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
627 Companies-Rankings updated: September 03, 2026
All agencies are evaluated on DesignRush for demonstrated expertise and authentic client reviews to support your decision. Certain placements are paid.
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...
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...
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...
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...
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...
At SoWeb, we design and build professional websites, mobile apps, and digital experiences that look great, perform fast, and deliver real business results...
Viral Pro Global (Private) Limited is a modern business solutions company that empowers entrepreneurs and organizations through digital education, web development, and online business services. We offer end-to-end support including e-commerce training, consulting, SEO, social media services, partnerships, job...
Genesis Technologies is your one-stop IT partner, offering bespoke development, testing, DevOps, and UI/UX solutions. With 14+ years of proven expertise, 1000+ delivered projects, and a perfect Job Success Score on Upwork, we are trusted by global clients to get it right, every time...
We are Wagento Commerce, not your run-of-the-mill eCommerce developers. Let us explain why. Wagentos reliable expertise is further enhanced by a team of certified developers, designers, and eCommerce strategists committed to delivering top-notch solutions. They help businesses optimize their online presence...
More than a digital storefront, we're a strategic digital solution partner with a decade-long experience. We help founders and entrepreneurs looking to design, develop and deploy digital solutions. When we founded ITL, we wanted to help businesses grow through technology that delivers real results. We are now...
PX Media is a full-service digital marketing and creative agency based in Pasadena, California. With 24 years of experience, the agency delivers tailored solutions across web design, SEO, PPC, branding, content marketing, and managed hosting. Known for its emphasis on transparency and results, PX Media...
Your One Stop, Website Design and Internet Marketing Partner
FDI Creative Services is Your One Stop, Website Design and Internet Marketing Resource. We have been providing web design and marketing solutions to companies around the globe since 1996. We offer creative and unique designs to each project we complete. No templates or canned websites here...
LA's Top WordPress, Webflow, and Shopify Digital Agency
Mouche is a digital agency blending human creativity with AI efficiency. We specialize in eCommerce, Shopify, SEO, and user-centric websites built on WordPress, Webflow, and Wix. Based in Los Angeles, we help brands grow by driving traffic, boosting conversions, and creating smarter digital experiences...
Cutting-Edge Web, Software & AI Development Company
TechVerdi a cutting-edge development company offering web, software, mobile app, and AI solutions to create scalable, innovative solutions for businesses...
VentureDive is an award-winning custom software development company dedicated to spearheading digital transformations for Fortune 500 companies across BFSI, CPG/retail, healthcare, transportation, logistics, and QSR industries through its expertise in the realms of Fintech, Data & AI, HealthTech, PropTech...
9MILLS helps businesses build, automate, and grow through custom software development, AI automation, web and mobile apps, and performance-driven growth systems designed to improve efficiency, visibility, and business results...
For two decades, our innovative digital products development agency has taken on a wide range of challenging IT services. We are masters at crafting custom software solutions and stunning web designs - anything from simple logo design to complex large-scale development projects! Let us help make your digital...
Atlatl is your data-driven growth partner, elevating brands with SEO, PPC & web design. Atlatl empowers startups, entrepreneurs, and established businesses to soar to new heights through tailored digital marketing and branding solutions...
Driving Organic Growth Through SEO, Local SEO & AI Solutions
RankMeHi is a results-driven SEO and digital marketing agency helping businesses increase online visibility, generate qualified leads, and grow revenue. We specialize in Technical SEO, Local SEO, AI-powered marketing, content strategy, keyword research, link building, and conversion optimization. Our mission...
AppCrops is a next-gen technology partner delivering end-to-end digital solutions for startups and enterprises. From interactive user-friendly iOS, Android or Custom Mobile applications to Web apps, ERP systems and custom software, we help transform ideas into high-performing digital products...
Marketing & Web Development Agency in US & Canada.
O2 Media LLC offers comprehensive digital marketing solutions in New York, USA, including graphic design (logo, UI/UX, marketing), digital marketing (PPC, email, social media), development (mobile app, web, CRM), and New York SEO services (local, e-commerce, GMB optimization). Their focus is on elevating...
Enovate LLC dba Enovate Solutions is a firm that specializes in the production of both software and media. offering comprehensive solutions for mobile, online, software, 3D, and Internet of Things technologies. We place a high priority on open and honest communication with our customers to ensure that we are...
Dezign is a web and app design agency that transforms bold ideas into elegant digital experiences. With over 10 years of experience, we blend creativity with functionality to deliver web and UI/UX solutions that drive real results...
Build smarter systems. Get found online. Scale operations with confidence
MTI Tech helps businesses improve their digital presence and daily operations through web development, SEO, answer engine optimization, CRM automation, digital marketing, IT consulting, and back-office support...
We build cost-effective, user-friendly WordPress websites and WooCommerce solutions designed for small business growth. Our search engine optimization (SEO) strategies ensure your site ranks well, helping you connect with more customers...
Digital Marketing Agency in USA | Web Dev, Local SEO, SMM
Digital Growth Catalyze LLC is a leading digital marketing agency based in the USA, specializing in web development and SEO. We help businesses enhance their online presence, drive organic traffic, and dominate search rankings in the U.S. market...
Building Exceptional Software. Delivering Exceptional Talent
Source Sphere LLC helps businesses grow by providing tailored IT services and staffing solutions. From connecting companies with the right talent to delivering custom technology solutions, we focus on driving efficiency, scalability, and long-term success for clients across industries...
We stack the most innovative technologies across Shopify, CRO, E-commerce, React.js, Node.js, Salesforce, WordPress, UX/UI, and Digital Marketing to deliver future-proof solutions that move businesses forward through Staff Augmentation and White-Labeling models...
6sense HQ offers custom software solutions for businesses of all sizes, providing expert services in web development, managed delivery, custom software development, dedicated team options and UX design. With a proven track record of delivering top-quality solutions, our experienced team is committed to...
SoftDoes builds custom software, AI, and web applications for mid-market companies that need enterprise-grade results without the overhead of an in-house team. U.S.-based leadership. Full IP ownership. No lock-in...
Best award-winning software development company in South Korea.
Time Tec South Korea is a top-rated, multi-award-winning software development company providing a full suite of services and solutions like mobile application development, software development, Microsoft Dynamics 365 development, web development, ServiceNow consulting, and cybersecurity consulting to small...
Engineered in the US based, delivered by a global team with more than 9 years of enterprise engineering experience and 800+ production systems behind us...
Twisty Designs is a Shopify Plus agency helping 78 figure DTC brands grow through high-converting design, personalization, and automation. Experts in Customily, Teeinblue, Zakeke, and Kickflip, we build scalable, real-time customization experiences that boost sales...
Coderio helps companies of all sizes, from Fortune 500 to SMBs, across the Americas accelerate their digital transformation. Their services are tailored to accomplish objectives through expert knowledge, problem-solving, and streamlining deliverables...
Custom Software Development Company with a US based team located in the Washington DC Metro Area. We're celebrating our 40 year anniversary! Our team of 30 developers and project managers provide decades of development experience in Python, .Net, PHP, Coldfusion, Java, Grails, IOS and Android apps...
VerifiedVerified by the DesignRush team for authenticity and credibility.
Build it. Run it. Own it.
Sketch delivers AI-enabled custom software and DevOps via a subscription model with two-week delivery cycles, citing zero missed deadlines. Its team serves Fortune 500 clients and is best suited for product teams needing a transparent, agile dev partner without long-term contracts...
Enhancing Quality Engineering through AI-Powered Test Automation
ImpactQA specializes in Robotic Process Automation (RPA) services to enhance business process automation. We leverage AI, RPA tools, and next-gen automation procedures to optimize your operations and reduce time-to-market...
Our Creative Portfolio Smarter Results Across the Web.
Design Sketchers is a comprehensive digital marketing service provider, dedicated to transforming your vision of online presence into a remarkable reality. Our emphasis lies in cultivating robust customer engagement strategies, ensuring an impactful and immersive online experience for your audience...
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