Top .Net Development Companies in United States

4.6 avg. rating from 3,421 verified reviews

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

8 Companies - Rankings updated: September 03, 2026

Each agency undergoes DesignRush evaluation for professional expertise and genuine client satisfaction to assist your search. Some featured placements are paid.

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United States × .Net Development × Travel × $25,000 - $50,000 × Clear Filters

AllianceTek Inc.
Empowering AI Excellence

AllianceTek is a global software development and IT consulting company delivering AI, cloud, web, and mobile solutions with 20+ years of expertise...

Top Services:

Software Development

Mobile App Development

Web Development

AI Development

IoT

Show more

Location

Malvern, Pennsylvania

Number of Employees

100 - 249

Average Hourly Rate

$50/hr

Minimal Budget

$25,000 - $50,000

Portfolios Count

59 Projects Listed
AllianceTek Inc. Services

Software Development

Mobile App Development

Web Development

AI Development

IoT

CRM Consulting

eCommerce Development

IT Services

Staff Augmentation

Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Genpact

Zydus USA

NFL

Johnson-Johnson

Innosight

Vacation Innovations

CTDI

Money360

Yeshiva University

QNB

Data sourced from the agency's DesignRush profile
AllianceTek Inc. Reviews & Testimonials

Kristine Wilson Owner at KOMYOON Inc.

5.0 ★

Cross-Platform Review from Kristine Wilson

I've been working with AllianceTek for over five years, and they have been an invaluable technology partner. They seamlessly took over a complex project from previous vendors and have since played a crucial role in managing both our app and website. Their team is highly knowledgeable, resourceful, and adaptable, with expertise across various platforms. No matter the challenge, they approach each project with patience, professionalism, and a problem-solving mindset. Their ability to listen, provide clear solutions, and ensure smooth execution has made them a trusted extension of our team. Beyond their technical capabilities, what truly sets AllianceTek apart is their commitment to client success. They are responsive, proactive, and consistently go above and beyond to deliver results. I highly recommend them to anyone seeking a reliable, skilled, and collaborative development partner.

Kevin Labianco Founder at Plantrip

5.0 ★

Mobile App Development Review from Kevin Labianco

We recently worked with AllianceTek regarding an app update, and they were professional, timely, and responsive as usual. Would recommend again!

Ravin Vasani Review from Google

5.0 ★

Ravin Vasani's Review Sourced from Google

It's been great working in AllianceTek. User friendly working environment, I have learned so many things in this company. Management is very supportive.

Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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4.5 4.5 (2)

4.6 4.6 (14)
Alltegrio
AI/ML Consulting and Development Company

Alltegrio specializes in Custom AI Solutions Development . Generative AI, Machine Learning, Computer Vision, AI Assistants Development, Natural Language Processing, OCR Data, Data Annotation all tailored to your unique business needs...

Top Services:

AI Development

Software Development

IT Services

Business Consulting

Big Data Analytics

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Location

Delaware City, Delaware

Number of Employees

100 - 249

Average Hourly Rate

$50/hr

Minimal Budget

$25,000 - $50,000

Portfolios Count

20 Projects Listed
Alltegrio Services

AI Development

Software Development

IT Services

Business Consulting

Big Data Analytics

Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Real Estate

Retail

Healthcare

Fintech

Banking

Sport

Insurance

Data sourced from the agency's DesignRush profile
Alltegrio Reviews & Testimonials

Oksana Vobiachenko CEO at Neohiring

5.0 ★

Big Data Consulting Review from Oksana Vobiachenko

They worked on providing us with a comprehensive data architecture designed for scalability and security. A BI dashboard was created that allowed us to visualize key metrics from all our clients in one place, making it easier for us to get a comprehensive overview of our operations. They also set up real-time reporting capabilities that helped us respond to client needs faster and more efficiently. On top of that, Alltegrio recommended optimizations to our existing data pipelines, ensuring better data quality and improving decision-making. They also provided hands-on training for our internal team, ensuring we could manage and leverage the system without constant external support.

Yannick Berg CTO at Arbillion

5.0 ★

Big Data Consulting Review from Yannick Berg

Data Science and Analytics: Implemented models to enhance data-driven insights. Data Annotation: Optimized annotation processes for training models. Data Monetization: Developed strategies for extracting value from data assets.

Romit Karmakar Director at Capricon Technology

5.0 ★

Machine Learning Review from Romit Karmakar

To develop an AI-powered trading bot capable of analyzing market data, identifying trading opportunities, and executing trades autonomously to maximize returns and minimize risks.

Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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4.9 4.9 (14)
Solveit

Award Winner
100% Focused on Apps

We design and develop top-rated mobile and web apps for startups and SMEs. E-commerce, Healthcare, Marketplaces, and more. Our clients rate us for 5 out 5 - check out why!...

Top Services:

Mobile App Development

Software Development

Web Design

Design Services

AI Development

Show more

Location

San Francisco, California

Number of Employees

50 - 99

Average Hourly Rate

$45/hr

Minimal Budget

$25,000 - $50,000

Portfolios Count

30 Projects Listed
Solveit Services

Mobile App Development

Software Development

Web Design

Design Services

AI Development

Web Development

Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Hemie.se

RVista

Lifepal AB

Gumb

Jabal

MyRaceData

JobJob.md

Burger King

OIIO

Leviosa

Data sourced from the agency's DesignRush profile
Solveit Reviews & Testimonials

Mitya Smusin CEO at Yellow Systems

5.0 ★

Staff Augmentation Review from Mitya Smusin

Solveit managed our comprehensive eCommerce project, developing a full-featured web platform with Node.js and React technologies. The agency also created a Flutter-based mobile app for seamless data synchronization across iOS and Android devices. We were thoroughly pleased with Solveit's expertise and adherence to deadlines. It provided timely updates and communicated openly about our project's status. Solveit's proactive approach and transparency were exceptional, particularly during the staff augmentation process, where the agency efficiently matched us with qualified candidates and facilitated a smooth onboarding. We were satisfied with Solveit's high-quality work and exceptional support.

Anna Harissis CEO and Co-Founder at OUT CO

5.0 ★

Design Services Review from Anna Harissis

They have an incredibly hardworking team at affordable pricing. SolveIt has built the app earlier than expected, and they continue to complete new tasks within the client's budget and timeline.

Gabriel Sabadin Founder & CEO at LifePal AB

5.0 ★

iPhone Review from Gabriel Sabadin

We engaged SolveIt to develop a minimum viable product (MVP) app, including a user-friendly iOS design, an artificial intelligence (AI) model, and a monetization strategy while ensuring General Data Protection Regulation (GDPR) compliance and preparing for future integrations. Despite a tight deadline, SolveIt delivered the app on time and efficiently handled beta-testing within three months, allowing us to gather feedback and launch successfully. We acquired our first 1,000 users within a month of launching the app. SolveIt's team communicated effectively, addressed issues proactively, and maintained a high level of autonomy, bringing diverse expertise that greatly benefited our project. We appreciate the agency's dedication and professionalism.

Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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4.8 4.8 (7)

4.4 4.4 (7)

Kaizen Softworks
Developing Partnerships

At Kaizen Softworks, were here to make your business thrive with custom software solutions. Our team is a blend of skilled designers, software engineers and scrum masters who are dedicated to transforming your business challenges and ideas into effective software solutions...

Top Services:

Mobile App Development

Software Development

Software Testing

UI/UX Design

IoT

Show more

Location

Boston, Massachusetts

Number of Employees

50 - 99

Average Hourly Rate

$60/hr

Minimal Budget

$25,000 - $50,000
Kaizen Softworks Services

Mobile App Development

Software Development

Software Testing

UI/UX Design

IoT

Staff Augmentation

Product Design

Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
SmartSense by Digi

Blueport

CompTrain

SmartBorder

Livingston

CTM Travel

Data sourced from the agency's DesignRush profile
Kaizen Softworks Reviews & Testimonials

Mauricio Fleischer Dev Manager at CTM

5.0 ★

Software Development Review from Mauricio Fleischer

Working with Kaizen has been an overall joy and I would highly recommend them to anybody starting or already maintaining a software project of any kind.

Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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4.3 4.3 (1)
Alt Digital
Experts at Your Service

Alt Digital Technologies is a B2B service provider servicing end to end development, DevOps, Testing and e-commerce solutions for your business. We work efficiently in ATG, Java, React, Salesforce, WordPress and majorly all technologies...

Top Services:

Web Development

eCommerce Development

Mobile App Development

Software Development

Software Testing

Show more

Location

Florida City, Florida

Number of Employees

50 - 99

Average Hourly Rate

$25/hr

Minimal Budget

$25,000 - $50,000

Portfolios Count

8 Projects Listed
Alt Digital Services

Web Development

eCommerce Development

Mobile App Development

Software Development

Software Testing

Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Boeing Co

Etisalat

Neiman Marcus

Data sourced from the agency's DesignRush profile
Alt Digital Reviews & Testimonials

Undisclosed Product Manager at Aerospace Company

5.0 ★

Web Development Review from Undisclosed

It is a feeling of both ecstasy and pride to know that all these years of hard work from our team has delivered a website which is delivering a powerful experience designed to meet the needs of our distribution customers. I am proud of our team's effort and also to be a part of this team.

Undisclosed Product Owner at Manufacturing Company

5.0 ★

Software Development Review from Undisclosed

You guys are one of the most wonderful people to work with. And most supportive, hardest working. We couldn’t have done what we’ve done in the past 2+ years without this team. Don’t ever forget it your value. You’re absolutely brilliant. It’s been such an honor to be your PO.

Undisclosed Senior Manager, IT at Aerospace Company

5.0 ★

Mobile App Development Review from Undisclosed

I preferred Alt Digital Technologies over big companies because of the quality and the stability of their people.

Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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4.8 4.8 (5)
AccelOne
Accelone Advancing What's Possible

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

Show more

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 View All Reviews
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4.2 4.2 (5)

TechQuarter
Tech Up Your Game

TechQuarter is a custom software development company helping businesses accelerate growth through tailored digital solutions. Since 2014, we've partnered with startups and enterprises across finance, solar, healthcare, and mobility to deliver web and mobile apps, AI/ML systems, cloud infrastructure, and QA...

Top Services:

IT Services

Cloud Consulting

DevOps Consulting

Cybersecurity

Product Design

Show more

Location

Cheyenne, Wyoming

Number of Employees

100 - 249

Average Hourly Rate

$50/hr

Minimal Budget

$25,000 - $50,000
TechQuarter Services

IT Services

Cloud Consulting

DevOps Consulting

Cybersecurity

Product Design

Staff Augmentation

Software Testing

AI Development

Web Design

UI/UX Design

Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Suntria

ContentStatus

LittlePay

GoodLeap

Data sourced from the agency's DesignRush profile
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Enspirit
AI-Native Product Design and Engineering.

Enspirit is an AI-native product design and engineering studio helping enterprises and funded startups build digital products that scale. We combine product design, full-stack engineering, AI development, and advisory services in a single team, enabling faster execution from strategy to launch...

Top Services:

UI/UX Design

eCommerce Development

Web Development

WordPress Website Design

AI Development

Show more

Location

Austin, Texas

Number of Employees

50 - 99

Average Hourly Rate

$50/hr

Minimal Budget

$25,000 - $50,000

Portfolios Count

5 Projects Listed
Enspirit Services

UI/UX Design

eCommerce Development

Web Development

WordPress Website Design

AI Development

Mobile App Development

Software Development

Product Design

Digital Strategy

Web Design

Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Deem

Innovative IDM

Nike

Gritwell

Safe Decisions

Data sourced from the agency's DesignRush profile
Enspirit Reviews & Testimonials

Ali Rock Review from Google

1.0 ★

Ali Rock's Review Sourced from Google

Faced an unprofessional experience with Enspirit. HR initially responded quickly and asked for my details, but later kept delaying, saying the technical team was unavailable. After 15 days of waiting, I was told they are now only considering more experienced candidates. Wasted my time with unclear communication.

Narsi Reddy Review from Google

5.0 ★

Narsi Reddy's Review Sourced from Google

Working at Enspirit has been a journey of continuous learning and innovation. The leadership fosters creativity, values every idea, and supports a flexible work culture that empowers us with purpose and growth.

Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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4.3 4.3 (6)

Related Software Development Specializations in the US

Popular Services

Why People Trust DesignRush

Rated 4.8 on Google and 4.7 on Trustpilot, DesignRush Agency Directory is a reliable resource for finding .NET development companies in the United States. We owe this to our executive selection team, which follows a strict screening process when featuring agencies on the platform, assessing key performance indicators, like portfolio, client reviews, and industry reputation.

Learn more about DesignRush Agency Ranking Methodology.

Sources

DesignRush sustains a directory of over 40,000 agencies categorized by service category, location, expertise, and reviews. We build our database in two ways:

Our dedicated team of agency experts actively searches the web for top-performing companies. We then pull information from their websites, online presence, and client testimonials to verify their status and qualifications prior to listing.
The agencies listed get notified of their profiles on the website and they can choose to claim it or not, which suggests their availability for more collaborations.

Agencies can also reach out to DesignRush and must go through the verification process prior to being listed.

Frequently Asked Questions

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
Seek out awards, recognitions, and certifications
Send a request for proposal (RFP) to your top 5-8 candidates
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

Latest Trends Related to .Net Development

Software Development

We Compiled the Best USA .Net Development Companies for You

Empowering AI Excellence

AllianceTek Inc. Services

AllianceTek Inc. Reviews & Testimonials

AI/ML Consulting and Development Company

Alltegrio Services

Alltegrio Reviews & Testimonials

100% Focused on Apps

Solveit Services

Solveit Reviews & Testimonials

Developing Partnerships

Kaizen Softworks Services

Kaizen Softworks Reviews & Testimonials

Experts at Your Service

Alt Digital Services

Alt Digital Reviews & Testimonials

Accelone Advancing What's Possible

AccelOne Services

AccelOne Reviews & Testimonials

Tech Up Your Game

TechQuarter Services

AI-Native Product Design and Engineering.

Enspirit Services

Enspirit Reviews & Testimonials