Top 10 Custom Software Development Companies in London UK

Qubit Labs
Qubit Labs Team

The United Kingdom is among the world’s most technologically advanced countries.

Lots of businesses throughout the UK operate using IT and facilitate the appearance of new apps and digital tools.

Naturally, the number of custom software development companies grows with the demand.

What is more, lots of local IT service providers have expertise in the new and promising technologies like IoT, Big Data, wearable, cloud computing and so on.

Hence, whether you need just a piece of software or a sophisticated cloud-based system for processing large amounts of data, it can definitely be developed by one of within the UK.

List of Top Custom Software Development Companies in the United Kingdom

CompanyRatingHourlyRatesEmployeesFounded Clients
Qubit Labs5.0$35 - $4521...802016NanoReality, DrasticFun, InsuranceMenu, Romeeze, Huawei, AOBtravel,
The Software House4.9$25 - $4950…2492012CloudOx, Paay,, Flyo, Madglory, ASCO, Paay, Weorder, Synerise
Itransition4.8$25 - $491000…99991998Philips, Toyota, Adidas, Ebay, PayPal, Xerox, BP, Kaspersky
Intellectsoft4.8$50 - $99250…9992007Cirrus Insight, Eurostar, Guinness, Harley-Davidson
BJSS4.8$200 - $300250…9991993Barclays, HSBC, Credit Agricole, EasyJet, Channel 4
DCSL Software4.8$50 - $9950…2491994Mitsubishi Heavy Industries, Skanska, Virgin Media, IKEA
Qulix Systems4.8$25 - $49250...9992000Yandex, Hermes, Volkswagen, Fujitsu, Orange, Vodafone
SoftServe4.8$100 - $1491000…99991993Panasonic, Cloudera, BlackBerry, Liebherr
Eleks4.8$25 - $49250…9991991Autodesk, Havas, Xceedium, States of Jersey
Innovify4.6$25 - $4950…2492011LandBay, BetaRisk, Teaglo, Model Village, Stroer

Qubit Labs

qubit labs

Qubit Labs started in 2015 and has grown fast since then. Our mission is to find exceptional engineering talents and build best dedicated development teams to move custom software development and innovations forward.

You can meet with our representative in London to talk about your web development project any time!

Now Qubit Labs has several offices opened worldwide – 2 offices in Kyiv, Ukraine, one in Canada and a headquarter in Estonia.

The company delivers complex bespoke solutions for startups, SMBs and enterprise customers.

Along with setting up offshore development centers for the finance, retail, banking, and logistics industries, Qubit Labs has an expertise in building dedicated teams for mobile game development and testing.

The Software House

the software house

The Software House is a small to midsize bespoke development company in London, which mostly works with small businesses.

A small business that works with small businesses — this is the key feature ensuring that client’s project will have the most serious approach, as only a small business knows modern struggles of starting up.

Among the delivered projects are financial, manufacturing, educational, healthcare, and governmental ones.


software development outsourcing destinations guide



Itransition is a UK web development company with an office in London, focused on mid-size businesses.

Its key areas are information technology, finances, media, and retail. Itransition is able to scale the team in correspondence to your demand to reduce the development timeframe.

The company has 4 offices worldwide with more than 2000 specialists, so you may feel a comfort of a co-located team and its conveniences like the same time zone, language and ability to have meetings with your project’s dedicated team.




Trusted by lots of valued companies, Intellectsoft is one of the largest custom software development companies in London, with 5 offices in other countries across the globe.

Mostly focused on enterprises, it still works with middle to large companies and some smaller businesses.

It provides a good range of services from analysis to marketing of an already working software.

If you want to develop a mobile app, Intellectsoft is particularly accustomed to CRM and BI systems, Field Operations apps, and also all sorts of software for wearable electronics.



BJSS is a Leeds-based IT consulting, outsourcing and software development company with over 500 specialists.

BJSS has been developing and testing the internal and external software, as well as providing IT strategy consulting services to enterprises and mid-sized businesses for more than 15 years.

Other key areas of BJSS are IT security, BI and Big Data. The hourly rates may seem a bit high, but their clients speak for themselves.

DCSL Software

dcsl software

DCSL Software provides development services to mid-market businesses to satisfy their internal needs in design, maintenance and modernization of custom business software.

The company has delivered a few mobile development projects as well.

DCSL Software is ISO and Microsoft certified, and almost exclusively uses Microsoft products, frameworks and technologies.

It is a perfect premise for having really strong specialists in .NET, ASP.NET, and C#.
However, their prices do bite.

Qulix Systems


Qulix Systems has almost 20-year long history of designing, building and testing custom software for banking, financial, telecommunication, healthcare and retail businesses and web development and mobile development projects (Android, iOS).

Having a 300+ strong team, this web development company has an ability to utilize the most mainstream technologies, which assures delivery of any project on time and on budget. The company is also proficient with modern embedded and IoT technologies.



Softserve is another UK software development company with 13 offices worldwide including London.

Most of Softserve’s clients come from retail, healthcare, cyber security, and banking areas, demanding modern UX/UI design, timely delivery and good quality of code for their web and mobile applications.

Softserve has also experience with software development for embedded and wearable systems.



Eleks is an international software development company that provides team augmentation, technology consulting and architecture optimization services apart from the standard ones.

The main specialization of Eleks is the development of bespoke BI, SI and Big Data software for enterprises.

They have a sufficient number of employees to experiment with new technologies, which ensures the best approach to your projects and use of the best available know-hows.



If you want to work with professionals who build award-winning products, Innovify fits you best. This is a London-based company which creates applications for small and middle businesses in retail and finance.

This custom software development company consists of about 100 developers, designers and strategists that will work on your MVP or full-fledged product.

Innovify offers a plenty of engagement models like dedicated team, project-based or staff augmentation.


From start-ups to the world’s largest enterprises — any business can be perfectly comfortable in the UK if it needs its own custom software.

The UK has a large number of IT specialists in any knowledge area and technology, so virtually anything can be designed, built and supported there.

If you need a team of developers to create a tailor-made software for your business, contact us!


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