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
11 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.
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ELEKS, a trusted partner for guaranteed software engineering excellence, quality, and transparency.
ELEKS builds custom enterprise software across fintech, healthcare, energy, and logistics, with 1,000+ projects delivered over 30 years. It serves Fortune 500 companies and names like DPD and Drax. The software development firm is best for mid-to-large enterprises needing complex software development...
Top Services:
Software Development
Mobile App Development
Cloud Consulting
Cybersecurity
AI Development
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Location
Chicago, Illinois
Number of Employees
1000 & Up
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
12 Projects Listed
ELEKS Services
Software Development
Mobile App Development
Cloud Consulting
Cybersecurity
AI Development
ERP Consulting
CRM Consulting
Product Design
Big Data Analytics
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Aramex
TAIT
Acino
GRTGaz
Autodesk
Blackboard
Havas
ESET
Eagle
teleologica
Data sourced from the agency's DesignRush profile
ELEKS Reviews & Testimonials
John Armstrong
Founder, CEO & CTO at Civex
5.0★
Software Development Review from John Armstrong
ELEKS was able to take our vision and help us deliver an app that empowers retail shareholders to make their voices heard. They’ve brought a depth and breadth of technical expertise and user experience design to challenge us on our assumptions on how people would want to interact with the app. From a mobile development perspective, we wanted to go to market with both an Android and an iPhone simultaneously.
Mark Battcock
Digital Communication Director at Imerys
5.0★
Software Development Review from Mark Battcock
We are very happy with our ELEKS partnership; the dedication of the team is exceptional. We would certainly recommend ELEKS and would be happy to work with them again. In fact, they continue to be our partner for the 2nd phase of the CDX project to add even more customer services to the website.
Huntly Christie
CEO at Christie Lites
5.0★
Software Development Review from Huntly Christie
What impressed me about ELEKS is the culture. There is a very strong culture of discipline and performance, and software is a profession where discipline is very important. Good software development can only happen with a strong work ethic, and I think the ELEKS team really understands that.
Reviews verified by DesignRush and sourced from the agency's profile
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Full-Cycle IoT and Software Development company
We deliver cutting-edge, scalable, and fully functional IoT hardware and software products and ecosystems that help clients achieve their specific objectives...
Top Services:
IoT
Software Development
Mobile App Development
AI Development
Big Data Analytics
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Location
California City, California
Number of Employees
500 - 999
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
24 Projects Listed
Yalantis Services
IoT
Software Development
Mobile App Development
AI Development
Big Data Analytics
IT Services
Cybersecurity
Staff Augmentation
Cloud Consulting
UI/UX Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
RAKwireless
Toyota Tsusho
KPMG
Healthfully
Orbis Systems
Lifeworks
Scholz Databank
123 Sourcing
Truhoo
Data sourced from the agency's DesignRush profile
Yalantis Reviews & Testimonials
Sergei Lishchenko
Director of Digital Experience and Innovation at Orbis System
5.0★
Fintech Review from Sergei Lishchenko
The exception team the client collaborated with brought in fresh ideas and innovative technologies previously unfamiliar to the client. For example, with Yalantis' guidance, the client's developers explore the Go language. The primary reason the client chose Yalantis is its strong organizational and project management skills. It's not just about the developers; Yalantis provides a comprehensive support framework, ensuring that a project manager is consistently present. (Verified via email)
Jason Jung
Senior engineering manager at Zillow
5.0★
Software Development Review from Jason Jung
Yalantis functions as an integral scrum team, supporting the development teams of a real estate firm. It created renovation project management tools that encompass a web app, a mobile app, and a backend system. Thanks to Yalantis, the client expanded development capabilities and achieved key short-term goals. Its quick integration was pivotal in launching various projects. Beyond delivering top-notch work, Yalantis emphasizes a culture that prioritizes the customer's needs. (Verified via email)
Roy D
Partner at RAKwireless
5.0★
Outsourcing Review from Roy D
An IoT manufacturer teamed up with Yalantis to craft an application, enabling users to manage their devices more efficiently. Utilizing Node.js and basing the architecture on Circulus, Yalantis delivered commendable outcomes. It is responsive to any development challenges, offering swift resolutions. The client appreciates Yalantis' proactive stance, impressive technical expertise, and practical solution suggestions. (Verified via email)
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Find the perfect solution
Lionwood.software is a software development company founded in 2017 that builds digital products through long-term, collaborative partnerships with organizations across Europe and North America. The company combines strong engineering expertise with a human-centered approach focused on transparency,...
Top Services:
Software Development
Mobile App Development
Web Development
Blockchain
Staff Augmentation
Show more
Location
Middletown, Delaware
Number of Employees
50 - 99
Average Hourly Rate
$35/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
19 Projects Listed
Lionwood.software Services
Software Development
Mobile App Development
Web Development
Blockchain
Staff Augmentation
IT Services
Web Design
Product Design
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Blue Fetch
Into University Partnerships
DS Apteka
Dizmo Inc
Lingon Certificates AB
Data sourced from the agency's DesignRush profile
Lionwood.software Reviews & Testimonials
Daria Hlavcheva
Head of Business Development at KeenEthics
5.0★
Chatbot Solution Review from Daria Hlavcheva
KeenEthics onboarded Lionwood Software to develop an AI-powered chatbot that could analyze photos of vehicle damage and provide an estimated repair cost for insurance company. The project focused on applying AI to a traditionally manual part of the insurance claims process. The solution needed to interpret car damage from uploaded images, identify relevant damage, and translate the analysis into a cost estimate that could support faster and more consistent claims assessment. Lionwood Software took ownership of the AI development and worked closely with the KeenEthics team to align the solution with the product requirements and insurance use case. Their team demonstrated a strong understanding of both the technical challenges of image-based damage assessment and the business logic behind insurance claims. They were proactive in discussing requirements, clarifying edge cases, and addressing dependencies throughout the development process. The resulting solution helped automate an important part of the vehicle damage assessment workflow, reducing the need for purely manual evaluation and creating a foundation for faster claims processing. Lionwood Software proved to be a reliable technology partner with the expertise to work on AI-driven products where technical implementation needs to be closely aligned with real-world business requirements.
Anonymous
General Manager at S+H TECHNOLOGY SA
4.0★
.Net Review from Anonymous
We outsourced application development work to this team. They proved to be reliable, precise, and competent, consistently delivering on time.
Anonymous
Owner at Fenix-plus
5.0★
Software Development Review from Anonymous
Fenix-plus appreciates Lionwood.software for delivering a comprehensive CRM system that effectively manages key operations, including inventory and staff management. The system has brought notable time and cost savings while providing valuable insights into employee and process performance. Lionwood.software’s dedication to regular updates and high-quality delivery within budget has been highly appreciated.
Reviews verified by DesignRush and sourced from the agency's profile
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Trusted IT Partner for SMBs & Enterprises Since 2001 | Dedicated Teams | Industry-Specific Solutions
Altoros is a 350+ person strong IT consulting and development group. For over 20 years, we've been assisting Global 2000 organizations in getting software products to market faster and reducing the cost of R&D experiments to enable stable business growth...
Top Services:
Software Development
Mobile App Development
Web Design
Web Development
Staff Augmentation
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Location
Pleasanton, California
Number of Employees
250 - 499
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
12 Projects Listed
Altoros Labs Services
Software Development
Mobile App Development
Web Design
Web Development
Staff Augmentation
Software Testing
AI Development
IoT
Cloud Consulting
Big Data Analytics
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Siemens
Toyota
Hitachi
Huawei
Denso
LikeFolio
Dealflo
iFit
Walmart
EQ Bank
Data sourced from the agency's DesignRush profile
Altoros Labs Reviews & Testimonials
Daria Stolyar
Manager at Custom Software Development Company
5.0★
Software Development Review from Daria Stolyar
We hired Altoros engineers as an essential extension of our client-facing internal teams. This was a tough decision because our reputation as a brand depends on the overall efficiency of our processes and we needed to make sure all risks are mitigated when it comes to delivery. Altoros has not let us down.
Together with Altorosians we successfully deployed a number of tough and technologically complex projects on time. So our collaboration is certainly set to continue.
Victoria Lewis
Director at Equine Affairs Ltd
3.5★
Software Development Review from Victoria Lewis
We enjoy working with our team, Roman Yurkin, Tatyana Kobzar, Svetlana Kalchanka and Tatiana Anop. They bring expertise and immense value to our business with each piece of work they complete. They are a major part of our business development and delivery.
Greg Lipper
Managing Director at Happi Pte Ltd
5.0★
Ruby on Rails Review from Greg Lipper
In my 30 years in the software business, I have never had as positive an experience with an outsourced development services provider as I have with Altoros. Each Altoros engineer we have worked with has been strong technically, estimated development times accurately, completed projects on time, and delivered code and projects with high quality. Beyond that, they have helped improve our thinking and approach with suggestions and ideas that were better than the spec of instructions we supplied.
Reviews verified by DesignRush and sourced from the agency's profile
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ELIFTECH thrives on taking a business idea and transforming it into a high-tech product. ELIFTECH designs, builds, tests, and launches software technology for a variety of industries. The company successfully creates software that connects people, devices, systems, and data in a seamless process...
Top Services:
Software Development
UI/UX Design
Web Design
eCommerce Development
Mobile App Development
Show more
Location
Wilmington, Delaware
Number of Employees
100 - 249
Average Hourly Rate
$40/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
10 Projects Listed
ELIFTECH Services
Software Development
UI/UX Design
Web Design
eCommerce Development
Mobile App Development
Web Development
IoT
Staff Augmentation
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
ClassWallet
Audiomachine
Windscribe
Xing
Data sourced from the agency's DesignRush profile
ELIFTECH Reviews & Testimonials
Olha Chura
Review from Google
5.0★
Olha Chura's Review Sourced from Google
We’ve partnered with ElifTech for more than four years, and they’ve consistently been a fantastic team to work with. Every project is handled with professionalism, clear communication, and a true dedication to delivering results. The team is proactive, quick to respond, and integrates smoothly into our processes, making collaboration effortless. Over the years, they’ve proven to be a reliable partner we trust to get things done right.
Христина Смоленська
Review from Google
5.0★
Христина Смоленська's Review Sourced from Google
Great company, very professional and responsible.
Always keep their promises.
I have just positive emotion during working with this company.
Reviews verified by DesignRush and sourced from the agency's profile
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Frogslayer is the custom software, AI, and automation partner for mid-market businesses in Texas. We work as a senior team on retainer AI consulting, strategy, automation, development, and implementation. Plans start at $2,500/month...
Top Services:
Software Development
Mobile App Development
Location
College Station, Texas
Number of Employees
50 - 99
Minimal Budget
$25,000 - $50,000
Frogslayer Services
Software Development
Mobile App Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
NCR
Wrigley
Texas A&M University
Microsoft
National Instruments
Lupl
Dunkin Donuts
AOPA
K2 Integrity
Schlumberger
Data sourced from the agency's DesignRush profile
Frogslayer Reviews & Testimonials
May Halpirn
Review from Google
1.0★
May Halpirn's Review Sourced from Google
Curious about another reviewer who looked older, a job applicant, who didn't have his call returned. Frogslayer slung cliche pablum his way. Apparently they hire Jr. Devs but do they hire over a certain age? Do they know the law? Their Senior Dev is under 30 and was hired from being a student employee. Curious and curiouser. Maybe Frogslayer isn't as woke as they appear. Friend of mine went through the ringer with them was told they'd get feedback either way. Instead they got the standard blow off rejection after devoting way too much time on a company that might not value "employees over a certain age." Heads up Frogslayer. There are laws.
Jared L
Review from Google
3.0★
Jared L's Review Sourced from Google
one of the only companies in town actively seeking real beginners/students to become junior level developers using all stacks and not focused on a particular one but most importantly not stuck with legacy tech debt.
Heath Phillips
Review from Google
5.0★
Heath Phillips's Review Sourced from Google
These guys are incredible at what they do. They helped me design a custom software that fit all of my companies needs. The time they spend understanding what my goals were was incredible. They also made tons of suggestions to control the cost. Highly recommend this team!
Reviews verified by DesignRush and sourced from the agency's profile
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At Appstract, we specialize in crafting solutions that deliver unforgettable user experiences by leveraging innovation and adhering to best practices in mobile and web application development and design. Our mission is to ensure that every interaction with our products leaves a lasting impression, driving...
Top Services:
Software Development
Mobile App Development
Product Design
UI/UX Design
Staff Augmentation
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Location
Coconut Creek, Florida
Number of Employees
Under 49
Average Hourly Rate
$30/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
4 Projects Listed
Appstract LLC Services
Software Development
Mobile App Development
Product Design
UI/UX Design
Staff Augmentation
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
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...
Top Services:
Web Design
eCommerce Development
Web Development
Software Development
Mobile App Development
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Location
New York City, New York
Number of Employees
100 - 249
Average Hourly Rate
$149/hr
Minimal Budget
$25,000 - $50,000
mejix Services
Web Design
eCommerce Development
Web Development
Software Development
Mobile App Development
Digital Marketing
Product Design
IoT
AI Development
Business Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
IT Industry
Small Business Industry
Commercial Industry
Data sourced from the agency's DesignRush profile
mejix Reviews & Testimonials
Yosi Arish
Review from Google
5.0★
Yosi Arish's Review Sourced from Google
We used Mejix for few projects in the past for e-commerce sites and mobile application integration with our ERP. The service and communication are great , fast and effective + project delivery were all on time and properly tested before implantation.
Guy Volo
Review from Google
5.0★
Guy Volo's Review Sourced from Google
I have used Mejix for several projects in recent years. From simple content websites to complex
e-commerce sites. I am incredibly happy with the way their work always comes out. They have always been a pleasure to deal with. On my recent project I worked with Dan and he was just great! I highly recommend using them from the very beginning as they have a vast and diverse expertise.
Reviews verified by DesignRush and sourced from the agency's profile
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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
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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
Mysoft Heaven (BD) Ltd. is a Top Software Development Company with 15+ years of excellence. We specialize in enterprise-grade solutions like ERP, FinTech, e-Governance, and HRMS (HR Sheba). Our scalable SaaS platforms and Cyber Security solutions empower global organizations...
Top Services:
Web Development
Digital Marketing
Mobile App Development
Software Development
Staff Augmentation
Show more
Location
Miami, Florida
Number of Employees
250 - 499
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Mysoft Heaven Services
Web Development
Digital Marketing
Mobile App Development
Software Development
Staff Augmentation
BPO
HR Outsourcing
Web Design
Digital Services
SEO
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Land Reforms Board, Ministry of Land
Bangladesh Agricultural Development Corporation
Bangladesh Scout, Ministry of Education
Bangladesh Bureau of Statistics (BBS)
a2i & UNDP
JICA+ NILG
Bangladesh Trade and Tariff Commission, Segunbagic
Alliance Group, Bangladesh
Centre for the Rehabilitation of the Paralyzed
JT Enterprises
Data sourced from the agency's DesignRush profile
Mysoft Heaven Reviews & Testimonials
Jahidul Islam
Review from Google
5.0★
Jahidul Islam's Review Sourced from Google
Coordination-focused role with cross-team interaction
Pros:
Regular interaction with developers, clients, and management helps build strong communication and coordination skills.
Cons:
Managing multiple stakeholders at the same time can be challenging.
Advice to Management:
Clearer role boundaries would help reduce dependency-related delays.
SAHED HOSHEN
Review from Google
5.0★
SAHED HOSHEN's Review Sourced from Google
"Choosing Mysoft Heaven (BD) LTD was the best decision! They combined innovation with flawless execution, delivering our project on time and beyond our expectations. Amazing work!"
SM Nasim Abbas
Review from Google
5.0★
SM Nasim Abbas's Review Sourced from Google
"I've been using There software for my small business, and I can't imagine going back to the old way of doing things. It has simplified so many tasks, saving me hours of work each week. Their support team is always there to help if I need anything!"
Reviews verified by DesignRush and sourced from the agency's profile
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We are an AI Consulting and Digital Transformation company that follows a collaborative and data-driven approach to deliver high-quality technology solutions for global enterprises...
Top Services:
Web Design
Mobile App Development
Software Development
Product Design
Graphic Design
Show more
Location
Lewes, Delaware
Number of Employees
500 - 999
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Antino Labs Services
Web Design
Mobile App Development
Software Development
Product Design
Graphic Design
Digital Services
Logo Design
AI Development
Blockchain
Digital Strategy
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Ontic
Rapido
Hyderabad Metro Rail
Krishify
Hoppy
Data sourced from the agency's DesignRush profile
Antino Labs Reviews & Testimonials
sudeep kotari
Review from Google
5.0★
sudeep kotari's Review Sourced from Google
Recently I cleared all the interview rounds in this company, unfortunately due to some personal reason didn't join. 2 technical round was very good, interviewers and HR Minnu was very friendly and nice. Definitely 5 star for treating employees and aspirants.
Jitendra Gupta
Review from Google
5.0★
Jitendra Gupta's Review Sourced from Google
Antino labs's development is handled by experience developers. This gives best services to the client.This complets milestone before the time. I will say that it is satisfactory organization
Prakhar Pandey
Review from Google
5.0★
Prakhar Pandey's Review Sourced from Google
I am working here as an android developer. In a small time I got a great exposure. For the freshesr who want to enhance our skills to next level then Antino Labs is a right organization.
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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