Best C# Development Companies

8 Companies-Rankings updated: September 03, 2026

We evaluate every agency on DesignRush for technical expertise, delivery quality, and verified feedback to help businesses find reliable software development services. Some listings may be paid.

C#
C# Development × Hardware & Networking × $10,000 - $25,000 ×Clear Filters
  • U1CORE A product studio for multi-sided platforms. Marketplaces, exchanges, auctions, fundraising

    We're a product studio for multi-sided platforms a one-stop team for founders and operators building marketplaces, exchanges, auctions, fundraising platforms, and operational CRMs. We deliver end-to-end: product design, engineering, platform strategy, content, motion, brand, and the marketing infras...

    Top Services:

    • Product Design
    • Web Design
    • UI/UX Design
    • Branding
    • Design Services
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $60/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    90 Projects Listed

    U1CORE Services

    • Product Design
    • Web Design
    • UI/UX Design
    • Branding
    • Design Services
    • Digital Services
    • WordPress Website Design
    • Web Development
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • xLabs
    • KredoBank
    • Blockchain Insights
    • OneClick Labs
    • Wormhole Scan
    • Profoundly
    • SellifyAI
    • Gathering Israel
    • IQON
    • YieldNest
    Data sourced from the agency's DesignRush profile

    U1CORE Reviews & Testimonials

    • Helen Guzenko
      Helen Guzenko Business Development Manager at Wezom
      5.0

      Web Design Review from Helen Guzenko

      We engaged U1CORE to develop and build a scalable, multi-sided marketplace platform. They were fully responsible for the product design and front end, while our team handled the back end, and their expertise in the marketplace space was evident from day one they understood the dynamics of interaction between buyers and sellers without needing a detailed explanation of the underlying principles. They provided a needs analysis, complete UX/UI for all key workflows, a reusable design system, and a responsive front-end built on React, integrated with our CMS. The platform launched on schedule, the time it took to onboard sellers was significantly reduced, and the design system accelerated our internal work on future features. Project management was top-notch clear sprints, proactive communication, and quick responses when we had to reevaluate priorities. It felt as though we were working with an extension of our own team. We highly recommend them to anyone building a complex marketplace product.

    • Dmytro Romaniuk
      Dmytro Romaniuk CEO & Founder at OmiSoft
      5.0

      Web Design Review from Dmytro Romaniuk

      Working with U1CORE on our investment banking website was an extraordinary experience. The process began with an initial meeting, during which they carefully studied our specific needs. They then provided a detailed project estimate, including the scope of work and timeframe, perfectly tailored to our project. They took care of every detail, and we were able to agree on all aspects, especially the inclusion of a non-disclosure agreement, which was extremely important to us.The U1CORE team was exceptional. We were introduced to a project manager who was always available and ready to help with any questions. Communication was seamless throughout the project. The designers assigned to our project were highly skilled professionals, which was reflected in the quality of their work.The project was completed on time, without any delays, which was a big plus for us. The end result exceeded our expectations the website was not only visually impressive, but also functional and tailored to the needs of our industry.Overall, U1CORE's attention to detail, efficiency, and professionalism made this collaboration a great one. We are very pleased with the result and highly recommend them for any web design needs.

    • Alexey Cherevuta
      Alexey Cherevuta COO at DevIT Group
      5.0

      UI/UX Design Review from Alexey Cherevuta

      Working with U1CORE was an easy and productive experience. They took full ownership of the design side of the project, while our team handled the development. Their designs were delivered quickly, clearly structured, and matched business needs perfectly. Communication was smooth, the team was responsive to every request, and deadlines were always met. Thanks to this collaboration, we launched a product that was not only functional but also user-friendly and visually strong. I would gladly recommend U1CORE as a reliable design partner for joint projects.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Designing Bright For The Hype.

    Brightlab is an independent design & development studio that has one rule helping startups and big-scale enterprises build the most innovative online products in the market...

    Top Services:

    • Web Design
    • eCommerce Development
    • Web Development
    • UI/UX Design
    • Software Development
    • Show more
    Location
    Chicago, Illinois
    Number of Employees
    50 - 99
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    11 Projects Listed

    Brightlab Services

    • Web Design
    • eCommerce Development
    • Web Development
    • UI/UX Design
    • Software Development
    • Mobile App Development
    • IT Services
    • AI Development
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • MURAL Labs
    • Songsterr
    • HomesCooks
    • Alpha One
    • eDomus
    • TELE2
    Data sourced from the agency's DesignRush profile

    Brightlab Reviews & Testimonials

    • Yiannis Kaznessis
      Yiannis Kaznessis Founder and CEO at AgThera Inc.
      5.0

      Web Design Review from Yiannis Kaznessis

      Our website was established and redesigned by Brightlab, and it receives a lot of traffic. Our interaction with Brightlab team was exceptional. They were dependable, communicative, and responsive. They were really easy to work with and quickly grasped what I was striving for. Additionally, there weren't many mistakes to fix after development. Incredibly capable and productive team!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Your Global Partner for Digital Transformation

    Comrax Group is a worldwide development company offering internet solutions, offshore development services, and API solutions. We are dedicated to delivering top-notch services that go beyond client expectations. Our expertise encompasses creating attractive websites, user-friendly web portals, and tailored...

    Top Services:

    • Web Development
    • Web Design
    • WordPress Website Design
    • UI/UX Design
    • Software Development
    • Show more
    Location
    California City, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $85/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    4 Projects Listed

    Comrax Services

    • Web Development
    • Web Design
    • WordPress Website Design
    • UI/UX Design
    • Software Development
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • BlackBerry
    • Jewish National Fund
    • BMW
    • Microsoft
    • Isuzu
    • INFINIDAT
    • Fashion TV
    • Suzuki
    Data sourced from the agency's DesignRush profile

    Comrax Reviews & Testimonials

    • Ryan Penn
      Ryan Penn Founder at White Hawk
      5.0

      Web Design Review from Ryan Penn

      We engaged Comrax to revamp our website, and their level of professionalism and creativity truly exceeded our expectations. From day one, their team took time to understand our vision, offer insightful recommendations, and keep us updated every step of the way. They not only delivered the project on time but also stayed flexible with our requests for adjustments, ensuring the final result perfectly matched our brand identity.The quality of Comrax's work is outstandingthey crafted an intuitive, visually appealing design that has already garnered positive feedback from our clients. They were consistently responsive throughout the project, which made collaboration seamless and stress-free. We also found their pricing to be fair and transparent, making their services a great value for the results provided.Our entire team is thrilled with the final product, and we look forward to continuing our partnership with Comrax on future initiatives. We highly recommend them to anyone seeking a reliable, innovative web design partner.

    • Ran Zahavi
      Ran Zahavi BizDev at TechWize
      5.0

      Drupal Review from Ran Zahavi

      Outstanding Development Partner ComraxAt TechWize, we had the pleasure of partnering with Comrax for the development of three different websites on the Drupal platform. Their expertise in creating robust and user-friendly content management systems (CMS) has significantly enhanced our ability to manage and update our websites seamlessly.From the outset, the Comrax team demonstrated a deep understanding of our requirements, delivering solutions that were not only innovative but also highly tailored to meet our specific business needs. Their knowledge of Drupal allowed for flexible and scalable solutions, enabling us to evolve our websites as our business grew.The communication throughout the project was clear, responsive, and proactive. Comraxs commitment to timelines and quality made the entire process smooth and efficient. The result has been a set of highly functional, visually engaging websites that have greatly improved our online presence.We highly recommend Comrax to any company looking for a top-tier development partner. Their professionalism, technical expertise, and dedication to customer satisfaction are second to none.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Engineering Smarter, Faster, and Scalable Solutions.

    At MatechCO, we empower businesses with cutting-edge digital solutions. Since 2009, we have been at the forefront of technology, delivering scalable, future-ready software tailored to the unique needs of enterprises worldwide...

    Top Services:

    • IT Services
    • CRM Consulting
    • Mobile App Development
    • Web Development
    • IoT
    • Show more
    Location
    East Brunswick, New Jersey
    Number of Employees
    100 - 249
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $10,000 - $25,000

    Matech CO Services

    • IT Services
    • CRM Consulting
    • Mobile App Development
    • Web Development
    • IoT
    • Software Development
    • Cloud Consulting
    • eCommerce Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Mobil
    • Polaroid
    • People's Trust Insurance Company
    • Brainshark
    • Intralinks
    • Corpay
    • SkyMall
    • Wolf Camera
    • SolaPayments
    Data sourced from the agency's DesignRush profile

    Matech CO Reviews & Testimonials

    • Talha Rasheed
      Talha Rasheed Review from Google
      5.0

      Talha Rasheed's Review Sourced from Google

      I've been working with them as a client for almost 6 years, and it has been an amazing experience.

    • EHSAN KHAN
      EHSAN KHAN Review from Google
      4.0

      EHSAN KHAN's Review Sourced from Google

      My tenure at Matech Co has been a valuable and rewarding experience. I gained important skills, worked with supportive colleagues, and contributed meaningfully to team goals. I am grateful for the opportunities I was given and the knowledge I’ve gained throughout my time here.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • AI Driven Software Development Company

    Bacancy stands as a top Reactjs Development Company, offering secure, scalable, and sustainable React solutions. Specializing in diverse frameworks and applications, we provide up to 40% savings on costs and a dedicated team for tailored solutions, ensuring your business is primed for growth...

    Top Services:

    • Mobile App Development
    • Web Development
    • eCommerce Development
    • Web Design
    • VR/AR
    • Show more
    Location
    Florida, Massachusetts
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    5 Projects Listed

    Bacancy Services

    • Mobile App Development
    • Web Development
    • eCommerce Development
    • Web Design
    • VR/AR
    • Software Development
    • IoT
    • Software Testing
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Laura Odorczyk
    • Bryan
    • Gerry Dunne
    • Berlin
    Data sourced from the agency's DesignRush profile

    Bacancy Reviews & Testimonials

    • Gordon Nall
      Gordon Nall Review from Google
      5.0

      Gordon Nall's Review Sourced from Google

      Over the past five years, we have steadily expanded our relationship with Bacancy Technology, increasing the number of engineers we engage through their team. As our partnership has grown, so has the value they deliver.What has impressed me most is how effectively their engineers have self-organized, shared knowledge, and cross-trained one another. Rather than operating as individual contributors, they function as a cohesive team, collaborating on complex challenges and supporting each other's success.Over time, we have entrusted them with increasingly critical and technically demanding work. They have consistently delivered high-quality results with minimal oversight from our onshore engineering team. Their professionalism, technical expertise, and ability to take ownership have made them a valuable extension of our organization.I would highly recommend Bacancy Technology to any company looking for skilled, reliable engineering talent and a true long-term technology partner.

    • Kunal Chavda
      Kunal Chavda Review from Google
      5.0

      Kunal Chavda's Review Sourced from Google

      We partnered with Bacancy Technology for a mid-scale development project, and the overall experience was very positive. Their team demonstrated solid technical skills, especially in understanding our requirements and translating them into practical solutions. Communication was smooth, deadlines were respected, and any challenges that came up were addressed quickly and professionally.What I appreciated most was their structured approach and the consistency they maintained throughout the project. The final delivery met our expectations, and the support they provided post-launch was equally dependable. Good choice if you’re looking for a team that’s accountable and technically capable.

    • Thomas
      Thomas Review from Google
      1.0

      Thomas's Review Sourced from Google

      Paid $3,560 for web development—received no usable work, no deliverables, and no meaningful communication. Contractual obligations were ignored. Extremely disappointing experience.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Innovate. Integrate. Inspire: Your Tech Partners.

    At the forefront of innovation, we are a pioneering technology firm weaving together software, hardware, and cutting-edge deep tech solutions. We aspire to inspire change and elevate possibilities through our innovative tech solutions...

    Top Services:

    • IoT
    • Software Development
    • AI Development
    • Mobile App Development
    • Web Development
    • Show more
    Location
    Krakow, Poland
    Number of Employees
    50 - 99
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    4 Projects Listed

    Codahead Services

    • IoT
    • Software Development
    • AI Development
    • Mobile App Development
    • Web Development
    • Blockchain
    • Web Design
    • VR/AR
    • Product Design
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Rheinmetall
    • Appetize
    • TickPredict
    • ScoreSplit
    • Captiv8
    • Fishangler
    • Spoton
    • Shift4
    • Respect Energy
    • Telebiz
    Data sourced from the agency's DesignRush profile
  • Turning vision into reality.

    At AP4 Digital, we specialize in creating tailored software solutions, including mobile and web applications. Our dedicated and innovative software development team is committed to delivering top-quality custom software products and business applications. We are at the forefront of shaping the future of...

    Top Services:

    • Software Development
    • Mobile App Development
    • CRM Consulting
    • ERP Consulting
    • Staff Augmentation
    • Show more
    Location
    Budapest, Hungary
    Number of Employees
    Under 49
    Average Hourly Rate
    $47/hr
    Minimal Budget
    $10,000 - $25,000

    AP4 Digital Services

    • Software Development
    • Mobile App Development
    • CRM Consulting
    • ERP Consulting
    • Staff Augmentation
    • Web Design
    • eCommerce Development
    • Graphic Design
    • Digital Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • BKK
    • HELL Energy Drink
    • Europ Assistance
    • Praktiker
    • Swiss Clinic
    • MagNet
    Data sourced from the agency's DesignRush profile
  • Augment Your Team

    Intelligaia is a CX Design company that works with Business Process Groups to transform the business value of their products. Intelligaia brings innovative DesignOps practices to bridge the gap between strategy and execution at speed and scale...

    Top Services:

    • UI/UX Design
    • AI Development
    • Software Development
    • Web Development
    • Mobile App Development
    • Show more
    Location
    Apex, North Carolina
    Number of Employees
    50 - 99
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $10,000 - $25,000

    Intelligaia Services

    • UI/UX Design
    • AI Development
    • Software Development
    • Web Development
    • Mobile App Development
    • Big Data Analytics
    • eCommerce Development
    • Staff Augmentation
    • IT Services
    • Managed Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Cisco Panoptica
    • DocuSign
    • Zuora
    • Hitachi Energy Powershop
    Data sourced from the agency's DesignRush profile

    Intelligaia Reviews & Testimonials

    • Raman Bhardwaj
      Raman Bhardwaj Review from Google
      5.0

      Raman Bhardwaj's Review Sourced from Google

      Intelligaia is led by creative individuals Rajiv and Cheena whose passion I have seen over the years for customer experience design strategy. They research deep into current trends in business centered design and UX and are always thinking of innovation. Highly recommended to businesses looking to scake their CX strategy.

    • Amit Shanker
      Amit Shanker Review from Google
      5.0

      Amit Shanker's Review Sourced from Google

      Rajiv and the team are exceptional are at designing concepts into reality. I have engaged with Intelligaia twice for early-stage product UX and have found the engagement to be highly professional, creative, and collaborative. I would highly recommend them!

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

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