Top 100 Software Development Companies in the United Kingdom
The Best of October 2026
Software development is essential in the modern world and continues to expand. All companies require an online presence, and establishing an attractive space on the internet is the initial move to remain competitive. A partner that guarantees seamless operation of background systems, contributing effectively to a brand's success, holds significance—strong development results in more opportunities and an increased likelihood of success.
The only problem modern companies face is finding such a partner. One with technical expertise and a deep understanding and insight into the company’s industry. This is why The Manifest created and curated a list of the top performers in the software development industry in the United Kingdom. Make sure to go through each option and read the user-contributed reviews about them. Choose the agency that best suits your company’s needs and requirements.
Jump to Most Reviewed Companies
List of the Best United Kingdom Software Developers
-
31$10,000+250 - 999 employeesLondon, EnglandCustom software development firm SoftProdigy was launched in 2006. Their midsize team is in Sahibzada Ajit Singh Nagar, India; London, England and Dobbs Ferry, New York. Their services include Custom Software Development, Digital Engineering, Mobile App Development, AI Agents, and more.Read More
Clients
DeloitteIndustries
-
32$25,000+1,000 - 9,999 employeesLondon, EnglandItransition is a large ERP consulting and SI company established in 1998. Their services include ERP consulting and SI, Custom Software Development, CRM consulting and SI, Artificial Intelligence, and more. The agency is based in Decatur, Georgia; London, England; Vilnius, Lithuania and Warszawa, Poland.Read More
Clients
ExpediaIndustries
-
33$100,000+1,000 - 9,999 employeesLondon, EnglandN-iX is a business intelligence company. The large North Miami Beach, Florida-based team offers BI & big data consulting & SI, Artificial Intelligence, Custom Software Development, cloud consulting & SI, and more. The agency was founded in 2002.Read More
Clients
Bosch Siemens eBay Total EnergiesIndustries
-
34$75,000+1,000 - 9,999 employeesLondon, EnglandLaunched in 2000, NashTech is a custom software development firm. They are headquartered in London, England; Palatine, Illinois; North Balgowlah, Australia and Thành phố Hồ Chí Minh, Vietnam and have a large team. The firm provides Custom Software Development, cloud consulting & SI, Generative AI, Digital Engineering, and more.Read More
Industries
-
35$50,000+250 - 999 employeesLondon, EnglandOpinov8 Digital and Engineering Solutions is an AI Consulting company founded in 2017. The midsize London, England-based team focuses on AI Consulting, Custom Software Development, Artificial Intelligence, IT staff augmentation, and more.Read More
Clients
Fortune 500 Companies Renault Swisscom McDonald'sIndustries
-
36$25,000+250 - 999 employeesLondon, EnglandAltkom Software is a Warszawa, Poland-based custom software development firm. They specialize in Custom Software Development, Mobile App Development, Enterprise App Modernization, and cloud consulting & SI and were launched in 2000.Read More
Clients
BNP ParibasIndustries
-
37$50,000+10 - 49 employeesSarratt, EnglandCustom software development firm Clock Limited was established in 1997. The agency offers Custom Software Development, Mobile App Development, UX/UI Design, and Web Development and has a small team. The agency is headquartered in Sarratt, England and London, England.Read More
Clients
Riot Games Mythical Society Hearst International Tennis FederationIndustries
-
38$25,000+50 - 249 employeesLondon, EnglandLocated in L'viv, Ukraine; Lewes, Delaware and London, England, Incora is a software development firm. The midsize agency was founded in 2015. Their services include Custom Software Development, Artificial Intelligence, Web Development, AI Agents, and more.Read More
Clients
Ralph WutscherIndustries
-
39Undisclosed250 - 999 employeesLondon, EnglandTransparity is a software development company. The London, England-based firm was founded in 2015. The midsize team focuses on Custom Software Development, Enterprise App Modernization, Artificial Intelligence, IT managed services, and more.Read More
Clients
Apex NSPCC NHS LushIndustries
-
40$10,000+50 - 249 employeesLondon, EnglandInfluential Software is a London, England-based software development firm. The midsize team focuses on Custom Software Development, Web Development, BI & big data consulting & SI, IT managed services, and more and was founded in 1993.Read More
Clients
DeloitteIndustries
-
41$50,000+10 - 49 employeesEdinburgh, ScotlandZudu, a software development firm, was founded in 2014. They are headquartered in Edinburgh, Scotland and have a small team. Their services include Custom Software Development, Artificial Intelligence, Mobile App Development, and Digital Strategy.Read More
Clients
NHSIndustries
-
42$10,000+250 - 999 employeesLondon, EnglandSENLA is a midsize software development company. Located in Warszawa, Poland; London, England and Zagreb, Croatia, the agency was established in 2012. Their team focuses on Custom Software Development, Web Development, Mobile App Development, Blockchain, and more.Read More
Clients
Abbott BOSCH KPMG Western UnionIndustries
-
43$10,000+10 - 49 employeesBromley, EnglandCustom software development firm Goodface agency was established in 2016. The firm offers Custom Software Development, UX/UI Design, Web Design, Web Development, and more and has a small team. The firm is based in Bromley, England; Kyiv, Ukraine; Tallinn, Estonia and New York, New York.Read More
Clients
Magnetiq Bank 365 Games Corefy KARL STORTZIndustries
-
44$100,000+1,000 - 9,999 employeesLondon , EnglandSoftware development firm DataArt is located in New York, New York; Zug, Switzerland; London , England and München, Germany. Established in 1997, the large team provides Custom Software Development, IoT development, Artificial Intelligence, BI & big data consulting & SI, and more.Read More
Clients
Ocado Technology Metro Markets Nasdaq InvescoIndustries
-
45$5,000+50 - 249 employeesHarrow, EnglandIQlance Solutions LLC is a midsize custom software development company. The Toronto, Canada-based company was established in 2016. Their services include Custom Software Development, Mobile App Development, IT staff augmentation, Artificial Intelligence, and more.Read More
Industries
-
46$10,000+50 - 249 employeesLondon, EnglandBased in Sofia, Bulgaria and London, England, BGO Software - The Digital Health Lab is a custom software development firm. The midsize company was founded in 2008. Their services include Custom Software Development, IT strategy consulting, IT managed services, Mobile App Development, and more.Read More
Clients
NHS UK - Department of Health, Roche, LabCorp, IQVIA, Curaden, Ampersand Health, BodySpec and many other HealthTech companies.Industries
-
47$10,000+50 - 249 employeesLondon, EnglandFocusReactive is an Amsterdam, Netherlands-based web development company. The midsize company was established in 2019. Their team provides Web Development, Custom Software Development, Web Design, and E-Commerce Development.Read More
Clients
EasyPark Arrive RealThreadIndustries
-
48$50,000+50 - 249 employeesBelfast, Northern IrelandRead More
Instil Software is a software engineering firm based in Belfast, Northern Ireland. Founded in 2005, Instil has about 30 employees that work across a variety of industries. They offer custom software development, mobile app development, cloud consulting and software integration, IoT, and web development.
Industries
-
49$5,000+50 - 249 employeesStamford, EnglandSoftware development company Offshorly is located in Stamford, England and Quezon City, Philippines. The midsize team focuses on Custom Software Development, Artificial Intelligence, IT staff augmentation, Web Design, and more and was established in 2014.Read More
Clients
7-11 (Philippines) Dribble Portfolio: https://dribbble.com/offshorlyIndustries
-
50$10,000+50 - 249 employeesLondon, EnglandSnotor is a Rīga, Latvia-based custom software development firm. They offer Custom Software Development, Artificial Intelligence, IT staff augmentation, Mobile App Development, and more and were founded in 2007.Read More
Clients
Wilpower HUDD Isobiotics WellicsIndustries
-
51$5,000+10 - 49 employeesLondon, EnglandRead More
Based in London, United Kingdom, Goodspeed is a website development firm. The small firm was founded in 2022. Their services include web development, custom software development, and mobile app development.
Industries
-
52$10,000+50 - 249 employeesLondon, EnglandFounded in 2020, Old.St Labs is an AI company. The midsize team provides Artificial Intelligence, Custom Software Development, Web Development, and Mobile App Development. The firm is based in London, England.Read More
Clients
Mariana UFP The Military App Allegr East CareIndustries
-
53$1,000+1,000 - 9,999 employeesLondon, EnglandAI Consulting company Dotsquares is based in London, England; Mount Waverley, Australia; Albourne, England and Jaipur, India. The large team provides AI Consulting, Web Development, Mobile App Development, E-Commerce Development, and more. The firm was established in 2002.Read More
Clients
EricssonIndustries
-
54$50,000+50 - 249 employeesLondon, EnglandSupercharge is a Budapest, Hungary-based AI Agents company. Launched in 2010, the midsize team provides AI Agents, Custom Software Development, Mobile App Development, UX/UI Design, and more.Read More
Industries
-
55$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
-
56$250,000+1,000 - 9,999 employeesBelfast, Northern IrelandUnosquare, LLC is a custom software development firm. They specialize in Custom Software Development, Digital Engineering, IT staff augmentation, IT managed services, and more and were launched in 2009. Their large team is Portland, Oregon-based.Read More
Clients
Axos Financial, Green Dot Bank, GTreasury, G2 Risk Solutions and Blue Owl Private Equity Stitch Fix and IDX Harvard and McGraw Hill Athena Health and Foundation MedicineIndustries
-
57$10,000+50 - 249 employeesManchester, EnglandAI company Digica is based in Manchester, England; Łódź, Poland; San Jose, California and Berlin, Germany. Established in 2009, the midsize team focuses on Artificial Intelligence, Custom Software Development, and AI Consulting.Read More
Clients
LEGOIndustries
-
58$10,000+10 - 49 employeesLondon, EnglandRead More
Format-3 is a small user experience agency launched in 2023. Their services include UX/UI Design, Custom Software Development, Digital Strategy, and Web Development. The company is based in London, England and Nashville, Tennessee.
Clients
Natural History Museum Alpiq Scottish Power Majid al FuttaimIndustries
-
59$10,000+250 - 999 employeesLondon, EnglandInstinctools is a midsize software development company established in 2000. Their team provides Custom Software Development, Artificial Intelligence, BI & big data consulting & SI, Mobile App Development, and more. The company is headquartered in Stuttgart, Germany; Warszawa, Poland; Mississauga, Canada and Wilmington, Delaware.Read More
Clients
Daimler Fujitsu Nostrum SpexAIIndustries
-
60$25,000+50 - 249 employeesRickmansworth, EnglandLight IT Global is a web development company headquartered in Rickmansworth, England; Kyiv, Ukraine; Odesa, Ukraine and San Jose, California. The agency focuses on Web Development, Custom Software Development, IT staff augmentation, AI Agents, and more and has a midsize team.The agency was established in 2006.Read More
Clients
Pfizer Philips Healthcare Synthesis Health ABBIndustries
Get connected with a company for free
Tell us about your project, and we'll match you with vetted companies that meet your requirements.
Get connected with the right company for you
We'll do the work for you – finding and connecting you with service providers that meet your exact requirements.
Schedule ConsultationMost Reviewed Software Developers in United Kingdom
Check out a Software Developers in United Kingdom with the most new reviews in the past 12 months.
Most Reviewed
Software Developers
United Kingdom
- 11 10 new reviews
- 12 10 new reviews
- 13 9 new reviews
- 14 7 new reviews
- 15 7 new reviews
