Top 10+ C# Development Companies in United Kingdom (UK) (2026)

Last Updated 15th August 2026 | Category: Top Web Development Firms

The List of Top 10+ C# Development Companies in United Kingdom | Top C# Developers United Kingdom (UK) August 2026

hyperlink infosystem

Details

Founded: 2011
Hourly Rates: < $25
Employees: 1000+
Avg. Project Cost: $50,000+
Ratings:
5.0
497 Reviews

Service Line

  • Web Development
  • Web Design
  • PHP Development
  • WordPress Development
  • AngularJS Development
  • Node.js Development
  • E-Commerce
  • Mobile App Development
  • UI/UX Design
  • AR App Development
  • CMS Development
Hyperlink InfoSystem is the leading Angular JS Development Company that delivers the best quality products for the clients across the world. It works on the whole diligence, perseverance as well as the enthusiasm of the most innovative app developers with easily establishing the strong foundation. They have a team of highly competent AngularJS developers from Hyperlink InfoSystem to get top-notch business apps built. While they believe in faster deployments, they have been working to improve their AngularJS development skills for creating most sorted and iterative solutions for web and mobile.

Hyperlink InfoSystem is dedicated to providing the best quality web development services using AngularJS. Their pool of experts has in-depth knowledge and extensive experience to develop dynamic applications making use of contemporary technology as they know the best practices to unleash the power of AngularJS.
justcoded

Details

Founded: 2007
Hourly Rates: $25 - $49
Employees: 50 - 249
Avg. Project Cost: $100,000+
Ratings: No reviews yet

Service Line

  • Web Development
  • Web Design
  • PHP Development
  • WordPress Development
  • Node.js Development
  • E-Commerce
  • Mobile App Development
  • CMS Development
  • Magento
JustCoded is a web development company which is established in 2007. Their mission is to transform traditional business industry and allow more opportunities by using the digital technology. The communication is always their initial focus. They keep their clients refreshed about every step. They develop, combine and migrate your eCommerce project or develop a customized CMS from scratch.
dcsl software

Details

Founded: 1994
Hourly Rates: $50 - $99
Employees: 50 - 249
Avg. Project Cost: $25,000+
Ratings: No reviews yet

Service Line

  • Web Development
  • Web Design
  • Mobile App Development
  • UI/UX Design
  • Custom Software Development
They take a unique approach by fusing traditional and new methods to develop quality software and website at speed while retaining our personal touch and fastidious attitude to planning. They have helped businesses ranging from start-ups & ventures, small owner-managed companies through to large public organizations. They strive to make your online investment in your business extremely profitable.
hyperarts

Details

Founded: 1998
Hourly Rates: $100 - $149
Employees: 2 - 9
Avg. Project Cost: $50,000+
Ratings: No reviews yet

Service Line

  • Web Development
  • Web Design
  • PHP Development
  • WordPress Development
  • MySQL
  • Drupal
  • UI/UX Design
  • Logo Designing
Since 1998, they have been designing and developing class websites for businesses, non-profits, and informative systems. Their favored development platform is the WordPress CMS, developing websites with a high level of elegance and functionality. They feel that there is a strong social context to Web development and have found there are more clarity and less confusion.
anvileight

Details

Founded: 2005
Hourly Rates: $50 - $99
Employees: 10 - 49
Avg. Project Cost: $2,500,000+
Ratings: No reviews yet

Service Line

  • Web Development
  • Web Design
  • Mobile App Development
The company provides best Python web development services to its clients. They develop web and mobile applications for both enterprises and entrepreneurs. The mission is to give high-quality technology services locally, nationally and internationally while making it simple to work inside the company and with the company from external. They found our business model and they are not beginners.
xibis

Details

Founded: 1998
Hourly Rates: $150 - $199
Employees: 10 - 49
Avg. Project Cost: $5,000,000+
Ratings:
4.7
7 Reviews

Service Line

  • Web Development
  • Web Design
  • E-Commerce
  • Mobile App Development
Xibis provides your project on time and to budget, working with the advanced technologies. They develop scalable, reliable, strong and secure. Their powerful leadership teams, which support their technological effort and try to either improve or extend their current troubles. They provide a system that performs exactly as intended and produces the results you asked for.
iflexion

Details

Founded: 1999
Hourly Rates: $25 - $49
Employees: 50 - 249
Avg. Project Cost: $50,000+
Ratings:
4.3
6 Reviews

Service Line

  • Web Development
  • Web Design
  • PHP Development
  • Drupal
  • E-Commerce
  • Mobile App Development
  • Ruby on Rails
  • Magento
They leverage their large knowledge base to provide best solutions that meet clients' demands, business, and budget expectations. Every project at Iflexion is under the supervision of a dedicated quality assurance team that monitors all project activities and results at each development phase. They are dedicated to providing maximum benefit to their clients to help them succeed in a constantly changing and challenging the business world.
lemberg solutions

Details

Founded: 2007
Hourly Rates: $25 - $49
Employees: 50 - 249
Avg. Project Cost: $10,000+
Ratings: No reviews yet

Service Line

  • Web Development
  • Web Design
  • PHP Development
  • Drupal
  • Mobile App Development
  • UI/UX Design
  • Internet of Things
Lemberg is, above all, a team of passionate professionals led by a core team that has been meticulously selected for more than ten years now. They are crafting our own culture to help attract talented people who want to become successful. Even though our skill set is diverse, they are united by the same values. They develop and maintain premium web solutions and digital operations that join brands with people enthusiastic about their mission. With over long years of experience in the digital game, they know what is right.
netguru

Details

Founded: 2008
Hourly Rates: $50 - $99
Employees: 50 - 249
Avg. Project Cost: $10,000+
Ratings:
4.3
7 Reviews

Service Line

  • Web Development
  • Web Design
  • PHP Development
  • AngularJS Development
  • Node.js Development
  • E-Commerce
  • Mobile App Development
  • UI/UX Design
  • Custom Software Development
  • Ruby on Rails
Netguru is a leading web development company that builds software for world changers. Their team follows an amazing app development process and has worked with various clients. They focus on presenting necessary value to their clients to help them increase their productivity & profitability. They help their clients with technology solutions to help them grow their business.
opus online

Details

Founded: 2009
Hourly Rates: $50 - $99
Employees: 50 - 249
Avg. Project Cost: $25,000+
Ratings:
4.3
8 Reviews

Service Line

  • Web Development
  • Web Design
  • PHP Development
  • WordPress Development
  • E-Commerce
  • Mobile App Development
  • Ruby on Rails
  • Magento
it is a leading web development company who has successfully delivered your business ideas into powerful solutions. They offer all clients through support after the launch and maintains a close partnership when maintaining and developing the site in the future. The team believes in keeping the communication channels open at all times so that your expectations are met.
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FAQ

Frequently Asked Questions

Got questions about our specialized technology solutions? We have the answers to help you make informed decisions.

Most Web Development companies in UK default to one of three setups: fixed-price when the scope is locked down in advance, time-and-materials when requirements are expected to shift, or a dedicated team model for ongoing product work that doesn't have a fixed end date. None of these is inherently better — the right fit depends on how settled your requirements actually are. A Web Development partner in UK worth working with will tell you honestly which model fits your project instead of pushing whichever one is easiest for them to sell.

The better Web Development companies in UK plan around the time difference rather than ignoring it — usually by shifting core hours to overlap a few hours with the client's day, and filling the rest of the gap with recorded demos, written status updates, and async-friendly tools. It's a solvable problem, but only if it's addressed explicitly before the project starts; agree on exactly how much overlap you need with your Web Development partner in UK up front.

The line items that push a Web Development project in UK over budget are rarely the obvious ones — it's usually the number of third-party integrations, how deep the testing needs to go, and what happens after launch in terms of support and maintenance. Compliance and security work, if your project needs it, adds a real chunk on top. A proper discovery conversation with your Web Development partner in UK should surface most of this before you sign anything.

A verified badge on a Web Development company's UK profile means the platform has confirmed the firm's identity and business registration, and has spoken directly with at least some of the clients referenced in their portfolio. It doesn't guarantee a perfect fit for your project, but it does rule out the more obvious risk of an unvetted or misrepresented listing — worth prioritizing over unverified entries when the choice is close.

Listen to what they ask about before they start talking solutions. A Web Development company in UK genuinely focused on outcomes will want to understand your users, your revenue model, and your competitors before proposing anything technical. One that jumps straight to a timeline and a quote without asking those questions is optimizing for winning the deal, not for whether the thing they build actually works for your business.

Start by filtering for Web Development companies in UK with direct experience in your vertical — a firm that has already built for healthcare, fintech, or retail will already understand the compliance rules and user expectations that come with it, instead of learning them on your project. Ask for case studies specific to your industry, and where possible, talk to a client from the same sector to confirm the experience is as deep as the portfolio suggests.
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