Top 100 ASP.NET Developers in the United Kingdom
The Best of April 2026Looking for a top ASP development company in the United Kingdom?
Microsoft developed ASP.NET in 2002 as an open-source and server-side web development framework. It supports multiple programming languages include HTML, C#, F#, C++, and Visual Basic Net.
When hiring an ASP.NET developer, consider the specialties and years of experience needed for your project. Since the ASP.NET framework supports more than one programming language, your developer should have experience not only with ASP but also with your website's development languages. Beginner ASP.NET developers may be familiar with .NET, C#, HTML, and CSS, while more advanced developers will be familiar with .NET, additional programming languages, and development methodologies like Agile.
To assist you in your search for a partner, we’ve compiled this list of the top ASP.NET developers in United Kingdom. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best United Kingdom ASP Development Companies
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31$10,000+1,000 - 9,999 employeesBirmingham, EnglandRead More
Chetu, Inc. is a custom software development company headquartered in Plantation, Fla. with several additional locations: Las Vegas, Clearwater, Fla., Brentwood, Tenn., Plano, Texas, Schaumburg, Ill., Madison, Wis., Marietta Ga., Rijswijk, Netherlands, and Noida, India. They have a team of more than 1,000 employees who specialize in custom software development, web development, and mobile application development services. Founded in 2000, they continue to support clients of all sizes in the consumer products and services, financial services, and gaming industries.
Clients
Foot LockerIndustries
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32$10,000+10 - 49 employeesLondon, EnglandRead More
Founded in 2004, Computer Conquest is an IT managed services company. The company offers IT managed services, cloud consulting & SI, custom software development, IT strategy consulting, and more and has a small team. The company is in Cirencester, United Kingdom.
Clients
The Woodhouse Partnership Brickflow The International Stock Exchange London UndergroundIndustries
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33$25,000+250 - 999 employeesLondon, EnglandRead More
Flat Rock Technology is a development agency headquartered in London, with an office in Varna, Bulgaria. Since 2008, their team of 88 has been specializing in custom software development, mobile app development, UX/UI design, and more for mainly midmarket-size clients. They primarily serve clients in the IT, consumer products & services and media industries.
Clients
AudiocodesIndustries
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34$25,000+10 - 49 employeesLondon , EnglandRead More
AVAMAE is a software solutions agency run by a team of fewer than 50 professionals founded in 2011. Based in London, the company offers custom software, web, and mobile app development services for small and medium-sized businesses from various industries, such as business services, financial services, and health care.
Clients
BetDSIIndustries
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35$10,000+10 - 49 employeesLondon, EnglandMobile app development company CubeZoo was founded in 2011. The agency offers Mobile App Development, Web Development, Artificial Intelligence, UX/UI Design, and more and has a small team.Read More
Clients
Vodacom BMW Liberty Life Signal HillIndustries
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36$25,000+50 - 249 employeesCobham, EnglandMobcoder, an IT staff augmentation company, is located in Seattle, Washington; Cobham, England; Ghaziabad, India and Burnaby, Canada. The midsize company was launched in 2014. Their services include IT staff augmentation, Artificial Intelligence, UX/UI Design, BI & big data consulting & SI, and more.Read More
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General millsIndustries
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37$10,000+10 - 49 employeesLondon, EnglandHeadChannel Consulting, a software development company, is based in London, England; Katowice, Poland and New York, New York. The small team provides Custom Software Development, Artificial Intelligence, UX/UI Design, Web Development, and more and was founded in 2004.Read More
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The William Pears GroupIndustries
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38$50,000+50 - 249 employeesLondon, EnglandSigli, an IT strategy consulting company, is located in Antwerpen, Belgium; Vilnius, Lithuania; London, England and Amsterdam, Netherlands. The midsize agency was founded in 2015. Their services include IT strategy consulting, Custom Software Development, Low/No Code Development, IT staff augmentation, and more.Read More
Clients
Sensotec NVIndustries
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39$25,000+10 - 49 employeesYork, EnglandRead More
Thumbmunkeys Ltd is a mobile app development company based in York, United Kingdom. This company was founded in 2012 and has 25+ employees. Thumbmunkeys Ltd is responsible for mobile app development, web development, and wearable app development.
Clients
CapitaIndustries
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40$5,000+250 - 999 employeesLondon, EnglandRead More
Coders Dev is a web design and mobile app development company based in London with offices in Singapore and Abu Dhabi, U.A.E. The company, founded in 2010, has more than 500 employees and provides web development and AI services. Coders Dev serves small and larger-sized companies in the health care & medical, hospitality & leisure, consumer products & services, financial services, gaming, telecommunications, automotive, manufacturing, and e-commerce industries.
Clients
British TelecomIndustries
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41$10,000+250 - 999 employeesLondon, EnglandRead More
Softwire is a digital design, engineering and support agency, with offices in London, Cambridge and Manchester. Employing over 200 engineers we create bespoke digital software, mobile apps, and offer strategic IT consulting for some of the UK’s leading brands including the BBC, David Lloyd Clubs, Channel 5 and many large Government Departments.
Clients
The BBCIndustries
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42$25,000+250 - 999 employeesLondon, EnglandAI Engineering by Grid Dynamics, an IT staff augmentation company, is based in Zug, Switzerland; Wormerveer, Netherlands and London, England. They offer IT staff augmentation, Custom Software Development, and IT strategy consulting and were established in 1999.Read More
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43$10,000+250 - 999 employeesHarrow, EnglandRishabh Software is a software development company. They are located in Vadodara, India; Harrow, England; San Jose, California and Bengaluru, India and have a midsize team. Their services include Custom Software Development, Digital Engineering, BI & big data consulting & SI, cloud consulting & SI, and more. The firm was established in 1999.Read More
Clients
LindeIndustries
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44$25,000+10 - 49 employeesLondon, EnglandAtraX is a small IT strategy consulting company. The Tirana, Albania-based company was established in 2015. Their services include IT strategy consulting, IT staff augmentation, Custom Software Development, Web Development, and more.Read More
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45$25,000+250 - 999 employeesLytchett Matravers, EnglandInsight is a midsize cloud consulting & SI company. Founded in 2000, the company is based in Los Angeles, California; Kerala, India; Yerevan, Armenia and Lytchett Matravers, England. Their team focuses on cloud consulting & SI, unified communications consulting & SI, IT strategy consulting, Custom Software Development, and more.Read More
Clients
Colgate-PalmoliveIndustries
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46$5,000+50 - 249 employeesLoughborough, EnglandRead More
Development agency UNL Solutions LTD is headquartered in Loughborough, UK. Since the company was founded in 2006, their team has grown to 68 employees. UNL Solutions LTD specializes in IT managed services, e-commerce development, and mobile app development. They mainly work with mid-sized businesses.
Clients
CorevistIndustries
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47$10,000+2 - 9 employeesBristol, EnglandApplication development firm Blue Sparrow was launched in 2015. The company offers Mobile App Development, Custom Software Development, Artificial Intelligence, and AR/VR development and has a small team. The company is in Bristol, England.Read More
Clients
FanHub -
48$5,000+50 - 249 employeesTaunton , EnglandRead More
Software Solved is an Exeter, United Kingdom-based custom software development company. They specialize in custom software development, BI & big data consulting & SI, cloud consulting & SI, Artificial Intelligence, and more and were launched in 1998.
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49$10,000+50 - 249 employeesStanmore, EnglandSATVA Softech, an IT staff augmentation company, was founded in 2015. They are in Stanmore, England and Raleigh, North Carolina and have a midsize team. Their services include IT staff augmentation, Mobile App Development, Custom Software Development, and Artificial Intelligence.Read More
Clients
RitzziIndustries
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50$10,000+250 - 999 employeesHampshire, EnglandCommunication Crafts is a website development firm. They are located in Lewes, Delaware; Hampshire, England and Ahmedabad, India and have a midsize team. The firm offers Web Development, Mobile App Development, Video Production, IT managed services, and more.Read More
Clients
NutriMixologyIndustries
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51$25,000+10 - 49 employeesLondon, EnglandSilicon Reef is an Enterprise App Modernization company. Founded in 2016, the agency is located in London, England. The small team specializes in Enterprise App Modernization, IT strategy consulting, API Development, ECM consulting and SI, and more.Read More
Clients
Gulf Oil Bauer Media Group Warner Bros. Discovery Virgin Media O2Industries
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52$100,000+50 - 249 employeesEdinburgh, ScotlandClearSky is a website development firm. Located in Edinburgh, Scotland and Glasgow, Scotland, their midsize team provides Web Development, Custom Software Development, IT staff augmentation, and Mobile App Development. The firm was founded in 2018.Read More
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53$10,000+10 - 49 employeesRoyal Tunbridge Wells, EnglandRead More
Chilliapple Ltd., a mobile app development company, was launched in 2008. The small team specializes in mobile app development, e-commerce development, custom software development, and web development. The company is based in Kent, United Kingdom and , United Kingdom.
Clients
QuickvitIndustries
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54$5,000+10 - 49 employeesLondon, EnglandRead More
200OK Solutions is a mobile app development firm based in Ahmedabad, India. Founded in 2009, their team of 30 serves clients in the hospitality, transportation, and dental sectors. Services include custom software development and web design.
Clients
My ManuIndustries
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55$10,000+50 - 249 employeesLeicester, EnglandTulipTech Ltd. Is a software development company. They are headquartered in Leicester, England; Dhaka, Bangladesh and Ahmedabad, India and have a midsize team. Their services include Custom Software Development, Mobile App Development, Web Design, IT managed services, and more.Read More
Clients
World Television LtdIndustries
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56$25,000+50 - 249 employeesLondon, England2Base Technologies is a custom software development firm headquartered in London, England; Kochi, India; Dover, Delaware and Hilbert, Australia. The midsize agency was established in 2010. Their services include Custom Software Development, Artificial Intelligence, Mobile App Development, Enterprise App Modernization, and more.Read More
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United NationsIndustries
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57$5,000+2 - 9 employeesNorthampton, EnglandRead More
Full Metal Software is a bespoke software development agency located in Northampton, England. Founded in 2004, they have three employees specializing in full stack web development and innovative business solutions for small and midmarket companies, typically in business services, finance, and healthcare. Services include project management, code updating, CMS support, software development, and outsourcing.
Clients
YourGene HealthIndustries
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58$5,000+50 - 249 employeesLightwater, EnglandRead More
Ray Solutions Ltd is an IT staff augmentation company. They specialize in IT staff augmentation, custom software development, Artificial Intelligence, web development, and more and were established in 2012. Their midsize team is Lightwater, United Kingdom-based.
Clients
Bright NetworkIndustries
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59$1,000+10 - 49 employeesKent, EnglandCritical Mission Computing Ltd, a software development company, was launched in 1999. The small Kent, England-based team offers Custom Software Development, E-Commerce Development, Web Design, Artificial Intelligence, and more.Read More
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First Way ForwardIndustries
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60$100,000+50 - 249 employeesLondon, EnglandInfinity Technologies is a London, England-based software development company. The company specializes in Custom Software Development, Web Development, Mobile App Development, and IT staff augmentation and is midsize.The company was established in 2003.Read More
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