Best C# Developers in the United States

8 Companies - Rankings updated: September 03, 2026

DesignRush assesses agencies using expertise standards and verified client experiences to help you make better decisions. Certain agencies have paid placements.

United States × C# Development × Entertainment × $25,000 - $50,000 × Clear Filters
  • ELEKS

    Verified Verified by the DesignRush team for authenticity and credibility.

    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
    • Show more
    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
      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
      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
      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 View All Reviews
  • Vention

    Verified Verified by the DesignRush team for authenticity and credibility.

    Engineering peace of mind

    Vention builds custom software across fintech, healthtech, and eCommerce, for clients like ClassPass, Mount Sinai, and Slice. Its ISO 27001-certified team serves 30+ industries and over 500 clients. With 20+ years of experience, the software development firm is best for businesses needing scalable...

    Top Services:

    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Software Testing
    • Web Development
    • Show more
    Location
    New York City, New York
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    15 Projects Listed

    Vention Services

    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Software Testing
    • Web Development
    • Blockchain
    • AI Development
    • Cloud Consulting
    • CRM Consulting
    • Cybersecurity
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • IBM
    • PayPal
    • Cuvva
    • Costa Coffee
    • Memrise
    • Urban
    • Tailored Dog Food Delivery
    • RealVNC
    • Label on a Cable
    • ClassPass
    Data sourced from the agency's DesignRush profile

    Vention Reviews & Testimonials

    • Lee Tupper
      Lee Tupper CTO at Remotiv (formerly Financial Soundings)
      3.8

      Mobile App Development Review from Lee Tupper

      Vention has delivered excellent design prototypes and accurate time estimates. The app is still in beta mode, and the partnership with [...] Vention will [continue] until the release of the next version. Vention is a reliable team that offers quality service. (Verified via email)

    • Jon Wade
      Jon Wade CTO & Founder at Union54
      5.0

      Staff Augmentation Review from Jon Wade

      Vention’s efforts allowed the successful development of the product, resulting in new customers. They provided backend developers, business analysts, UI designers, and QA testers to develop our solution. Vention cultivated a seamless partnership through constant updates and a collaborative approach. Overall, their team’s well-rounded expertise was impressive.

    • AJ Canty
      AJ Canty CTO and Co-Founder at Primer
      5.0

      Web Development Review from AJ Canty

      We’ve been working with Vention for quite some time and consider them an extension of our team, rather than an offshore vendor. We needed solid mobile developers to work with our in-house engineers to build our Primer SDKs on both mobile platforms. This was not a trivial thing as it required a lot of cross-functional communication, but the Vention team was up to the challenge. They quickly adopted the best practices we follow at Primer and proved to be effective and proactive.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • 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
      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
  • Engineering for live products where mistakes are expensive.

    KITRUM is an engineering partner focused on building on top of live software products. We help them grow beyond their original design by modernizing architecture, adding new capabilities, and scaling systems without disrupting what already works...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • IT Services
    • AI Development
    • Show more
    Location
    Miami, Florida
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    11 Projects Listed

    KitRUM Services

    • Software Development
    • Mobile App Development
    • Web Development
    • IT Services
    • AI Development
    • Software Testing
    • Staff Augmentation
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Mastercard
    • Airbnb
    • Ebay
    • Lulalend
    • PawSquad
    • FreightCenter
    • Turf Tank
    • StackSource
    • Proteus Motion
    • Ledgerset
    Data sourced from the agency's DesignRush profile

    KitRUM Reviews & Testimonials

    • Daniel Rondell
      Daniel Rondell CTO at Fintech Industry
      5.0

      Software Development Review from Daniel Rondell

      We are notably satisfied with the upshot. PMs and development team was very devoted to the tasks and encouraging. We had a stringent and fixed deadline. And we got it just in time! KitRUM helped us to create an entire software that absolutely meets our requirement. They had presented the system in a short-term after putting their hands on it. They also provide support after developing this software. We have a different project now and certainly will work with KitRUM again.

    • Adelina Romanova
      Adelina Romanova Manager at GR Business Networking / Groupe Reso International Corp.
      5.0

      Software Development Review from Adelina Romanova

      KitRUM expanded our team to shift software to a new platform. Using JavaScript and RESTful APIs, they improved interfaces and DevOps, and fixed bugs. The team has always been on time. Their ability to understand the business requirements and their communication was just perfect. I definitely will recommend KitRUM as a reliable partner.

    • Daisy Skot
      Daisy Skot Client Manager at Nicholas Financial Inc.
      5.0

      Software Development Review from Daisy Skot

      KitRUM made a variety of development services: conception, coding, and QA, which means almost a full software package for our company. We needed to develop a few tasks, for example, a desktop app for our store, a cloud app for administration and supervision, and a portable app for end customers. However, we had an in-house team, which is not enough for this project. So we had to find a dedicated team that could deliver all we needed. We found KitRUM as a top-notch software development company

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Nearshore & Offshore IT Outsourcing Experts

    ParallelStaff is an IT outsourcing partner helping tech leaders scale fast with pre-vetted Nearshore and Offshore developers. We deliver top-tier talent in 10 days or less, backed by guarantees for performance, security, and cultural alignment...

    Top Services:

    • Staff Augmentation
    • IT Services
    • Software Development
    Location
    Dallas, Texas
    Number of Employees
    250 - 499
    Average Hourly Rate
    $60/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    11 Projects Listed

    ParallelStaff Services

    • Staff Augmentation
    • IT Services
    • Software Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Fintech Industry
    • Software & IT Services Industry
    • Entertainment Technology
    • Automotive Industry
    • Real Estate Industry
    • HR Industry
    Data sourced from the agency's DesignRush profile

    ParallelStaff Reviews & Testimonials

    • john ramos
      john ramos Career coach at Procured Property
      5.0

      Software Development Review from john ramos

      Parallel staff flexibility allows the company to transition from an outsourced to out-staffed model. Despite external issues, the team has ensured business continuity and quality results. They utilize modern tools like Jira and Confluence to lead seamless project management.

    • ruth kate
      ruth kate Operations Specialist at Loan Market Vantage
      5.0

      Mobile App Development Review from ruth kate

      Their work enabled the client to launch their mobile app. The team was committed to the project, resulting in a successful and satisfactory partnership. Moreover, they were been able to overcome some delays and challenges, using Zoho, Google Docs, and ClickUp to collaborate.

    • Keith Mancuso
      Keith Mancuso Head of Digital Product at casper
      5.0

      Mobile App Development Review from Keith Mancuso

      Parallel staff worked on some features for our web app. They also helped us with using the AWS cloud. We used React.js and Node.js for the development of the app. Its frontend was 90% done. Meanwhile, one of the previous developers that I was working with put half of the backend AWS code into an account that only he had access to so parallel staff had to search for it. They did not find it, so the team had to create the code from scratch. They also gave me a report of the things that needed to be corrected. From there, they implemented new features that we needed

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Powering Smart Digital Experiences Across Mobile, Software and Web

    8ration drives digital innovation with 10+ years of excellence. As a leading Web Design & Development Company in the USA, we deliver powerful digital solutions across Web Development, Mobile App Development, Blockchain, AI Innovations, and scalable SaaS Platforms...

    Top Services:

    • Software Development
    • eCommerce Development
    • Web Development
    • AI Development
    • Mobile App Development
    • Show more
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    29 Projects Listed

    8ration Services

    • Software Development
    • eCommerce Development
    • Web Development
    • AI Development
    • Mobile App Development
    • Blockchain
    • VR/AR
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • RC Event Hub
    • Circle Track Connections
    • Dots Travel
    Data sourced from the agency's DesignRush profile

    8ration Reviews & Testimonials

    • Thomas Garrett
      Thomas Garrett Review from Google
      5.0

      Thomas Garrett's Review Sourced from Google

      Our old Android app was slow and full of bugs, but 8ration rebuilt it from the ground up. The new version runs smoothly, loads instantly, and sports a modern, user-friendly design. Feedback from our customers has been overwhelmingly positive.

    • Ehsaan Azfar
      Ehsaan Azfar Review from Google
      5.0

      Ehsaan Azfar's Review Sourced from Google

      Hello Dear, I hope you're doing well. We provide SEO guest post experts .If you want to buy quality links to grow your online portal, we are with top websites based on tech, business, and fashion. We offer: 1. SEO improves your website’s visibility and authority on search engines. 2. It includes high-quality backlinks and permanent posts on tech, business, and fashion websites. 3. This helps boost your rankings, authority score, and organic traffic for long-term growth. Your time and interest are highly valued. Now, could you please share your next plan for growing your business? Let me know what do you think Thanks

    • David Cumbie
      David Cumbie Review from Google
      5.0

      David Cumbie's Review Sourced from Google

      I needed an iOS eCommerce app for my boutique store, and 8ration delivered exactly what I had in mind. The app is easy to navigate, secure, and the checkout process is seamless. Sales have gone up since launch.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Vetted Devs On-Demand. Scale Team Fast, Risk-Free.

    Hivex is an outstaffing company that offers a full software development lifecycle, from discovery to quality assurance. Our team of experts focuses on technology-intensive industries and stays up-to-date with the latest IT trends, providing the best solutions for companies worldwide...

    Top Services:

    • Software Development
    • Staff Augmentation
    • DevOps Consulting
    • AI Development
    • Blockchain
    • Show more
    Location
    Miami, Florida
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $25,000 - $50,000

    Hivex Services

    • Software Development
    • Staff Augmentation
    • DevOps Consulting
    • AI Development
    • Blockchain
    • Mobile App Development
    • VR/AR
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Legarithm
    • Equeum
    • Logicom
    Data sourced from the agency's DesignRush profile

    Hivex Reviews & Testimonials

    • Margaret N.
      Margaret N. Marketer at Elit-Web
      5.0

      Software Development Review from Margaret N.

      It was a pleasure working with Hivex. They quickly grasped the scope of our project and provided highly skilled developers within days. These engineers were efficient and integrated smoothly into our team. They built a robust remote work system that significantly improved our team's collaboration and productivity. The whole process was smooth, and the results were exactly what we needed.

    • Olena Shabunina
      Olena Shabunina CEO at BrandVox
      5.0

      Software Development Review from Olena Shabunina

      We needed to quickly expand our dev team to build out a new feature set, and Hivex helped us find and bring on skilled remote developers to make that happen. The devs hit every deadline we set, sometimes even early. If we needed changes or had questions, they were super responsive - usually got back to us within a couple hours.

    • Isammara Lourenço
      Isammara Lourenço HR Generalist at Snov.io
      5.0

      Software Development Review from Isammara Lourenço

      We had a temporary gap in our technical team due to some transitions, and we needed to keep our development momentum going strong. Hivex provided us with skilled developers who seamlessly integrated into our team. They had the expertise we needed and filled the gap until we made permanent hires. Our collaboration with Hivex made sure our projects kept going without delay, we didn't lose our development momentum, and there wasn't any disruption. It was a huge help during a challenging time.

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