Best C# Developers in the United States

6 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 × Beauty × $10,000 - $25,000 ×Clear Filters
  • The Development Partner for SaaS, Sport & FinTech Leaders.

    Coderfy is TOP-rated full-cycle web solutions company focused on:- custom software and web applications- mobile apps and custom AI chatbots- web design and website development at a fair price - full-stack web development, CRM and ERP systems, outsourcing including PM and BA services...

    Top Services:

    • Mobile App Development
    • Web Development
    • Software Development
    • Web Design
    • WordPress Website Design
    • Show more
    Location
    North Bay Village, Florida
    Number of Employees
    Under 49
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    26 Projects Listed

    Coderfy Services

    • Mobile App Development
    • Web Development
    • Software Development
    • Web Design
    • WordPress Website Design
    • CRM Consulting
    • AI Development
    • SEO
    • Branding
    • Content Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • FoodtruckfinderUSA
    • GreenFort App
    • Alviva Group
    • Mnadi
    • Cloven Media
    • OZPTU
    • Dalad Capital
    • Startupia
    • DaladIT
    • Crudery
    Data sourced from the agency's DesignRush profile

    Coderfy Reviews & Testimonials

    • Maxim Bugor
      Maxim Bugor high at Lion Leather
      5.0★

      WooCommerce Review from Maxim Bugor

      The Coderfy team quickly developed our new online store taking into account all our wishes and even suggested improvements to the site. I highly recommend

    • Valeria Kot
      Valeria Kot Deputy CEO at Financial company Ricard
      5.0★

      Web Development Review from Valeria Kot

      Collaborating with Coderfy on our website's development project, specifically for adding a credit calculator, has significantly boosted our user engagement. The team employed their expertise in HTML, CSS, and JavaScript to create a tool that not only fits our aesthetic requirements but is also highly functional. Coderfy's innovative solution for embedding the calculator into our WordPress site made it straightforward to feature this tool across different site sections. Their meticulous attention to design and user experience has elevated our website, providing a valuable resource to our audience. Coderfy has proven to be a reliable partner in web development.

    • Maksym Bugor
      Maksym Bugor Owner at Lion Leather Co
      5.0★

      Web Development Review from Maksym Bugor

      Communication with the project manager was easy. All arising issues were resolved quickly. The company's website turned out to be attractive and innovative. I highly recommend it

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

    As a top digital marketing firm, Search Engine Projects (SEP) offers search engine optimization (SEO), search engine marketing (SEM), website design, localization, social media marketing, web analytics, and website usability for many clients in the USA...

    Top Services:

    • Digital Marketing
    • SEO
    • Social Media Marketing
    • PPC
    • eCommerce
    • Show more
    Location
    Orange County, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    12 Projects Listed

    Search Engine Projects Services

    • Digital Marketing
    • SEO
    • Social Media Marketing
    • PPC
    • eCommerce
    • Web Design
    • WordPress Website Design
    • Web Development
    • Digital Services
    • Digital Strategy
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Printec
    • General Auction Company
    • Soboba Weight Loss
    • American Sleep Store
    • Modern Rug Importers
    • Biotouch Academy
    • SNA Auto Rental
    • Robert Don, DDS
    • Handel On The Law
    • Dental Office Website
    Data sourced from the agency's DesignRush profile

    Search Engine Projects Reviews & Testimonials

    • Ken Calof
      Ken Calof Owner at Calof Coaching
      5.0★

      SEO Review from Ken Calof

      I engaged Search Engine Projects approximately three months ago to improve my website's search visibility and overall online presence. Working with Shawn and his team has been an outstanding experience from start to finish. The team conducted a comprehensive audit of my website and delivered proactive, actionable strategies to enhance both its design appeal and search engine performance. They then implemented the recommended changes efficiently and professionally. Shawn is hands-on, accessible, and takes the time to explain his recommendations in clear terms, which made the entire process transparent and collaborative. Within three months, my website has a noticeably more polished, professional appearance and is now ranking number one in organic search results a significant improvement in visibility that has directly benefited my business. I highly recommend Search Engine Projects Digital Marketing to any company seeking a knowledgeable, responsive SEO and digital marketing partner.

    • Marjan Khorrami
      Marjan Khorrami President at Khorrami Chiropractic Wellness Center
      5.0★

      SEO Review from Marjan Khorrami

      I was referred to SEP marketing company by an attorney friend to redesign my website and handle my SEO and marketing. He said "if it doesn't work for you I will pay everything you paid this company". From the moment we started working together, the experience has been outstanding. They created an excellent website that looks professional and is easy for patients to navigate. Since launching the new website and starting new marketing strategy, our patients traffic has increased noticeably. They also consistently create informative and engaging content for our social media, which has helped strengthen our online presence. And what truly sets them apart is their responsiveness, no matter when I call, they always answer and are always ready to help. I only wish I had started working with them much sooner. I highly recommend Search Engine Projects company for any business looking to grow.

    • Shabnam Zafarmand
      Shabnam Zafarmand Owner at Mission Art Center
      4.8★

      SEO Review from Shabnam Zafarmand

      pivotal role in elevating the online presence and local visibility of Mission Art Center, an esteemed art school in Orange County. Recognizing the centers mission to inspire creativity and nurture talent, SEP crafted a comprehensive digital marketing strategy that began with a modern, visually engaging website redesign. The new website showcased Mission Art Centers vibrant classes, workshops, and events, making it easier for prospective students and parents to explore the curriculum, view art galleries, and register for classes seamlessly.SEP didnt stop at just an aesthetic revamp; they optimized the website for local SEO to ensure it ranked prominently for key search terms like art classes in Orange County and best art school near me. With strategically placed keywords, optimized meta descriptions, and fast-loading pages, Mission Art Centers site began to appear on the first page of Google search results.In addition to website development and SEO, SEP implemented a targeted ads management campaign across Google Ads and social media platforms. By identifying Mission Art Centers ideal student demographic, SEP crafted compelling ad creatives and copy that highlighted the centers unique programs, family-friendly atmosphere, and professional instruction. These ads not only boosted brand awareness but also drove measurable increases in website traffic and enrollments.Regular performance tracking and reporting enabled SEP to fine-tune the campaigns, ensuring continuous improvement and maximizing the return on investment. SEPs efforts resulted in a significant increase in inquiries, a spike in organic search visibility, and a noticeable uptick in class sign-ups, making Mission Art Center a go-to destination for art education in the local community.Thanks to SEPs expert website design, SEO, and advertising, Mission Art Center now has a strong online presence that reflects its vision and draws aspiring artists from across the region.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Website & application development

    Promodex is your long-term digital partner. We deliver UI/UX design, front/back-end development, marketing (SEO, SMM, PPC), support, automation, and custom CRM/ERP solutions. 12+ years of experience. Need a turnkey solution? Lets talk!...

    Top Services:

    • Web Development
    • eCommerce Development
    • WordPress Website Design
    • Web Design
    • Mobile App Development
    • Show more
    Location
    Cheyenne, Wyoming
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    20 Projects Listed

    Promodex Services

    • Web Development
    • eCommerce Development
    • WordPress Website Design
    • Web Design
    • Mobile App Development
    • SEO
    • UI/UX Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Fleet Care
    • IT rating LTD
    • DVL Express
    • IT-Rating.com Inc.
    • ElmiraMedins S.L.
    • Unibox
    • SKY LINE RESORT DOO
    • SERVIRED SP. Z.O.O
    • PureMaids Inc.
    • Expertyco Sp.z o.o
    Data sourced from the agency's DesignRush profile

    Promodex Reviews & Testimonials

    • Oleksii Shapran
      Oleksii Shapran CEO at PioGroup
      5.0★

      Web Development Review from Oleksii Shapran

      To create an online store that fully meets the needs of our business, we turned to Promodex. The main focus was on developing a modern and user-friendly design, creating intuitive functionality, as well as API development and AI implementation.A modern online store was created with a unique design, API integration, the introduction of artificial intelligence for personalization, optimization of all processes and ensuring stable operation, which led to increased efficiency of online sales and improved user experience.

    • Sergei Kolozenko
      Sergei Kolozenko CEO at Megasite
      5.0★

      Web Development Review from Sergei Kolozenko

      We have been working with this company for a year and a half on internal projects of our company. During the entire period of work, there were no problems with the quality of work or with the timing of work. The assigned tasks are performed in accordance with the contract. Promodex has established itself as a proven and reliable contractor in the field of development and technical support of websites on cms opencart and wordpress.

    • Valeriia Donetskova
      Valeriia Donetskova Marketing Specialist at Inweb
      5.0★

      Web Development Review from Valeriia Donetskova

      I am very pleased with the result of the work of the Promodex team on the development of our corporate website based on the Laravel framework. The development process was very efficient and professional. The team demonstrated in-depth knowledge and experience in working with Laravel, which allowed us to create a website with high performance, reliability and security.I would especially like to note the individual approach to our project and the willingness to take into account all our wishes and requirements. The developers were always in touch, promptly responded to our requests and listened attentively to our suggestions. Thanks to this, the cooperation process was as comfortable and effective as possible.The result of the work exceeded our expectations. We have received a high-quality, modern and functional website that perfectly meets our business needs. Many thanks to the Promodex team for their professionalism, creativity and high level of service. I recommend this company to anyone who is looking for a reliable partner for developing web projects based on the Laravel framework.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • AI-ready Senior Engineers and Dedicated Teams in ~60 hours

    Founder-led IT staff augmentation for small-mid companies. We solve problems you haven't fully scoped yet...

    Top Services:

    • eCommerce Development
    • Software Testing
    • AI Development
    • Mobile App Development
    • Software Development
    • Show more
    Location
    New York City, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    2 Projects Listed

    UASOFTDEV Services

    • eCommerce Development
    • Software Testing
    • AI Development
    • Mobile App Development
    • Software Development
    • VR/AR
    • Blockchain
    • Staff Augmentation
    • DevOps Consulting
    • WordPress Website Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Dwelly
    • Managed IT Experts
    • Hazy
    Data sourced from the agency's DesignRush profile

    UASOFTDEV Reviews & Testimonials

    • Slava Kostiuk
      Slava Kostiuk Full-Stack (Python, Node.js, React) Developer and Flutter+Java+AI+AR Developer at UDS Systems
      5.0★

      Software Development Review from Slava Kostiuk

      We initially approached UASOFTDEV with a relatively straightforward request: a WordPress website and a Senior React/Node/Python Developer for backend and API development. What impressed us immediately was how quickly they understood our needs and delivered relevant candidates. We received the first 5 candidates within 60 hours, exactly as promised. The developers were skilled, experienced, and cost-efficient, so we decided to continue working with UASOFTDEV. Later, we returned with a much more complex project: an already-live AI beauty ecosystem combining a Smart Mirror, mobile app, AI skin analyzer, and AR makeup. This required a Senior Flutter Engineer who could join an existing team and work with Flutter, Banuba SDK, Java/native technologies, and a production environment. UASOFTDEV matched us with a senior Flutter engineer within 60 hours. He integrated quickly into our existing team and provided the 24/7 production support we needed. During the 5.5-month engagement, we delivered 10+ major features, shipped 15+ releases across 3 product environments, and launched 2 premium subscription features. What we valued most was the consistency of their approach. Production issues and new feature requests were handled quickly, communication was personal and responsive, and the team remained highly engaged throughout both projects. The fact that we came back to UASOFTDEV with a second, significantly more technically demanding AI/AR project is probably the strongest proof of our satisfaction. They successfully scaled from a simple staffing request to supporting a complex live product without losing the same level of responsiveness, quality, and personal attention.

    • Khrystyna Sliana
      Khrystyna Sliana Digital Marketing Manager at Red Jumpers Agency
      5.0★

      DevOps Consulting Review from Khrystyna Sliana

      We hired a DevOps engineer from UASOFTDEV to handle a multi-entity AWS infrastructure split. The project was completed on schedule, with zero downtime and great attention to security and data integrity. Recommended.

    • Leonid Viktorov
      Leonid Viktorov СЕО at Biz Adviser
      5.0★

      Dedicated Team Augmentation Review from Leonid Viktorov

      I am the CEO of Biz Adviser, a business consulting company. We work with companies on strategic business initiatives, digital transformation, and improving business performance. We partnered with UASOFTDEV when we urgently needed additional engineering capacity. I was looking for proven senior developers and did not have time to spend weeks sourcing candidates and conducting multiple interviews. UASOFTDEV offered to provide vetted Ukrainian developers within 60 hours, which was exactly what we needed. The team provided senior engineers with strong technical expertise and excellent communication skills. We worked with developers across PHP, Node.js, Python, and React, depending on the project requirements. They were reliable, proactive, and able to understand not only the technical tasks but also the broader business context. The developers contributed to several important initiatives, including the implementation of an AI agent, and helped us move projects forward faster while keeping development costs under control. UASOFTDEV delivered what they promised. The process was straightforward, communication was reliable, and the developers were able to start working quickly without compromising on quality. The pricing was a good fit for our budget, and the overall value for cost was excellent. I also appreciated the cultural fit and the team's ability to communicate effectively and take ownership of their work. I would definitely recommend UASOFTDEV to companies looking for reliable staff augmentation with senior Ukrainian developers. They are a trustworthy partner that can provide strong engineering talent quickly and help businesses deliver important initiatives without the overhead of a lengthy hiring process.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Innovative Web & Custom Soft Development Solutions

    DESIGN, DEVELOP, DEPLOY!!! The PRIME is a team of highly skilled and experienced professionals in the field of Web Development and Custom Software Development PRIME means - Punctuality, Quickness, Honesty and Professional work! WE HAVE GOT YOU COVERED!!!...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • Web Design
    • UI/UX Design
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    4 Projects Listed

    PRIME IT Services

    • Software Development
    • Mobile App Development
    • Web Development
    • Web Design
    • UI/UX Design
    • eCommerce Development
    • Digital Services
    • IT Services
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Stichting International Youth Bridges
    • Global Business Vectrium
    • SABEL - The Conscious Glitterati
    • 90MinFoot
    • Apex Law Group
    Data sourced from the agency's DesignRush profile
  • AI Enabled Digital Marketing Partner

    EZ Rankings is an award-winning digital & social media marketing company based in India with other branches based in USA, UK, Canada, Austrailia, UAE. Our goal is to keep you ahead of the competition by offering simple, customized yet effective solutions...

    Top Services:

    • Digital Marketing
    • Branding
    • SEO
    • PPC
    • Social Media Marketing
    • Show more
    Location
    Philadelphia, Pennsylvania
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    5 Projects Listed

    EZ Rankings Services

    • Digital Marketing
    • Branding
    • SEO
    • PPC
    • Social Media Marketing
    • Web Development
    • Web Design
    • eCommerce
    • CRO
    • UI/UX Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Yatra
    • Casio
    • Cover fox
    • Honeywell
    • Swing Alpha
    • Kajaria
    • Kajariaply
    • Fabhotels
    • Radington
    Data sourced from the agency's DesignRush profile

    EZ Rankings Reviews & Testimonials

    • Junette Kearns
      Junette Kearns Review from Google
      1.0★

      Junette Kearns's Review Sourced from Google

      EZ Rankings is extremely disappointing.The services did not deliver the quality that was promised. The company charges premium prices for services such as website design, SEO, and SMO, but the results fell far short of expectations. Despite significant investment, I did not see the level of progress, performance, or return that was discussed during the sales process.Communication was another major issue. It often felt difficult to get clear answers, timely updates, or meaningful support when concerns were raised. The team did not appear well-coordinated, and resolving issues took much longer than expected.I also felt that expectations were set very aggressively during the sales stage, but the actual delivery did not match those expectations. Promises regarding growth, rankings, and overall project outcomes seemed much stronger than what was ultimately achieved.For businesses considering SEO, SMO, or web development services, I would recommend asking detailed questions about deliverables, timelines, and measurable results before signing a contract. Based on my experience, I would not choose to work with this company again.

    • Hrithik Tharol
      Hrithik Tharol Review from Google
      5.0★

      Hrithik Tharol's Review Sourced from Google

      EZ Rankings assisted us with improving our online presence. Their structured approach and willingness to answer questions made the process straightforward and comfortable for our team.

    • Mark Pear
      Mark Pear Review from Google
      1.0★

      Mark Pear's Review Sourced from Google

      I would not recommend this company based on my experience. Communication was inconsistent, and I did not receive the level of service I expected. Project updates were limited, and several concerns remained unresolved despite multiple follow-ups. Overall, I was disappointed with the experience.

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

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