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
1,069 Companies-Rankings updated: September 04, 2026
All agencies on DesignRush undergo evaluation based on professional expertise and verified client reviews. Please note that certain placements are paid partnerships.
Empowering Businesses with Trusted IT Solutions & Digital Innovation
Empowering Businesses with Trusted IT Solutions & Digital Innovation
We are a dedicated team of experts in web design, development, and mobile applications, committed to transforming your ideas into scalable and user-friendly software...
Whether youre looking to outsource a critical project or scale your technology team, SOLTECH can help. With nearly 30 years of experience and a forward-looking approach that leverages AI tools, we help our clients build smarter solutions and accelerate results...
Dastify Digital is a healthcare marketing agency driving growth via SEO, ads, and patient acquisition. HIPAA-compliant, data-driven strategies for US providers...
We turn service company expertise into assets that generate demand.
We turn service company expertise into assets that generate demand.
Animus Digital is a Tulsa-based creative agency for B2B, industrial, Oil and Gas, and Manufacturing companies. We build websites, run SEO, and produce content that turns hard-won expertise into a steady pipeline of qualified demand...
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...
Let's Make Google Work For You. Generating and Celebrating Marketing Conversions...SKOL!
Let's Make Google Work For You. Generating and Celebrating Marketing Conversions...SKOL!
When it comes to marketing, scoring points is good, but winning the game is everything. Join forces with the skilled team of Skol Marketing. We will guide you in making the right moves to outshine your competition...
Full Service - Mobile App, Software & Web Development Company
Full Service - Mobile App, Software & Web Development Company
Mystic Media is a full-service technology agency specializing in custom software, mobile app, web, and firmware development. Our experienced team works closely with startups, growing businesses, and enterprise organizations...
Wakefly provides online marketing and technology services included Biotech, Search Engine Marketing, Web Design, Web Development, PPC, SEO, Display Advertisements, and Social Media...
Intertech is a company specializing in various IT services, offering expertise in planning, architecture, design, implementation, development, quality assurance, testing, version control, documentation, and deployment of software projects...
SquareHook is a Utah based Cloud Operations and Development company. Through our IT-as-a-Service solution we can setup your cloud environments, develop new tools and manage your services to increase your business productivity...
A team-based search marketing agency working with companies across the country, Portland SEO Consultant runs three core services from its home base in Oregon: SEO, AI search optimization (AIO), and Google Ads, with local and national organic search handled under the SEO side. Copywriters, developers, link...
Engineered for Innovation. Built to Scale. Designed to Last.
Engineered for Innovation. Built to Scale. Designed to Last.
At North Star Technology, we engineer strategic digital ecosystems that empower businesses to scale, compete, and thrive. From custom WordPress websites to IT infrastructure, automation, and Microsoft 365 solutions, we create technology-driven strategies designed for long-term success...
Americaneagle.com is essentially a one-stop shop offering a comprehensive range of options for anyone wishing to thrive in their online pursuits. A family-owned, privately held business with a proven track record of success and reliability is Americaneagle.com...
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...
Empowering businesses with intuitive software that grows as fast as your needs do.
Empowering businesses with intuitive software that grows as fast as your needs do.
Susco Solutions: Your growth-oriented .NET software partner. Specializing in intuitive solutions for mid-market enterprises. Collaboration and adaptability are our strengths...
At KDG, we're your full-service partners in growth and innovation. With our integrated approach to professional technology, accounting, and consulting services, we give modern leaders and executives control over their outcomes...
Australia's leading & most awarded full service agency
Australia's leading & most awarded full service agency
Welcome is a full service agency delivering brand, strategy, social media, digital, marketing, content, technology & development, data solutions - 100% in-house & under one roof. Our award winning teams craft integrated solutions that drive growth, impact & measurable success. You are Welcome...
We are a Lancaster, Pennsylvania-based digital marketing firm that uses powerful design, compelling content, thoughtful functionality, and proven internet marketing techniques to improve our clients' site rankings, traffic, and lead generation...
Purpose-Driven, People-Centric Software Development Designed to Wow.
Purpose-Driven, People-Centric Software Development Designed to Wow.
Software, IT, and HR Tech solutions for all of your needs. Vincit is an award-winning development and design company. We build tailor-made, results-driven e-commerce platforms, foodtech solutions, mobile apps, web services, and embedded systems. We excel in composable software, and coupling backend...
Digital Marketing & Web Design for B2B, Healthcare, Education & Manufacturing.
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...
2026 Webby Award Winner! Raleigh, NC marketing agency, web design company, branding agency, paid search, SEO / AEO, digital compliance / web accessibility consultant + web application development company...
Strategic UX and design.
Bespoke, multi-platform programs.
Connection and engagement.
Authentic storytelling and public relations.
Leveraging our experience, humility, and values, Anomali by Design connects with peoplewherever they're at, agnostic of circumstance...
With a wealth of experience as WooCommerce developers, we specialize in offering a diverse array of services meticulously crafted to enhance your digital presence and drive exceptional outcomes...
US Digital Partners is a digital execution agency that helps mid-market businesses and enterprises refine and grow their brand and marketing efforts...
Emergent Software is a full-stack technology solution provider specializing in the Microsoft ecosystem. We partner with our clients to modernize business operations with Microsoft-focused cloud transformation, custom software development, and data engineering...
UX design and research for brain change, aging, and care
UX design and research for brain change, aging, and care
We design easy-to-use products, websites, and apps for AgeTech, brain change, and care. We bring specialized user experience expertise to founders, product teams, and MarCom leaders. If you're building for older adults, care partners, and the professionals who support them, we should talk...
Sembit is a seasoned software development company based in Oregon. Its expertise spans app development, cloud services, and platform integration, making the agency a versatile software development partner. With proficiency in diverse technologies and a commitment to fostering a positive work environment...
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...
agencyQ is a multi-award winning, full-service digital transformation agency based in DC. We draw upon our knowledge of technology, strategy and design to craft unique solutions that have a real-world impact—from groundbreaking applications to exciting digital experiences...
Dragon Army is a digital engagement agency that grows admired brands through web, mobile, AR, VR, content, and games. We've been delivering digital product solutions for the world's biggest brands for over 11 years, across a variety of technology platforms and third-party services...
FIG offers an innovative approach to the traditional agency model by providing smarter and more agile solutions that benefit clients. Our team is devoted to developing creative strategies for success, delivering exceptional results each time...
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...
AndPlus is a technology consulting and development company that empowers clients to accelerate their digital transformation by bridging the gap between strategy and execution. Our custom Agile development process combines extensive business and technical knowledge to swiftly implement digital transformation...
Mighty Citizen is a creative agency that transforms mission-driven organizations through branding, marketing, and digital communications. They help nonprofits, associations, universities, and governments increase their impact and revenue by creating deeper connections with their audiences using data and...
Creative Support For Your Business At an Affordable Cost.
Creative Support For Your Business At an Affordable Cost.
MAG-RAW Creations is a Dallas-based creative studio specializing in innovative film production, design, and technology solutions. The studio excels in crafting high-quality video content and digital designs tailored to modern trends and client needs. With a focus on cutting-edge and traditional approaches...
We help B2B companies turn complex services into high-performing sites through beautiful design.
We help B2B companies turn complex services into high-performing sites through beautiful design.
Axamo is a Webflow Professional Partner specializing in beautiful, conversion-focused websites for B2B teams. We've partnered with 35+ companies like ColdIQ, Flosum, & Coverbase. We work primarily with enterprise SaaS, Dev/Web Ops, Data/Cybersecurity, and Professional services...
An award winning creative & digital agency with purpose in mind
An award winning creative & digital agency with purpose in mind
Creative agency that makes a difference. We're small enough to take real pride in each and every job we do, yet agile enough to take on projects of all sizes. We don’t strive to merely be good. We don’t want to simply be great. We want to be greater than anyone you’ve ever worked with. And we want you...
Founded in 1997, BayCreative is a San Francisco based B2B marketing, branding, and digital agency. With a compact team of fewer than 50 professionals, the firm acts as a full-service marketing department in a box for tech companies, offering integrated creative strategy, content, web, video, and campaign...
Since 1997, more than 1,000 B2B and B2C companies worldwide have trusted Northwoods to lead, develop and execute more than 5,000 digital strategies, digital marketing and advertising initiatives, websites, and software projects...
Headquartered in Pittsburgh and owner-led since 2013, were a creative back-boned agency that delivers world-class design and unparalleled technical excellence...
Sensation Solutions is one of the best companies, well-defined to offer customer-centric B2B and B2C services & indigenous products for various industry verticals such as digital services, IT services, gaming, travel, business consultancy & legal services. We have a team of experts that leaves no stone...
Kilvington Digital Marketing: Exclusive Focus, Maximum Results.
Kilvington Digital Marketing: Exclusive Focus, Maximum Results.
Tired of generic marketing? We partner with one business per service area, delivering laser-focused strategies & data-driven results. Get unmatched expertise, content that converts, & measurable success. Don't settle for shared success. Contact Kilvington Digital today!...
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