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

3 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.

United States × .Net Development × Sports × $50,000 & Up × Clear Filters
  • A Versatile Tech Company!

    Softeq is a versatile technology and Greentech company offering a wide range of services, including embedded system development, machine learning, digital transformation, hardware design, UX/UI design, and more...

    Top Services:

    • Mobile App Development
    • Software Development
    • Software Testing
    • Blockchain
    • Wearables
    • Show more
    Location
    Houston, Texas
    Number of Employees
    250 - 499
    Average Hourly Rate
    $80/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    8 Projects Listed

    Softeq Services

    • Mobile App Development
    • Software Development
    • Software Testing
    • Blockchain
    • Wearables
    • UI/UX Design
    • Cybersecurity
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Lenovo
    • Epson
    • Microsoft
    • WTA
    • NVIDIA
    • Verizon
    • G.J.Gardner
    • Walt Disney Parks and Resorts
    • Happiest Baby
    Data sourced from the agency's DesignRush profile

    Softeq Reviews & Testimonials

    • Quan Gan
      Quan Gan Owner at Gantom Lighting & Controls
      5.0

      Software Development Review from Quan Gan

      We collaborated with Softeq to develop an infrared emitting platform. Softeq provided software development and support services, streamlining our project. While our hardware technology was excellent, Softeq elevated our company's products with superb software development and implementation solutions. Working with Softeq was highly beneficial for us, as the agency managed our projects more efficiently due to exceptional project management and organized workflows.

    • Jeff Johnston
      Jeff Johnston Founder and Chief Executive Officer at A-List Enterprises
      5.0

      Mobile App Development Review from Jeff Johnston

      We hired Softeq for mobile app development services. Softeq developed a functional and user-friendly app, efficiently integrating productivity features like calendar, contacts, and task management. The agency organized regular meetings with our product management department, communicated effectively, and promptly resolved issues. Softeq's team worked diligently and provided valuable insights. We were satisfied with Softeq's services.

    • Trent Gardner
      Trent Gardner Information Technology (IT) Manager at G.J. Gardner Homes
      5.0

      Software Development Review from Trent Gardner

      We worked with Softeq for software redevelopment services to improve our company's proprietary software. Softeq updated the business platform, streamlining operations and enhancing the platform's user UI and functionality. This improvement aided our sales, job estimating, purchase orders, and administration efforts. Softeq's team was professional, attentive, and prompt in implementing feedback. The agency delivered high-quality work, impressing our company's internal stakeholders.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Together, beyond expectations

    CHI Software is a technology solution provider that offers a full set of software-based services from custom software development to maintenance & support. Our talented team is passionate about Generative AI, Cloud Computing, Data Engineering, and IoT. CHI's success comes from care of every client...

    Top Services:

    • AI Development
    • Mobile App Development
    • Software Development
    • Web Development
    • Staff Augmentation
    • Show more
    Location
    Philadelphia, Pennsylvania
    Number of Employees
    500 - 999
    Average Hourly Rate
    $60/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    12 Projects Listed

    CHI Services

    • AI Development
    • Mobile App Development
    • Software Development
    • Web Development
    • Staff Augmentation
    • Software Testing
    • IoT
    • Big Data Analytics
    • IT Services
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Vodafone
    • Lecre
    • Media Mrkt
    Data sourced from the agency's DesignRush profile

    CHI Reviews & Testimonials

    • David Gornshtein
      David Gornshtein Co-Founder at Binadox
      5.0

      Web Development Review from David Gornshtein

      My company was looking for a development team to proceed with the development process. We needed to set up a service [that] allows our clients to monitor, control, and optimize their Cloud & SaaS spend. [The] CHI Software team delivered services and technologies we need[ed] to reach our financial goals. (Verified via email)

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Zoho consulting, development and integration services for operationally complex organizations.

    CodeStringers helps growth-stage and small-to-mid-market companies implement, integrate, and operate Zoho-centered digital enablement solutions by combining senior executive consulting, cost-effective delivery teams, and custom software capabilities when needed...

    Top Services:

    • Software Development
    • AI Development
    • Web Development
    • CRM Consulting
    • ERP Consulting
    • Show more
    Location
    Santa Cruz, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $50,000 & Up

    CodeStringers Services

    • Software Development
    • AI Development
    • Web Development
    • CRM Consulting
    • ERP Consulting
    • Managed Services
    • Mobile App Development
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Tübr Storage
    • Addiction Rep
    • True Pet Kitchens
    • MasterControl
    • Tonal
    • MindTRAK Golf
    • Mido Play
    • Inboard Technology
    • SiteOne Services
    • KnowledgeDesk
    Data sourced from the agency's DesignRush profile

    CodeStringers Reviews & Testimonials

    • Lori Feld Oakley
      Lori Feld Oakley Executive VP at MasterControl
      5.0

      Software Development Review from Lori Feld Oakley

      Our Services organization is scaling quickly and we urgently needed a custom software application to automate our workflows, without breaking our annual budget. CodeStringers was the perfect fit, supporting us from ideation through go-live and everything in between. They innovated, hit their deadlines and released an amazingly high quality application that decreases our internal costs and improves our reputation with our customers. It would not have happened without CodeStringers.

    • Christian Schraga
      Christian Schraga CEO at Tabula Learning
      4.8

      Enterprise Review from Christian Schraga

      CodeStringers is the perfect outsourcer to call If you have a solid software business idea but don’t know exactly how to bring it to life. They have both a top-notch development team as well as an executive staff with expertise in marketing, finance, and general business acumen. So they can not only build a product for you but they can make sure that the product you want to build is likely to succeed in the marketplace.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews

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 

  1. Examine the agency’s service range and technical proficiency, especially in related technologies like ASP.NET, MVC, and Web API 
  2. Identify if the agency has case studies and portfolios on projects similar to yours 
  3. Read the agency’s positive and negative client reviews to assess its customer service strengths and weaknesses 
  4. Seek out awards, recognitions, and certifications 
  5. Send a request for proposal (RFP) to your top 5-8 candidates 
  6. Schedule an introductory meeting and inquire about security measurements, IP rights, and development approach 
  7. 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 

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