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
1,230 Companies - Rankings updated: August 14, 2026
All agencies on DesignRush undergo evaluation based on professional expertise and verified client reviews. Please note that certain placements are paid partnerships.
Growth isn't for everyone. We partner with brands that refuse to blend in.
Growth isn't for everyone. We partner with brands that refuse to blend in.
Projectsity aims to provide affordable marketing and branding solutions with complete satisfaction and security, making lives while ensuring safe business operations and maximum profits & ROIs...
At Apt Tech Studio, we believe that technology should work for you, not the other way around. Founded with the mission to simplify complex challenges, we offer a comprehensive range of software solutions designed to optimize business operations, drive innovation and create sustainable growth. We're on a...
We deliver high-impact, scalable solutions by turning complex systems into efficient, reliable platforms.
We help businesses cut through complexity and deliver software that performs, scales, and drives real results...
Designing Digital Success, One Creative Pixel at a Time.
Designing Digital Success, One Creative Pixel at a Time.
We are your partner in digital success. We got your back, from creative logo, powerful websites, branding to digital marketing solutions. We help businesses elevate their online presence and help them connect with their audience effectively.
Let's create, expand, and grow together!...
Digital Marketing That Turns Heads, Clicks, And Converts
Digital Marketing That Turns Heads, Clicks, And Converts
We are the digital partners for small businesses in the US, Canada, Europe, and Australia. Specializing in expert SEO, AI-powered marketing, and performance optimization, we help you achieve real, measurable growth...
White Rabbit emerges as a prominent creative design agency based in LA, renowned for its team comprising highly skilled individuals dispersed globally. Leveraging diverse international perspectives and extensive creative backgrounds, our agency gains a distinct edge, allowing us to curate stunning designs...
Our team of expert software engineers leads our clients through the product development process, laying out clear expectations and goals to hasten the product's time to market...
Best AI-powered solutions for custom healthcare software development
Best AI-powered solutions for custom healthcare software development
IT Medical consistently offers transformative solutions as a custom software development firm, engineering AI-powered platforms that optimize healthcare workflows and elevate patient outcomes. Dedication to clinical-grade automation and HIPAA compliance keeps our solutions ahead of the curve...
Rhillane Marketing Digital is a comprehensive digital marketing agency dedicated to delivering exceptional services that drive business success and growth. Our team of specialists excels in various domains, including Digital Marketing Strategy, Web Design, UI/UX, SEO, Graphic Design, 2D/3D Animations, Social...
Renaissance Marketing is a premium digital marketing & SEO agency based in Tampa with a Richmond hub, serving clients nationwide. We align SEO, web design, CRO, PPC, and programmatic to build predictable growth for mid-market brands and agencies...
Were (spark), a full-service production agency with speed, agility, and a collaborative spirit.
We help you craft compelling stories people want to hear and deliver them on the right channel, at the right time, to the right person. Getting your brand ready to act when that magic moment strikes that...
Build Grow Scale stands as a trusted leader in e-commerce conversion rate optimization (CRO) with over a decade of experience. Their innovative Revenue Optimization process focuses on enhancing the entire customer journey to maximize conversions, elevate average order value (AOV), and minimize cart...
Our PORTFOLIO INCLUDES marketplaces, e-commerce, workflow automations, AI assistants, corporate websites, banking apps, data warehouse initiatives, and more...
AI-driven custom software development for complex, high-growth industries.
AI-driven custom software development for complex, high-growth industries.
NEKLO is an international custom software development partner. Since 2008, weve specialized in building and scaling digital products for high-stakes industries, including Healthcare, Fintech, Energy, and Construction...
Sadja WebSolutions is a digital agency focused on creating custom websites, mobile apps and digital marketing to grow brands online. We help companies around the world increase their online presence and ROI through design, development and online marketing...
Globally Recognized Digital and Engineering Solutions Partner.
Globally Recognized Digital and Engineering Solutions Partner.
Named Best AI Company and Software Development Company by The Netty Awards, Opinov8 is a global technology firm with development hubs across the United States, Europe, and Egypt...
At Tecaudex, we architect custom digital solutions from lean MVPs to full-scale web and mobile apps that transform complex operational challenges into streamlined, growth-driving software...
K Squared Consulting is a full-service digital agency built by two former tech company operators who spent a decade on the other side of the table hiring agencies, getting burned, and wondering where the money went. We build websites, run SEO, manage paid ads, create content, and develop brand identities for...
Estes Media is a full-service, done-for-you B2B digital marketing agency. We handle everything from branding, SEO, content creation, and advertising to , web design, and social media managementso you can focus on running your business. Our transparent, goal-aligned approach ensures your digital presence...
Mageplaza is a top-rated e-commerce extension & solution provider on the Magento & Shopify platforms
Mageplaza is a top-rated e-commerce extension & solution provider on the Magento & Shopify platforms
We are here to make the world of e-commerce a better place with our knowledge, innovation & dedication.
At Mageplaza, we're not just another tech company. We're your dedicated partner in crafting amazing online shopping experiences...
Powering businesses with cutting-edge IT solutions. Your success, our mission.
Powering businesses with cutting-edge IT solutions. Your success, our mission.
Techx4u, Inc is a leading IT solutions provider, specializing in managed IT services, cybersecurity, and cloud computing. We empower businesses with innovative technology solutions tailored to their unique needs, ensuring seamless operations and robust security. Based in Sri Lanka with branches in the United...
TucsonBizz is a leading web design company Tucson, AZ, USA. Its offering custom website design, resposive web design, mobile friendly design, mobile app design for your business and mobile Apps. Contact us now for hire web designers...
We help you find the best remote developers in the world so that you can focus on what you do best, building the future. Offering smart contract, software, and website development services. Expert engineers at a fraction of the price. By building a global development team you get the utility of having a...
At Appstract, we specialize in crafting solutions that deliver unforgettable user experiences by leveraging innovation and adhering to best practices in mobile and web application development and design. Our mission is to ensure that every interaction with our products leaves a lasting impression, driving...
Tarika Group offers comprehensive Managed IT and digital solutions for SMBs, startups, and enterprises, ensuring secure, scalable, and cost-effective business growth...
AwsQuality is a technology consulting company helping businesses design, build, and scale reliable digital solutions. We work across Salesforce, AI, Cloud, DevOps, Mobile, and Web delivering measurable outcomes through engineering quality, transparency, and long-term partnership...
Iflexion is a global software and web development company providing full-cycle services in the areas of content management solutions, portals, ecommerce, web-based enterprise solutions, media content distribution, social software. With a decade of experience the company accumulated solid expertise in...
VIVIDSITES is a long-standing, full-service digital marketing agency dedicated to innovation and providing exceptional service. With our ability to build custom or third-party software solutions at an affordable price point, we ensure organizations get the most out of their investment...
WeCT offers a unique set of skills to help you realize your goals and understand the complexities of technology. A passionate blend of experience, expertise, creativity and an ear for listening makes us stand out among other web design & development teams in Jersey City & New York City area. We'll partner up...
Los Angeles' Premier Medical & Dental Marketing Agency
Los Angeles' Premier Medical & Dental Marketing Agency
LA's premier medical & dental marketing agency. We work exclusively with doctors and dentists in Beverly Hills and Southern California. HIPAA-compliant SEO, AI patient acquisition, and our proprietary Z-PAP system. Real results, verified...
ReWeb Design is a distinguished web design agency renowned for its expertise in delivering tailored website design solutions to small businesses. With a focus on precision and creativity, we strive to empower our clients with captivating online presences that drive growth and engagement...
TecSmiths is based in Liverpool, TecSmiths is a leading SEO agency dedicated to helping businesses across the UK boost their online visibility and achieve sustainable growth...
XeoDev is a full service chatbot solution, AI, web, apps & software development agency. several of our clients are in the start up or next stage of growth...
Bitsclan offers AI/ML, chatbots, AI agents automation, blockchain and custom software development services. Partner with top-rated developers and grow faster...
RACAILLE is a software development firm dedicated to crafting bespoke digital solutions for ambitious businesses. RACAILLE emphasizes clean code, robust architectures, and direct client collaboration to deliver high-impact results...
The Design LLC is a results-driven digital agencycrafting modern websites, powerful branding, and smart marketing solutions to help businesses grow and stand out online. We create high-impact digital experiences through innovative designs...
We're a global team of developers, designers, and problem-solvers creating impactful software since 2007. IT-Dimension builds future-ready software from AI and IoT to mobile, enterprise, and 3D solutions...
For over 25 years, OmniSpear has delivered custom web, mobile, and e-commerce solutions, helping businesses streamline operations, boost efficiency, and drive growth across industries...
vativeApps delivers custom and ready made mobile apps, from TikTok and Bigo Live clones to food delivery and dating solutions, backed by AI and full transparency...
Tabdelta is a global AI-driven software development company in New York USA delivering innovative digital solutions to startups, SMBs, and enterprises across New York and worldwide...
Dycoders team creates solutions for tech industry from startups to businesses, and have a proven track record of providing development services to over 50 companies. Dycoders is not just a developers hub but has digital designers who can make top quality softwares including mobile apps...
You're good at what you do. The problem is that online, the customers searching for you can't find you, or they find a competitor first. Omega Trove fixes that. We don't sell a logo this month and an ad campaign the next. We build one growth system: a brand people trust, a website that turns visitors into...
At SoWeb, we design and build professional websites, mobile apps, and digital experiences that look great, perform fast, and deliver real business results...
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