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
1,197 Companies - Rankings updated: June 29, 2026
DesignRush vets all agencies based on professional qualifications and verified customer feedback to help you choose confidently. Some featured agencies maintain paid sponsorships.
Entrust the development of your business-critical software to professionals
Entrust the development of your business-critical software to professionals
Polytech Software is a Ukrainian software outsourcing company that sets up and runs world-class software development teams. We have staffed thousands of software engineering positions. [... view Polytech Software profile ]
LTS Group is a reliable Vietnam IT outsourcing company with 7+ years of experience in software development, software testing, and digital BPO. [... see all LTS Group reviews ]
Kaizen Apps specializes in innovative application development, offering personalized consultations to turn your ideas into impactful digital solutions. Start your project with our expert guidance today. [... see all Kaizen Apps reviews ]
Pranshtech Solutions Pvt Ltd. is a global, full-service IT solution company specializing in web, mobile apps, software, AI/ML, UI/UX, and QA services. We specialize in delivering cutting-edge technology services and solutions tailored to meet the unique needs of businesses across various industries. [... see all Pranshtech Solutions Pvt Ltd. reviews ]
Indeema is a global IoT engineering company. Our team works across the entire technology stack, including firmware development, electronics engineering, cloud platforms, data processing, and web and mobile applications. [... see all Indeema Software reviews ]
Culyte Innovation, a leading web and app development agency in the United States, excels in delivering advanced digital solutions across various domains. Specializing in user experience (UX) design, web and app development, and digital marketing, the agency integrates cutting-edge technology to drive online [... see all Culyte reviews ]
Powering Smart Digital Experiences Across Mobile, Software and Web
Powering Smart Digital Experiences Across Mobile, Software and Web
8ration drives digital innovation with 10+ years of excellence. As a leading Web Design & Development Company in the USA, we deliver powerful digital solutions across Web Development, Mobile App Development, Blockchain, AI Innovations, and scalable SaaS Platforms. [... view 8ration profile ]
The Design and Development Studio That Translates Your Personality Through Digital Experiences
The Design and Development Studio That Translates Your Personality Through Digital Experiences
Zajno is an international digital design and development studio. We translate your personality through digital experiences and even more. Our forte is to create unconventional websites and apps with cutting-edge custom graphics, photos, videos, and animations. [... view Zajno Crew profile ]
With Anadea, you'll experience tailored Software Development that transforms ideas into intuitive web and mobile solutions users embrace. Our insight-driven tactics deliver measurable success in custom apps, UI/UX design, AI integration, and quality assurance—empowering your tech business to innovate and [... see all Anadea reviews ]
Elevate your business with Web Trending Solutions! Specializing in bespoke website design, SEO, digital marketing, and expert accounting and tax services, we empower your growth in Washington and nationwide. Focus on your strengths; let us manage the complexities. Join us to redefine success. [... see all Web Trending Solutions reviews ]
Red Apple Technologies is a leading Game and App Development company. We help clients build their apps and games with a design led thought process and customized software solutions. We offer multiple engagement models like- fixed-cost projects or dedicated hiring options. [... see all Red Apple Technologies reviews ]
Softude is a top AI agent development company in the USA, delivering intelligent AI systems and enterprise software solutions to businesses globally. CMMI Level 5 appraised. 20 plus years of experience. [... see all Softude Infotech Pvt Ltd reviews ]
Zyne Ventures is a technology and professional services solutions provider. Our unique approach to unraveling efficiency, digitization, and customer-centricity, enables our clients to envision, build and run more innovative and efficient businesses. [... see all Zyne Ventures reviews ]
We are a consultancy and software development company that provides cutting edge engineering solutions. We have helped Fortune 500 companies untangle complex issues during their digital evolution journey. Since 2010, we have proved that we are a visionary organization and a reliable software engineering [... view Vaival Technologies profile ]
Star Knowledge is a globally recognized bespoke software development company with 10 years of experience across mobile, performance testing, web and cloud technologies, and manage IT services, We're a Microsoft Gold Partner widely preferred for complex to simple cloud computing & cloud migration services. [... view Star Knowledge profile ]
The Builders Agency is a results-driven digital marketing company specializing in SEO, Website Design, Paid Advertising, and Social Media Management. We help service-based businesses grow their online presence, generate quality leads, and turn digital strategies into measurable results. [... view The Builders Agency profile ]
Founded in 2005 in Reading (UK) Naxtech is a Digital Agency focusing on helping businesses grow, increase profitability, while attracting new customers via the effective use of technology and digital marketing. [... view Naxtech profile ]
You choose 10turtle to build digital confidence, clarity, and conversions partnering with a team that knows your digital presence should work harder. Nothing more, nothing less. [... see all 10turtle reviews ]
First Line Software is a global AI services and technology partner helping organizations become AI-First.Since 2010, weve worked with enterprises and high-growth companies to design, build, and scale custom software and AI-driven solutions that deliver measurable business outcomes. [... see all First Line Software reviews ]
Brand Surge LLC is a full stack digital marketing agency. We help small to medium businesses to grow and scale to the next level. We take these small businesses to grow organically and get them leads through paid advertising. [... see all Brand Surge LLC reviews ]
Award-Winning AI Consultancy & Custom Software Development Company In UK & USA
Award-Winning AI Consultancy & Custom Software Development Company In UK & USA
Geeks Ltd is an award-winning AI consultancy and custom software development company. With 18+ years of experience and 1,500+ projects delivered, we help business leaders in Transport & Logistics, Construction, Manufacturing, Energy, Education, and Government harness AI to improve efficiency. [... view Geeks profile ]
APPSNATION is the USA's top leading mobile application development company providing multiple Mobile App development services in IOs, Android, IoT, AR/VR, Games app development, Cross-platform, Wearable, eCommerce and much more. Contact Us to boost your Company's potential for next-level excellence. [... see all AppsNation reviews ]
NCrypted Technologies is a software development company that specializes in HR tech. Its offers top-notch custom software solutions, both online and offline, to a wide range of businesses. This includes startups, SMBs, and large Fortune Global 1000 enterprises. Its reach spans across the globe in over 100 [... view NCrypted Technologies profile ]
Active Logic is a premium custom software development agency with 100% US-based software engineers. We locally staff our offices with Senior Software Developers and we strive to deliver exceptional digital products through active communication and collaboration with our clients. [... view Active Logic profile ]
We're looking for businesses that need a strong online presence. You can expect your rebuilt or new website to utilize organic and paid SEO to reach search ranking goals, engage on social media platforms, run targeted online ads, deliver monthly blog posts, create valuable content for marketing, and leverage [... view Design Data Concepts, LLC profile ]
Salesforce, Hubspot, Web and Mobile App Development Services
Salesforce, Hubspot, Web and Mobile App Development Services
Dean Infotech provides end-to-end, best and customised Salesforce and Hubspot CRM Development, Software Development, Website Designing & Development, and Mobile Apps Development. With a team of 100+ skilled professionals including developers, designers, and consultants possesses a deep understanding of the [... see all Dean Infotech reviews ]
We make almost every genre of application. You name it and we build it.
We make almost every genre of application. You name it and we build it.
We are "CodeQuality Technologies," India's most successful Internet software development firm with our headquarters in Ahmedabad. We also have a physical presence in other parts of the world, such as Sweden, Romania, Ireland, and Canada, among other places. [... see all CodeQuality Technologies reviews ]
Successfully helping world-class companies bring products & services to market.
Successfully helping world-class companies bring products & services to market.
"A well designed product brings users to your products. A well designed product user experience brings customers to your brand for life." — Lars Owens [... view Lars Owens Design profile ]
HSTK helps visionaries stack their digital teams and products with nimble and savvy consultants-not-coders and proven product development strategy to deliver successful custom software, web and mobile app solutions. [... see all Haystack reviews ]
Fluper has gained recognition for its exceptional and pioneering mobile application development services, catering to both iOS and Android platforms. As a global frontrunner, we spare no effort in delivering superior solutions. [... see all Fluper reviews ]
Softqube Technologies is a globally leading custom software development company. We offer you a complete range of IT services. [... view Softqube Technologies profile ]
OBCIDO Inc. is a global consulting and digital services firm founded in New York in 2021. We help businesses redefine their digital identity and accelerate growth through strategic consulting, AI solutions, GEO, high-performance websites, and results-driven digital marketing [... view OBCIDO Inc. profile ]
Expand, Sell, and Succeed with Our Tailored Digital Marketing
Expand, Sell, and Succeed with Our Tailored Digital Marketing
Danford Digital, based in Dallas, TX, is your full-service digital marketing partner, bringing innovative thinking and creative excellence to every online marketing project. We are dedicated to understanding your unique needs and believe in infusing a human touch into every digital campaign. With a commitment [... see all Danford Digital Marketing reviews ]
HashStudioz Technologies is an award-winning product development company providing innovative IT solutions to clients from startups to Fortune 500 firms. With a team of over 1,000 experts, they have successfully completed 200+ projects, offering advanced technologies such as IoT, Blockchain, Cloud Computing [... see all HashStudioz Technologies reviews ]
Debut Infotech is a leader in advanced technological solutions, specializing in AI, Blockchain, Smart Contracts, IoT, and mobile and web development. [... view Debut Infotech profile ]
Ajroni is a full-service web design, web development, app development, SEO, and digital marketing agency developing custom, SEO-optimized and mobile-responsive websites and apps that drive traffic, sales, and business growth. Top-rated on Google & Clutch for delivering quality results. [... view Ajroni Enterprises profile ]
Empowering Businesses with AI & Custom Development
Empowering Businesses with AI & Custom Development
Phenologix helps startups, SMBs, and enterprises build scalable software, automate operations, and accelerate digital transformation. With a skilled engineering team and over 14 years of experience, we deliver AI, automation, and custom software solutions that improve efficiency and reduce manual work. Our [... see all Phenologix reviews ]
The Provato Group is an IT services and technology solutions company in Brecksville, Ohio. We strategize, propose and provide IT solutions to companies locally and nationwide, and our goal is to ensure your specific IT needs meet your standards and requirements. [... view The Provato Group profile ]
Treeview builds AR, VR, and mixed reality apps for enterprises, with clients including Microsoft, Meta, Toyota, and Medtronic. Its work spans digital twins, immersive experiences, and AR navigation. The company is best for enterprises investing in spatial computing and XR product development. [... view Treeview profile ]
Grazitti Interactive, a global leader in digital innovation, offering AI-driven solutions to drive customer success. We specialize in Salesforce, marketing automation, analytics, and more, partnering with industry giants to deliver results-oriented solutions for clients. [... see all Grazitti Interactive reviews ]
Invest In The Future of Healthcare Software Development
Invest In The Future of Healthcare Software Development
QSS Technosoft excels in healthcare mobile app development. We harness the latest in tech innovation, ensuring that our apps offer efficiency, personalization, and utmost convenience. With QSS Technosoft, you're not just getting a service; you're investing in the future of healthcare. [... view QSS Technosoft profile ]
Technology Ally is your trusted ally in outsourcing software solutions. We specialize in building and maintaining web and mobile software solutions for small and medium-sized businesses. Our team is passionate about codes and logic, enabling us to deliver feature-rich, error-free, and high-quality solutions. [... view Technology Ally profile ]
We enable creative, startups, and Fortune 500s to realize their vision through software development, design, and strategy. [... view Squareball Studios profile ]
Using our software solutions, our clients make smarter decisions, streamline operations, and launch scalable products tailored to their industries. Digital Mettle blends deep technical expertise with a collaborative approach, delivering custom-built tools that solve real-world problems from automation and [... view Digital Mettle, LLC profile ]
Innovating Marketing in the White Space on the Edge of the Digital Verse
Innovating Marketing in the White Space on the Edge of the Digital Verse
The AD Leaf delivers AI-driven marketing and advertising solutions to help businesses grow through intelligent, integrated campaigns. [... see all The AD Leaf Marketing & Advertising reviews ]
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
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