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
5 Companies-Rankings updated: September 04, 2026
All agencies are evaluated on DesignRush for demonstrated expertise and authentic client reviews to support your decision. Certain placements are paid.
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Aroma Kava
LastBid
Budu Sushi
Magento 2 Migration
Rite Space
Bookbreakrs
Can
Vivat
Udifo
ServisBook
Data sourced from the agency's DesignRush profile
Dinarys Reviews & Testimonials
André Schörnig
Marketing-Manager at myfelt GMBH
5.0★
eCommerce Development Review from André Schörnig
We have been working with Dinarys on our Shopify store for quite some time, and the experience has been great. From the very beginning, communication was clear, efficient, and reliable. The Dinarys team consistently delivered detailed proposals, stuck to agreed timelines, and offered well-structured solutions tailored to our needs. Their technical expertise is impressive, but what really sets them apart is their proactive attitude and genuine commitment to our project. Whenever we had questions or changes, they responded quickly and constructively. Its a true pleasure to work with a partner who feels like an extension of our own team. Highly recommended!
Nissrine Kohen
Sr. Backend Shopware Developers at H1 Webdevelopment
4.5★
Web Development Review from Nissrine Kohen
Weve been working with Dinarys for quite some time now, mainly collaborating on Magento and Shopware development projects. Their developers consistently show solid technical expertise and a good understanding of our expectations and workflow.
Communication is generally smooth, and response times are quick. Whenever issues arise, the team is open to feedback and acts quickly to improve. Over time, weve seen a positive evolution in their proactiveness and alignment with our teams way of working.
They are flexible and collaborative, and its clear that they genuinely aim to build long-term partnerships. For the quality delivered, we feel the pricing is fair and transparent.
All in all, weve been satisfied with our cooperation and would recommend Dinarys as a development partner, especially for companies looking for experienced backend developers in Magento and Shopware.
Andrew White
Review from Google
5.0★
Andrew White's Review Sourced from Google
I'm wasn't in the German office, but i had experience of communication with this company! I can say that it leaves the warmest feelings in the my heart! Guys you are the best!
Reviews verified by DesignRush and sourced from the agency's profile
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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...
Top Services:
Software Development
Mobile App Development
AI Development
Cloud Consulting
IT Services
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Location
White Plains, New York
Number of Employees
500 - 999
Average Hourly Rate
$30/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
5 Projects Listed
Fingent Services
Software Development
Mobile App Development
AI Development
Cloud Consulting
IT Services
VR/AR
Big Data Analytics
IoT
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Apollo Tyres
BBC Media Action
Royal Enfield
Raymond
Johnson &Johnson
Sony
NEC
Casenet
Premier Jets
SRV Canada
Data sourced from the agency's DesignRush profile
Fingent Reviews & Testimonials
Undisclosed
Owner at Consumer company
4.3★
Web Design Review from Undisclosed
I hired Fingent to create a web-based application for my website's visitors. They communicated their strategy effectively and adhered to our agreement. The pricing was notably low compared to other quotes I received. Ultimately, the project was a huge success, and they continued to provide support even after delivery. (Source: 3rd Party Review Platform)
Alex Burkhead
VP of Product at Findlay International
5.0★
Software Development Review from Alex Burkhead
Fingent brought both attention and creativity to our project. They polished our storyboard and developed the tool we needed. Very responsive and very talented.
Abraham Isaac
VP- Sales & Marketing at KOGLAND Commerce Pvt Ltd
4.2★
Software Development Review from Abraham Isaac
Though we faced a few glitches initially, the process is now smooth and running well. The effort taken by the management is quite appreciable and now we have an eCommerce site which is getting better by the day and also the number of trnxs have also gone up significantly.
It gives us grt pleasure to be working with Fingent and we look forward to completing this project at the earliest.
Reviews verified by DesignRush and sourced from the agency's profile
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VerifiedVerified by the DesignRush team for authenticity and credibility.
Fully integrated branding, web, and ad agency.
Headquartered in Pittsburgh and owner-led since 2013, were a creative back-boned agency that delivers world-class design and unparalleled technical excellence...
Top Services:
Branding
Web Design
Digital Marketing
Web Development
eCommerce Development
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Location
Pittsburgh, Pennsylvania
Number of Employees
Under 49
Average Hourly Rate
$200/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
5 Projects Listed
Top Hat Services
Branding
Web Design
Digital Marketing
Web Development
eCommerce Development
Print Design
Package Design
Creative Services
Advertising
WordPress Website Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Iron City Beer
Hop Culture
Wesley Family Services
Untappd
Alaskan Brewing Co.
Facebook/Meta
The Veil Brewing Company
Stone Brewing Co.
MailChimp
Allegheny County
Data sourced from the agency's DesignRush profile
Top Hat Reviews & Testimonials
Josey Orr
Review from Google
5.0★
Josey Orr's Review Sourced from Google
Ben and the Tophat team were fantastic to work with. They built our website quickly, professionally, and made the entire process easy from start to finish. Communication was clear, the final product looks great, and we’re very happy with how everything turned out. Highly recommend.
Adam Kunes
Review from Google
5.0★
Adam Kunes's Review Sourced from Google
I can’t say enough good things about Top Hat.
In a world full of AI slop and cookie-cutter creative, these folks actually care. The team is insanely talented, thoughtful, and willing to go above and beyond to make the work great.
I recommend them to everyone for design and development needs, and we’re beyond proud to showcase the websites they’ve helped bring to life.
James Ambrose
Review from Google
5.0★
James Ambrose's Review Sourced from Google
Top Hat was able to seamlessly establish a distinct identity that unequivocally reflects the mission of the company, its history and the vision of where its stakeholders aim to move in the future. By engaging in Top Hat’s full suite of services such as brand strategy, visualization, web design, and search engine optimization, our company is positioned for national growth and will succeed for many years to come. Top Hat’s team encouraged our stakeholders to think outside the status quo. Our robust new brand and website are proof the Top Hat team truly knows what it takes to execute a cohesive process from start to finish.
Reviews verified by DesignRush and sourced from the agency's profile
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At Big Fish, we are a team of technical experts based in the U.S. who design and build custom mobile apps...
Top Services:
Mobile App Development
Software Development
UI/UX Design
Location
Tampa, Florida
Number of Employees
Under 49
Minimal Budget
$25,000 - $50,000
Big Fish Services
Mobile App Development
Software Development
UI/UX Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Software & IT Services Industry
Retail Industry
Finance Industry
Data sourced from the agency's DesignRush profile
Big Fish Reviews & Testimonials
Eric Wexler
Review from Google
5.0★
Eric Wexler's Review Sourced from Google
Working with Big Fish App Development was a fantastic experience. Sara and her team were professional, helpful, responsive, and incredibly easy to work with throughout the entire project. Building an app or software can be a stressful undertaking but Sara really takes an organized approach and explains the process step by step. Her deep knowledge and expertise really showed, and she consistently met deadlines while being flexible enough to work at whatever pace was needed.
Big Fish was thorough, and always one step ahead — often thinking of things I hadn’t even considered, which made a huge difference in the App. Her input during the development process was invaluable.
I highly recommend Big Fish to anyone looking for a skilled and dependable app developer. If you are coming into this with little AppDev knowledge, just know that Big Fish is fair and trustworthy. I couldn’t have asked for a better team in bringing my app and ideas to life!
Swing Time
Review from Google
5.0★
Swing Time's Review Sourced from Google
These are really great people to work with, and they're based right here in Tampa Bay. I highly recommend Big Fish for app development.
Kym Jenkins
Review from Google
5.0★
Kym Jenkins's Review Sourced from Google
I've had really great experiences with Big Fish. Their attention to detail is only surpassed by the solid execution of app development with each project. One of the best app development companies that I've worked with, and I look forward to our next project together.
Reviews verified by DesignRush and sourced from the agency's profile
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Embark on your digital transformation journey with AccelOne's Software Development delivery model, strategically designed for optimal outcomes. Initiate your digital transformation seamlessly through our comprehensive nearshore and US-based services...
Top Services:
Software Development
Mobile App Development
Blockchain
UI/UX Design
eCommerce Development
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Location
Seattle, Washington
Number of Employees
100 - 249
Minimal Budget
$25,000 - $50,000
Portfolios Count
5 Projects Listed
AccelOne Services
Software Development
Mobile App Development
Blockchain
UI/UX Design
eCommerce Development
Web Development
AI Development
Staff Augmentation
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
HSBC
Xapo
University of Washington
Pan American Energy SL
Cartoon Network
Data sourced from the agency's DesignRush profile
AccelOne Reviews & Testimonials
Gustavo Lemos
Review from Google
5.0★
Gustavo Lemos's Review Sourced from Google
I've been working in AccelOne for several years already and it's an amazing place to work. Great people and a good variety of clients.
Reviews verified by DesignRush and sourced from the agency's profile
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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