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

Every agency on DesignRush meets evaluation criteria around expertise and client feedback to empower informed choices. Some listings include paid partnerships.

United States × .Net Development × Industrial × Sort by: Number of Reviews × Clear Filters
  • Yalantis

    Verified Verified by the DesignRush team for authenticity and credibility.

    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
    • Show more
    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
      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
      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
      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)

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Vserve Ebusiness Solutions

    Verified Verified by the DesignRush team for authenticity and credibility.

    All-In-One E-commerce Technology Solution Provider: Because Every Click Matters.

    Vserve Ebusiness Solutions is an AI-powered Supply Chain Management and Ecommerce company with 10+ years of global delivery. We provide offshore teams, BPO, procurement, order and inventory management, customer support, and ecommerce solutions to reduce costs and improve efficiency...

    Top Services:

    • Logistics
    • Accounting
    • eCommerce Development
    • BPO
    • Call Centers
    • Show more
    Location
    New York City, New York
    Number of Employees
    500 - 999
    Average Hourly Rate
    $25/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed

    Vserve Ebusiness Solutions Services

    • Logistics
    • Accounting
    • eCommerce Development
    • BPO
    • Call Centers
    • Web Design
    • eCommerce
    • SEO
    • Customer Support
    • Phone Answering Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Traci Miller
    • Marcia Maples
    • Joseph Powell
    Data sourced from the agency's DesignRush profile

    Vserve Ebusiness Solutions Reviews & Testimonials

    • Marie M. Harris Undisclosed at Retail
      5.0

      Customer Support Review from Marie M. Harris

      Although we have been struggling before, after expanding our influence into mountain wear and watches, it became evident that we needed some professional help. We were offering many new products, and making matters worse, we were present in different foreign markets, which mean many competitors to keep an eye on. After some consultations with the Vserve team, we had no doubts that they were the solution we had been looking for. Thanks to their proven MAP enforcement strategies, maintaining our market position is now easier. We always have accurate pricing information at our fingerprints. I must say, we are really impressed with Vserve.

    • Danielle W Undisclosed at Retail
      5.0

      Customer Support Review from Danielle W

      Our company is grateful to have found a collaborative team in Vserve for our Product Information Management. Initially, we were unsure about the quality of product descriptions and their accessibility to our buyers. However, Vserve’s expertise in programming language and business best practices helped us to manage our complete product information and catalog pretty well. The conversion rate excelled our expectations, and our products shot up on Google rankings!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Empowering Businesses Through Intelligent Digital Solutions

    Octal Digital is a leading software development firm specializing in mobile apps, web solutions, eCommerce, cloud and AI. We combine creativity with cutting-edge tech to assist businesses in their growth, optimization, and realization of their digital aspirations. Trusted by clients worldwide...

    Top Services:

    • Mobile App Development
    • AI Development
    • Software Development
    • DevOps Consulting
    • Cloud Consulting
    • Show more
    Location
    Houston, Texas
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    5 Projects Listed

    Octal Digital Services

    • Mobile App Development
    • AI Development
    • Software Development
    • DevOps Consulting
    • Cloud Consulting
    • Web Development
    • eCommerce Development
    • Web Design
    • WordPress Website Design
    • ERP Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Adidas
    • SingTel
    • ASUS
    • Honda
    Data sourced from the agency's DesignRush profile

    Octal Digital Reviews & Testimonials

    • Cary  Caballero
      Cary Caballero Director of Marketing at Cosmetic Group USA
      5.0

      Mobile App Development Review from Cary Caballero

      Octal Digital's helped me build an exquisite mobile app. They took the time to understand my needs and communicated fluently. They satisfied me at every stage and provided me with details regarding the project.

    • Joana Erika T. Nono-Cuizon
      Joana Erika T. Nono-Cuizon Review from Google
      5.0

      Joana Erika T. Nono-Cuizon's Review Sourced from Google

      I’m glad we trusted them, my website has been active since the beginning of 2024 and only had minimal errors yet continuous improvement due to their active response rate and efficient service!

    • Aeron Mendoza
      Aeron Mendoza Review from Google
      5.0

      Aeron Mendoza's Review Sourced from Google

      Love their work! The mobile app they developed for us has the smoothest user interface and is very easy to navigate which is perfect for our business’ target audience.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Your AI-Powered Engineering Partner

    Liquid Technologies automates enterprise operations using AI, custom software, and data engineering. We work with healthcare, manufacturing, logistics, and regulated industries to replace manual workflows with intelligent automation...

    Top Services:

    • AI Development
    • Software Development
    • IoT
    • Mobile App Development
    • Software Testing
    • Show more
    Location
    Houston, Texas
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    19 Projects Listed

    Liquid Technologies Services

    • AI Development
    • Software Development
    • IoT
    • Mobile App Development
    • Software Testing
    • Business Consulting
    • Big Data Analytics
    • DevOps Consulting
    • Cloud Consulting
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Procheck
    • Precheck
    • Intentomatic
    • Trans Global Solution
    • Who's On
    • MyInvites
    • Powerhouse
    • Ebco
    Data sourced from the agency's DesignRush profile

    Liquid Technologies Reviews & Testimonials

    • Nusrat  Jahan Trissa
      Nusrat Jahan Trissa Manager at Axentec PLC
      5.0

      IT Compliance Solution Review from Nusrat Jahan Trissa

      Im very happy with the results Liquid Technologies delivered! They provided full-scale IT support and optimized our website for performance, security, and scalability. The site now loads incredibly fast, is beautifully designed, and much easier to manage from the backend. Timothy was highly responsive throughout the entire processhe listened to our feedback, explained technical concepts clearly, and made sure every update aligned with our business goals. A huge thanks to CEO Hadi Tabani and the entire Liquid Technologies team for their professionalism, technical expertise, and dedication. It was a smooth and successful collaboration from start to finish!

    • abdul wasey
      abdul wasey Review from Google
      5.0

      abdul wasey's Review Sourced from Google

      Their expert team is dedicated, responsive, and consistently exceeds expectations. Highly recommend for anyone seeking cutting-edge technology development services.

    • Allen Parker
      Allen Parker Review from Google
      5.0

      Allen Parker's Review Sourced from Google

      Collaborating with Liquid Technologies proved to be a streamlined and trouble-free experience. Their skilled team maintained constant communication with us throughout the project, ensuring that the entire process unfolded seamlessly and without any hitches.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Award-Winning Demand Generation Agency

    Valasys Media is a highly acclaimed and award-winning Inc. 5000 vetted Lead Generation agency known for ABM, CS, MQL, HQL, BANT campaigns. Our full-funnel services include touch points like programmatic media buying, LinkedIn ads, Email Marketing, Tele-touch and Intent-based ABM building...

    Top Services:

    • Media Buying
    • Digital Marketing
    • PPC
    • Advertising
    • Email Marketing
    • Show more
    Location
    Jersey City, New Jersey
    Number of Employees
    50 - 99
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    7 Projects Listed

    Valasys Media Services

    • Media Buying
    • Digital Marketing
    • PPC
    • Advertising
    • Email Marketing
    • Direct Marketing
    • Market Research
    • Web Development
    • SEO
    • Graphic Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Integrate
    • HP Enterprise
    • Pluralsight
    • Marketo
    • Adobe
    • CISCO
    • Dell
    • IBM
    • Merit Mile
    • Microsoft
    Data sourced from the agency's DesignRush profile
  • SLIDEFACTORY

    Verified Verified by the DesignRush team for authenticity and credibility.

    Portland-based digital product studio building web, AI, and interactive experiences.

    A Portland based design & development studio creating digital-first solutions across mobile, web, and virtual/ augmented reality...

    Top Services:

    • Web Design
    • UI/UX Design
    • VR/AR
    • Web Development
    • Mobile App Development
    • Show more
    Location
    Portland, Oregon
    Number of Employees
    Under 49
    Average Hourly Rate
    $130/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    9 Projects Listed

    SLIDEFACTORY Services

    • Web Design
    • UI/UX Design
    • VR/AR
    • Web Development
    • Mobile App Development
    • Branding
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • 1
    • 2
    • 3
    Data sourced from the agency's DesignRush profile

    SLIDEFACTORY Reviews & Testimonials

    • Ben Lee
      Ben Lee Review from Google
      5.0

      Ben Lee's Review Sourced from Google

      My engagement with SLIDEFACTORY has been one of the best working experiences of my career. After launching multiple SaaS products as a product manager, I've worked with a fair number of technical teams ranging across a variety of tech stacks. SLIDEFACTORY has proven to be one of the most competent, agile, and customer obsessed teams I've worked with. After launching my own business and needing a detail oriented tech arm to execute, Mark and Tom were the people I needed to bring my vision to life. I owe them a lot and I look forward to the things we'll accomplish together.

    • Leisa Raymond
      Leisa Raymond Review from Google
      5.0

      Leisa Raymond's Review Sourced from Google

      I had a fantastic experience working with Mark at The Slide Factory. He was incredibly helpful throughout the entire process, asking thoughtful questions to ensure every detail was just right. His attention to detail and commitment to getting it perfect really stood out. The final product turned out beautifully, and I couldn’t be happier with the results. On top of that, Mark was kind, professional, and a pleasure to work with. Highly recommend his services!

    • Peter Kirwan
      Peter Kirwan Review from Google
      5.0

      Peter Kirwan's Review Sourced from Google

      The Slide Factory is one of those companies you don't often have the privilege of working with. It's not just that they do high-quality work, listen to the client, meet your deadlines, and bring insights that may not have been on your radar. Those are important, of course. I think I value most that they are nice people to work with. They sincerely want you to succeed, and that can make all the difference. They are part of your team, and to me, that makes all the difference in the long run. They truly are a partner, not a company working for you.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Try working with true business professionals!

    Digital marketing agency in Kennesaw, GA, serving clients in the USA. We offer web design, SEO, GEO, AEO, local SEO, PPC advertising, content marketing, and related services. Our competitive advantage is over 45 years sales and marketing experience (25+ years digital). No foreign outsourcing...

    Top Services:

    • Digital Marketing
    • Web Design
    • SEO
    • AEO
    • CRO
    • Show more
    Location
    Kennesaw, Georgia
    Number of Employees
    Under 49
    Average Hourly Rate
    $225/hr
    Minimal Budget
    $1,000 - $10,000

    E-Platform Marketing Services

    • Digital Marketing
    • Web Design
    • SEO
    • AEO
    • CRO
    • Content Marketing
    • PPC
    • WordPress Website Design
    • Branding
    • Social Media Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Floor & Decor
    • Nueterra Holdings
    • CKS Packaging
    • RF System Labs
    • Huper Optik
    • Formetco
    • Arcadia Equipment
    • Findlay Roofing
    • Wiretech LTD
    • Cobb County School District
    Data sourced from the agency's DesignRush profile

    E-Platform Marketing Reviews & Testimonials

    • DeKisha Anderson
      DeKisha Anderson Review from Google
      5.0

      DeKisha Anderson's Review Sourced from Google

      Great Customer Service - just had a great one on one with Mr. J. Hobson of E-Platform Marketing. Website needed much attention and updates and he has been most helpful and patient. Product knowledge made it so doable and very easy to work with in getting things up to par. Very willing to get real results to keep things running smoothly. Patience is key in this industry and thank you for it! I highly recommend.

    • Sheree R.
      Sheree R. Review from Google
      5.0

      Sheree R.'s Review Sourced from Google

      My husband and I have used EPlatform Marketing for many years. He's the best in the business and would highly recommend his services to anyone.

    • Alex Gunter
      Alex Gunter Review from Google
      5.0

      Alex Gunter's Review Sourced from Google

      E-Platform marketing is the best company out there when it comes to website design, SEO, & website management. We have been a customer for many years & our contact, Jim, is always so helpful. The response times are fast, the attention to detail is shown, & they are genuinely good people to work with. We will be a customer for many years so I wanted Google to see how pleased we are with their service!

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

    Top Services:

    • Digital Services
    • Video Production
    • Creative Services
    • Web Design
    • AEO
    • Show more
    Location
    Tulsa, Oklahoma
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $1,000 - $10,000

    Animus Digital Services

    • Digital Services
    • Video Production
    • Creative Services
    • Web Design
    • AEO
    • SEO
    • Social Media Marketing
    • Advertising
    • Software Development
    • Business Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • ONEOK
    • B&H Construction
    • POSCORP
    • Green Energy Solutions
    • Pilot Thomas Logistics
    Data sourced from the agency's DesignRush profile

    Animus Digital Reviews & Testimonials

    • Steve Rice
      Steve Rice Review from Google
      5.0

      Steve Rice's Review Sourced from Google

      As a client of Animus Digital, we could not have found a better company for our business and marketing needs. Their ability to see marketing from a holistic standpoint is unmatched, and yet be laser focused on the channels that produce the greatest returns. Jon and the Animus team are amazing to work with; this group is phenomenal at everything they do.

    • Jim Moss
      Jim Moss Review from Google
      5.0

      Jim Moss's Review Sourced from Google

      Working with Jon Grogan and the team at Animus Digital has been a game changer for my business. They didn’t just build a website they helped me clarify how I show up, how I communicate value, and how I engage the right clients. From day one, Jon has approached every conversation with insight, intentionality, and a deep understanding of both business and people. Beyond the website, they’ve consulted with me on multiple marketing initiatives and recently built out a leadership assessment that has become a key tool in how I connect and serve new clients. It’s not just functional, it’s strategic, thoughtful, and aligned with the direction I’m taking my business. What sets Animus apart is their ability to combine creativity with clarity. They don’t just make things look good, they make them work. If you’re serious about growing your business and want a team that can think with you, not just for you, I highly recommend Jon and Animus Digital.

    • Seth Patterson
      Seth Patterson Review from Google
      5.0

      Seth Patterson's Review Sourced from Google

      Animus has been helping our company transition our traditional marketing to a more digital platform. Jon is systematic and professional in his approach. We are seeing results and excited to continue the journey. Additionally, they helped modernize our website for a more polished, modern look. I highly recommend.

    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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