a comprehensive quality assurance (QA) strategy customized to your specific business objectives. The strategy typically includes a series of tests to verify the software’s end-to-end functionality, usability, security, interoperability, and durability. It also helps ensure that the final product aligns with your business requirements and meets industry standards.
Here are some of the QA tests that US .NET development companies employ:
Unit testing: Examines the software’s individual components, including module behavior, code-level functions, and error handling
User acceptance testing: Simulates real-world usage, such as user interaction and how well the app integrates with business processes and workflows
Integration testing: Assesses how the different system components interact with each other, including how data flows and how third-party systems work together
Regression testing: Analyzes the stability and functionality of the app after a bug has been fixed