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
Each agency listed on DesignRush is assessed for industry expertise and customer testimonials are evaluated in order to provide you with a vetted selection. Certain listings represent paid partnerships.
Spending Money and Other Resources carefully and not wastefully
Spending Money and Other Resources carefully and not wastefully
Thriftizer Solutions drives the businesses to ease up the burden of E-Commerce functions by taking advantage of sophisticated technology solutions by using shopify web design and development, SEO, web automation testing etc...
Tenet is a top UI/UX design, web development, and growth marketing company helping brands achieve digital transformation. With over 450 projects completed across 15+ industries, including healthcare, retail, and tech, Tenet delivers innovative solutions that drive measurable results...
A leading Salesforce Consulting Company with more than 2000+ projects delivered and a Salesforce Crest & MSP partner, HIC Global Solutions specializes in end-to-end Salesforce consulting and cloud-based custom solutions for growing businesses...
A conscientious team delivering consistent results.
A conscientious team delivering consistent results.
Sandcastle is a full-service web design and development company specializing in e-commerce, custom application development, mobile technologies, hosting and maintenance. Our capabilities focus on creating platforms tailored to meet the specific needs of your business. These include third-party integrations...
BrandAction Agency is a privately-owned agency that integrates and balances branding, demand generation and customer experience to help innovative companies connect more deeply and quickly with their customers for greater profitability and enduring value...
A highly recommended mobile app development company
A highly recommended mobile app development company
Blue Label Labs is a premier digital product agency, providing a comprehensive array of services to transform businesses in the digital realm. With a strong global presence, we specialize in mobile app development, especially iPhone app development, publishing app development, web design, and product...
STREAMS is an information technology company based in Virginia, United States of America. The firm offers full-service NetSuite ERP Consulting, Installation, Integration, and Maintenance. Our firm works with industry-leading systems like as Salesforce, Boomi, Celigo, and Workato as a consultancy partner...
Full-cycle software development services since 1997!
Full-cycle software development services since 1997!
Elinext is a global AI-powered software development company with 28+ years of experience. We build human-verified AI solutions and complex software for enterprises, SMEs, and startups across Healthcare, FinTech, ERP, CRM, IoT, and more...
PM Solutions specializes in advertising and content marketing for social media, websites, print, radio, billboards and blogposts. The focus is on brand promotion, SEO, increasing visibility, digital advertising and increasing target engagement...
We integrate, innovate, and elevate enterprise systems.
We integrate, innovate, and elevate enterprise systems.
Intellectsoft builds custom software, AI solutions, and dedicated engineering teams for enterprises and fast-growing businesses across the US and UK...
Axencia stands at the forefront of digital innovation, delivering intelligent marketing solutions that fuse creativity with data-driven precision. Our mission is to empower brands through personalized strategies designed for measurable growth and impact...
Zoolatech provides engineering excellencewhether you need team augmentation or complete product deliverytrusted by startups and Fortune 500s worldwide...
Nevina Infotech is an award winning Mobile & Web Application development company serving clients across the globe. Our goal is to offer our clients innovative solutions. We are renowned for our expert level high tech custom Web App development, Mobile App development and digital marketing services...
Since 1985. For millions of users.
Nexus Software Systems software development company helps businesses grow by providing effective custom software to achieve their business objectives. From complete Enterprise Resource Planning (ERP), Customer Relationship Systems Management (CRM), and Ecommerce systems...
We are a leading software development company with extensive experience in building custom enterprise systems, mobile applications and stunning websites. We have been helping global businesses and startups in adopting cutting-edge technology into their business strategies and developing profitable digital...
Concept Infoway LLC is a leading web design and development company in Greenville, SC, offering custom websites, mobile apps, SEO services, and Managed IT solutions. We help businesses of all sizes thrive online with tailored digital solutions to meet your unique needs...
Troy Web Consulting is a trusted guide for organizations, delivering high-quality, practical software solutionscustom web apps, mobile apps, and websiteson time and on budget. We specialize in solving business challenges through custom tailored software development...
Transform your business ambitions into measurable outcomes
Transform your business ambitions into measurable outcomes
Tech strategy advisor & delivery partner with 25+ years of experience. We deliver measurable results through a unique, AI-enabled advisory & delivery framework combining technological heritage with AI-driven optimisation to scale faster, with full governance and compliance...
Mangosoft is a top offshore software agency, offering web, mobile app, and enterprise development services. With a strong track record and a global presence, we have successfully delivered 250+ projects across 30+ countries. Our tailored teams of niche experts ensure optimal results, while our transparent...
What separates the Digital Marketing Professionals at BL Digital Enterprises from their competitors is the ability to customize solutions to each individual client. Because no two companies have the same objectives, the team at BL Digital Enterprises works with each customer to come up with a comprehensive...
VerifiedVerified by the DesignRush team for authenticity and credibility.
All-In-One E-commerce Technology Solution Provider: Because Every Click Matters.
All-In-One E-commerce Technology Solution Provider: Because Every Click Matters.
Vserve Ebusiness Solutions is an AI-powered Supply Chain Management and Ecommerce company with 10+ years of global delivery. We provide offshore teams, BPO, procurement, order and inventory management, customer support, and ecommerce solutions to reduce costs and improve efficiency...
Tepia is a software company founded in 2012 with over 30 years of experience in web and mobile app development. We are a passionate and agile team of developers, designers, and strategists who are consistently pushing the boundaries of technology...
AI-Driven SEO & Web Solutions That Grow Businesses
AI-Driven SEO & Web Solutions That Grow Businesses
SITE IT NOW is a leading AI-driven SEO and web development agency specializing in custom websites, mobile apps, digital marketing, and secure hosting. We help businesses rank higher, get discovered in AI search, generate more leads, and accelerate growth...
Since 1996, smartData Enterprises has been committed to exceeding customer expectations as a worldwide contract software development organization. Its software applications are designed with customer experience and feedback in mind...
Smart IT offers core IT development services and forms dedicated software engineering teams for long-term projects. Our talent has a rich background in competitive programming and gives us an edge when it comes to thinking outside the box. We guarantee 5 hrs of timezone overlap, regardless of your location...
Build Your Intelligent Enterprise Business Applications
Build Your Intelligent Enterprise Business Applications
Fingent is a global custom software development company helping businesses turn their digital ambitions into reality. With over 20 years of experience, we specialize in building scalable, secure, and innovative technology solutions that drive operational excellence and business growth...
Welcome to AppsNative SaaS Lab, We're not just another tech company; we are your partners in digital transformation. Our cutting-edge SaaS solutions are designed to elevate your business to new heights, streamlining operations, boosting productivity, and driving growth...
At TechTose, we turn ideas into impactful products with a focus on innovation in Web3, blockchain, and AI. At TechTose, we believe in the transformative power of technology. With over 9 years of industry expertise founders, we've carved a niche in delivering cutting-edge software solutions that empower...
Since 2002 in the software development business. Companies from 27 industries choose us.
Since 2002 in the software development business. Companies from 27 industries choose us.
With over 20 years of industry experience, Gecko Dynamics is a trusted partner for startups and enterprises. Our team delivers end-to-end solutions using Java, Angular, Flutter, and AWS. From ideation to post-launch support, we're dedicated to driving progress for our clients across industries...
Social Media & Paid Ads That Turn Followers Into Customers Not Just Vanity Metrics
Social Media & Paid Ads That Turn Followers Into Customers Not Just Vanity Metrics
VAW Media is a small (team of 3) full-service social media & paid advertising agency building strategy-first systems for real growth not vanity metrics. We manage organic content, Meta & Google Ads, and lead generation for businesses nationwide, turning followers and clicks into paying customers...
Founded in 2008, SoftTeco has evolved from a mobile app agency into a full-cycle software engineering company delivering web and mobile solutions. We apply AI-augmented development to improve speed, quality and cost efficiency, offering strong expertise and reliable partnership...
Partnering with innovators to create a healthier world through technology
Partnering with innovators to create a healthier world through technology
We're a product design agency developing custom software solutions for health, learning, and more. We partner with innovators to bring purpose to the digital world through what we make and how we make it...
Slick Web Studios: Where design meets excellence. We craft captivating visual experiences tailored to your brand. With a dedicated team and a commitment to perfection, we deliver innovative solutions that leave a lasting impact. Elevate your brand with Slick Web Studios today...
We create custom software solutions that transform your process, empower your people, and help you reach your vision. Our team of experts partner with you in a radically transparent process to understand your unique needs, then build a powerful software solution that is scalable, efficient, and cost...
Our SEO process of Strategize, Implement, Analyze, and Report. It effectively achieves a quick return on investment (ROI) in SEO projects. It is a structured and data-driven approach, and repeated monthly. We identify previous wins and start the new month with a well-defined strategy...
VerifiedVerified by the DesignRush team for authenticity and credibility.
Your spark, our fuel
Your spark, our fuel
Dreamers is a research, data science, and tech consultancy that specializes in building solutions for complex problems. We are based in sunny California, but we work remotely with clients from all over the world. We're engineer-owned and operated, meaning you'll get personal attention and quick answers...
ScalaCode is a leading AI software development company helping startups and enterprises build intelligent digital products. We specialize in Generative AI, AI Agents, LLMs, RAG, machine learning, cloud-native applications, and custom web and mobile software solutions...
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