Best C# Developers in the United States

7 Companies-Rankings updated: October 19, 2026

Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

United States × C# Development × Social Networks × $1,000 - $10,000 ×Clear Filters
  • Promatics Technologies Private Limited

    VerifiedVerified by the DesignRush team for authenticity and credibility.

    Top Rated Web Development Company in India

    Promatics is an AI-powered web and mobile app development company building scalable, intelligent digital products. Our expert team blends design, engineering, and AI to deliver high-performance solutions with personalization, automation, and data-driven insights that drive real business growth...

    Top Services:

    • Web Development
    • AI Development
    • Mobile App Development
    • Software Development
    • eCommerce Development
    • Show more
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $15/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    9 Projects Listed

    Promatics Technologies Private Limited Services

    • Web Development
    • AI Development
    • Mobile App Development
    • Software Development
    • eCommerce Development
    • IoT
    • VR/AR
    • Web Design
    • Wearables
    • Blockchain
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • United Nations
    • Google
    • Michigan State University
    • HP
    • DHL
    • IFFCO
    • ABRO
    • Johnson&Johnson
    • Airtel
    • Aditya Birla Fashion and Retail
    Data sourced from the agency's DesignRush profile

    Promatics Technologies Private Limited Reviews & Testimonials

    • Sriganesh T.V
      Sriganesh T.V Co-Founder at Supernan Childcare Solutions Private Limited
      5.0★

      Mobile App Development Review from Sriganesh T.V

      Promatics Technologies has delivered a well-designed, user-focused app for usKey technical achievements include:Robust user verification systemReal-time location tracking and monitoring featuresPayment gateway integrationSeamless booking and cancellation systemVideo monitoring capabilities with bandwidth optimization

    • Louis Powell Owner/Manager at Kashanebo Management LLC
      5.0★

      Mobile App Development Review from Louis Powell

      Pramatics help me so much every way needed. We had a few problems but they always solved the problems quickly and with a lot of consideration. I never built an App before and they gave me a lot of help beyond what I expected. They are great at explaining and making very useful suggestions too.

    • Sandy Paddock-Barragan
      Sandy Paddock-Barragan President at One Step Services
      5.0★

      Software Development Review from Sandy Paddock-Barragan

      The Promatics team was excellent from start to finish. We had a custom software project needing Google Maps expertise, they delivered everything on time and within budget. Highly recommend their team and talent.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Your Gateway To Tech Excellence

    Zamratech, a globally recognized company based in the United States, has become a leading worldwide application developer. We provide a comprehensive range of digital services, including web design, mobile app development, software development, and cross-platform development, offering a complete 360-degree...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • Blockchain
    • IoT
    • Show more
    Location
    Cincinnati, Ohio
    Number of Employees
    100 - 249
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed

    Zamratech Services

    • Mobile App Development
    • Software Development
    • Web Development
    • Blockchain
    • IoT
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Swarm Circle
    • Wealthy Gen
    • Booray App
    • Nestle
    • Wallmart
    • Rx Calendar
    • New York Dating
    • Daraz Ecommerce
    Data sourced from the agency's DesignRush profile

    Zamratech Reviews & Testimonials

    • John Line
      John Line Architecture owner at Simply Business
      5.0★

      AI Development Review from John Line

      Zamratech demonstrated an unwavering commitment to delivering high-quality results. They went above and beyond to ensure that the AI models not only met but exceeded our expectations. Their dedication to excellence was evident in the meticulous testing, refining, and fine-tuning of the algorithms until they achieved optimal performance.

    • Jack Clark
      Jack Clark Executive Director at U.S. Wrestling Foundation
      5.0★

      AI Development Review from Jack Clark

      We worked with Zamratech to improve our financial services by utilizing cutting-edge AI machine learning and data science methods. Our objective was to streamline the process of generating financial insights so that we could offer our clients recommendations based on data that was more precise and useful.

    • John Lennon
      John Lennon Enterprise Account Executive at Pluralsight
      5.0★

      Blockchain Review from John Lennon

      The team is enough knowledgeable and professional about blockchain to make the project excellently. They analyze their business idea deeply, then devoted developers ensure to launch your platform within the stipulated time frame.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Enterprise AI Solutions | Scalable . Flexible. Sustainable

    Seasia Infotech is a global AI-powered digital engineering company with 25+ years of experience delivering custom software, AI solutions, cloud applications, mobile apps, and enterprise platforms. We help businesses accelerate innovation, improve efficiency, and drive digital transformation...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • AI Development
    • Big Data Analytics
    • Show more
    Location
    Emeryville, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    65 Projects Listed

    Seasia Infotech Services

    • Software Development
    • Mobile App Development
    • Web Development
    • AI Development
    • Big Data Analytics
    • Cloud Consulting
    • Staff Augmentation
    • Cybersecurity
    • IoT
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Adani Group
    • Flipkart
    • Harley-Davidson
    • Microsoft
    • MainStreet Equity Corp
    • HDFC Bank
    • Swaraj
    • Innopharma Education
    • Renault
    • Puda
    Data sourced from the agency's DesignRush profile

    Seasia Infotech Reviews & Testimonials

    • cornelia verden
      cornelia verden Web Developer at Cornelia Verden LLC
      5.0★

      eCommerce Development Review from cornelia verden

      This Company is AMAZING, they are very professional. We hired them to build my website, and they did an EXCELLENT job. They continuously communicated with me during the development phase. If you want a beautiful, well-designed, professional website that has optimum functionabilty, You must go with Seasia Infotech. You can always expect excellent quality services from the professionals at Seasia Infotech.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Hadrus Digital is a multidisciplinary studio uniting design, DevOps, growth, build, and AI developme

    Hadrus Digital is a multidisciplinary digital studio helping businesses grow through digital marketing, web and mobile app development, UI/UX design, and AI solutions. We combine strategy, creativity, and technology to build scalable digital experiences that improve online visibility, customer engagement, and...

    Top Services:

    • Digital Services
    • Graphic Design
    • Logo Design
    • Web Design
    • eCommerce Development
    • Show more
    Location
    New York City, New York
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000

    Hadrus Digital Services

    • Digital Services
    • Graphic Design
    • Logo Design
    • Web Design
    • eCommerce Development
    • AEO
    • SEO
    • Social Media Marketing
    • PPC
    • Digital Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • bawadi construction
    • scenteura
    • Marketing Eden
    • Odulotion
    Data sourced from the agency's DesignRush profile

    Hadrus Digital Reviews & Testimonials

    • Scenteura Perfumes
      Scenteura Perfumes Review from Google
      5.0★

      Scenteura Perfumes's Review Sourced from Google

      Exceptional Website Design & Development Experience!We had an excellent experience working with Hadrus Digital on the development of the Scenteura Perfumes website. From the initial concept to the final execution, their team demonstrated professionalism, creativity, and a strong understanding of our brand.

    • Marketing Eden
      Marketing Eden Review from Google
      5.0★

      Marketing Eden's Review Sourced from Google

      Really happy with the work Hadrus Digital did for us. They built our Marketing Eden website and did a great job with the design and overall functionality. We’re also working with them on SEO and SMM, and the team has been professional, responsive, and easy to work with.Great experience overall. Would definitely recommend Hadrus Digital!

    • Mohamid So
      Mohamid So Review from Google
      5.0★

      Mohamid So's Review Sourced from Google

      I had a great experience with Hadrus Digital’s digital marketing services. Their team is professional, responsive, and genuinely focused on delivering results. They understood our goals, provided clear communication throughout the process, and implemented effective strategies that helped improve our online presence.I really appreciate their dedication, expertise, and attention to detail. Highly recommended to anyone looking for reliable and professional digital marketing services!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Software studio and TikTok LIVE creator agency.

    Devign LLC is a remote-first software studio and TikTok LIVE creator agency. We build Devign Agency Suite, Devign TCN Agent and custom software for clients...

    Top Services:

    • Digital Services
    • Web Design
    • Web Development
    • eCommerce Development
    • Mobile App Development
    • Show more
    Location
    Casper, Wyoming
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed

    Devign Services

    • Digital Services
    • Web Design
    • Web Development
    • eCommerce Development
    • Mobile App Development
    • Software Development
    • CRM Consulting
    • ERP Consulting
    • IT Services
    • Managed Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Visa Port
    • Insightful Solutions FZ LLC
    • DJ Mortero
    • Dental Clinics
    Data sourced from the agency's DesignRush profile

    Devign Reviews & Testimonials

    • Heidi Blackburn
      Heidi Blackburn Review from Google
      5.0★

      Heidi Blackburn's Review Sourced from Google

      We worked with this incredible team earlier this year when they created the new website for our bridal boutique and they did an absolutely fantastic job. They were very professional and the communication was amazing, every step of the way, from the initial discussions to the official launch. They now continue to host our website and are always on hand to help whenever we need it. Thank you Adam and Gemma, we’re very much looking forward to continuing to work with you in 2026.

    • Jules Nelson
      Jules Nelson Review from Google
      5.0★

      Jules Nelson's Review Sourced from Google

      We are an established wedding film and photography business and plan to diversify and expand the services we offer in future. We knew that in order to do this we needed to invest in a process of rebranding and a new website, and we decided to contact Devign Studios once again for this.18 months ago they created the branding and website for a seperate start-up business idea for us and we were beside ourselves with excitement and admiration for the work they created then, so we knew that they were the only team who could help us prepare our business for our future ambitions and bring our vision to life.Needless to say that, in the design and build of our new branding and website, they have not only done exactly that, but they have far exceeded what we could have ever hoped for!We were keen to retain the core values and personality which underpin our brand whilst appealing to a new level of client, and Adam really invested in understanding that about us and created branding and design of the website which absolutely smashed it out of the park. Every time we see our branding and website we are so genuinely excited and proud of it, and it’s all thanks to this team of creative geniuses. We are already receiving new enquiries for our services where people are commenting on quality of design and ease of navigating the site, and again, without the relentless work Ashley has put into the build and ensuring that we understand how to maintain and add new content to our site, we just couldn’t imagine being able to achieve our new business and client goals.With the expansion of our services, comes new learning for us into how to market these services effectively, and Gemma’s exceptional knowledge and experience in marketing and events is golden; we have needed this to best understand how to use the new branding in the correct way and how to use a range of tactic’s to bring our new marketing strategy to life.The thoroughness, professionalism and work ethic of this team is to be admired, they go above and beyond to ensure they can help and deliver results.We are absolutely thrilled with what they’ve done for us and wouldn’t hesitate to recommend them or work with them again in future.Thank you so much guys, and best wishes for the future.Lyndsey & JulesYour Story Studios

    • Teresa Nicolaou
      Teresa Nicolaou Review from Google
      5.0★

      Teresa Nicolaou's Review Sourced from Google

      My brief: I needed an e-commerce website and I knew it had to be special.I knew exactly what I didn’t want, but couldn’t put into words what I did want. I spent weeks searching for a company that had enthusiasm and genuine interest in ‘my vision’. Then I found Devign. Adam and Ashley were amazing! From the very first enquiry Ashley was there to guide and support me. Being a novice, I needed a lot of help.Adam has a magic gift that enables him to and create a website from an in-depth conversation. The team were always on hand to answer any question and nothing was ever a problem. I cannot thank Devign enough for their personable approach and creating my dream of a website.

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

    Radisoft unleashes digital potential, crafting seamless web and mobile experiences that turn ideas into reality. Radisoft is a full-service software development company building user-friendly web and mobile apps that help brands succeed. We are creative, forward-thinking, and agile - moving fast while making...

    Top Services:

    • Software Development
    • UI/UX Design
    • WordPress Website Design
    • Mobile App Development
    • Show more
    Location
    New York City, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $1,000 - $10,000

    Radisoft Services

    • Software Development
    • UI/UX Design
    • WordPress Website Design
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • OnlyDate
    • uWork
    • Exit Entry
    Data sourced from the agency's DesignRush profile
  • Innovate, Collaborate, and Launch with The Apps Pro.

    The Apps Pro is a leading mobile app development company specializing in crafting bespoke applications with smart strategies, advanced technology, and user-friendly designs. They provide custom solutions for iOS, Android, and cross-platform apps, ensuring seamless functionality and engaging user exp...

    Top Services:

    • VR/AR
    • Mobile App Development
    • Software Development
    • Software Testing
    • Blockchain
    • Show more
    Location
    New York City, New York
    Number of Employees
    250 - 499
    Average Hourly Rate
    $2000/hr
    Minimal Budget
    $1,000 - $10,000

    Apps Us Services

    • VR/AR
    • Mobile App Development
    • Software Development
    • Software Testing
    • Blockchain
    • Social Media Marketing
    • eCommerce Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • HealthOMax
    • LiftLine
    • Glam Grid
    Data sourced from the agency's DesignRush profile

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Agencies vetted
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2

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We review agency work, case studies, and results to confirm skill.

Applicants rejected
48%
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Agencies verified
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