Top Custom Software Development Companies in the UK: Most Reviewed IT Providers on Clutch

Which software developers in the UK can one entrust with a custom software project? We offer a list of top software development companies from the UK that have impressive ratings on Clutch.

Custom Software Development

Custom software has long become a digital assistant for modern businesses. Such a solution is tailored to the needs of a particular company. It effectively supports workflows, reduces transaction costs, and helps the brand grow in a rapidly changing market. But it is important to choose a competent tech partner from the very beginning. So, you won’t have to hand over a failed software development project to another team. To make your search easier, we have selected the top 10 software development companies in the UK. Clutch recognizes them as the best candidates for custom development. Moreover, these are the most reviewed IT providers in 2023.

Andersen: Premium Software Development Services and Over 1000 Successful Projects

This European software development company with offices in the UK, Germany, Poland and three other countries has a verified gold status on the Clutch service, 97 positive reviews, and a rating of 4.9 stars. The IT firm has a remarkable 16 years of experience in 19 industries, top-notch international expertise (ISTQB, CSPO, CCNP, etc.) and a large talent pool of over 3400 specialists.

The team has implemented many complex projects such as the website for the humanitarian organization Swiss Red Cross, the Veryvox FinTech portal, an automation tool for the travel company TUI, the UniverSkin AI-powered platform to treat dermatological diseases, and other amazing software solutions. Siemens, Ryanair, Johnson & Johnson, T-Systems, and other notable corporations are among the firm’s clients. Currently, Andersen has over 200 running projects. Its employees are ready to start a new one within 10–15 days.

Customers mention the team’s professionalism, diligence, and ability to meet all deadlines. Clients are unanimous that cooperation with Andersen is a prerequisite for a successful project. Andersen’s professionals can seamlessly cope with non-standard tasks and offer relevant solutions.


Magora Systems: A Provider of Profitable Software

Magora Systems is another successful software developer in the UK, with numerous reviews. With 23 years of outsourcing experience in industries ranging from education to social platforms, this oldie has earned the trust of over 500 clients worldwide. This is why grateful customers have left over 50 reviews on the Clutch service, with an overall rating of 4.7 stars.

20% of the firm’s projects are custom software solutions. You can easily verify this fact by getting acquainted with the implemented platforms. Among them are the SwipedOn employee management software, the Pharm Card app for the sales department of a pharmaceutical company, the Tebengan car-sharing platform, and other projects. Many of them have attracted thousands of visitors, and some (like SwipedOn) got into the Deloitte “Technology Fast 500 APAC” rating.

Such customers as Danone, Unilever, Toyota, and the Royal College of Art love Magora’s impressive support services and the way they are carried out by the team.

Magora Systems

One Beyond: A Team Focusing on Custom Software Design and Development

This British custom software developer with almost 30 years of experience has long been among the leaders in the rankings by Clutch, UK IT Industry Awards, Good Firms, and other prominent research platforms. As of January 2023, the firm has 55 positive reviews, with an overall rating of 4.9 stars.

One Beyond creates revolutionary bespoke software through a skilful combination of Agile methodologies and technical know-how. Moreover, the team accompanies a product from the stage of thinking over a strategy and setting goals to development and technical support. Programmers and other IT professionals are skilfully transforming modern businesses. You can see it in such projects as the Smith & Nephew dashboard for surgical data transformation, the Pearson educational asset management software, The Real Estate Tool app for the real estate department, and similar solutions.

Customers highly appreciate the promptness of the team in building software, the flexibility, and the activity of employees. Some individual solutions, such as one governmental project, have helped save up to $544,377 per year in system operating costs.

One Beyond

Altamira: Tech Geniuses Speeding Up the Digital Transformation of Businesses

For 12 years, Altamira has been helping businesses quickly create and deliver digital products. Judging by its gold status on Clutch, over 50 reviews and a 4.9-star rating, this software development company from the UK is very efficient. The team specializes in machine learning, AI, image recognition technologies, and other innovations that enrich custom software with striking functionality.

The team has implemented over 140 projects, and 25% of them are custom solutions. You must have heard of the Ticker Tocker social trading streaming network, the Medform insurance platform, the website for HDR PRINT printing company, and UBER for Aquiline Drones.

Clients are unanimous that Altamira lives up to any expectations and ensures efficient communication and prompt settlement of problems. According to Ian Cash, the team’s ability to scale apps and turn ideas into reality are unmatched.


Hedgehog lab: A Tech Provider that Transforms Businesses

For over 15 years, Hedgehog lab has been focusing on custom development for financial, medical, logistics, and other industries. The software company says its employees carry out all tasks with a passion for excellence. Such attention to customers has resulted in 49 positive reviews on Clutch and a rating of 4.7 stars.

The team works in three countries (Great Britain, the USA, and Bulgaria), in three time zones. Over 16 years of operation, it has achieved good results in digital transformation for Globe Life, Kodak Alaris, Microsoft, and others. AJ Bell’s investment app, Deliveroo’s ingredient search platform, the PixPax photo printing software, and other projects evidence this.

Clients appreciate this top software development company from the UK for its reliability, discipline, and flexibility. Hedgehog lab gives valuable advice, supports businesses, and strives to improve the quality of products.

Hedgehog lab

Infinum: Authentic Digital Solutions for Gigantic Audiences

Since 2005, this top software development company from the UK has been synonymous with quality. Its employees create digital products appreciated by millions of people in the US and Europe. As the IT firm says, a customer may misspell its name but won’t be disappointed with its professionals. An impressive rating on the Clutch platform (4.8 stars and 42 reviews) is evidence of the quality of its services. Infinum has gained numerous awards from Red Dot, Inc. 5000, Deloitte, and Mixx.

The team takes on tasks of any complexity for healthcare, finance, and retail. Among the successful projects are the Philips MasterConnect smart lighting platform saving up to 75% on electricity costs, the Underline software solution for online scientific conferences, the Cormeum app for the treatment of patients with heart failure, and other innovative products.

Such brands as Philips, Nike, Porsche, Coca-Cola, and WB Games highly appreciate the team’s efforts. Clients mention the professionalism, friendliness, and effectiveness of Infinum’s employees. The Fashion Tech startup founder emphasized the versatility of their skills.


Digiryte: A Next-Generation App Creator

Digiryte designs digital solutions with future business needs in mind. The team easily creates software products from scratch, scales, or transforms existing apps and audits code and UX. Judging by customer ratings (4.7 stars and 41 reviews), the company is quite successful in its mission.

The team adds genuine value to projects for both start-ups and established businesses from healthcare, retail, finance, and education. Take a look at the team’s achievements to make sure: the AI dating app for Channel 4, the first blockchain platform to prevent bike theft, a virtual queue management system, and other projects. The NHS, Queen Mary University of London, Hilton, and Chaice highly appreciate the outcomes of Digiryte’s work.

Customers characterize the team as a connoisseur of the best practices of software development in the UK, an attentive partner, and the No. 1 candidate for permanent cooperation.



Ready4S: Fans of Technologies Accelerating Projects

Ready4S, a representative of the Polish “Silicon Valley”, has made itself known in the British market. Within over 10 years, it has implemented many projects for businesses from the UK. 60% of the company’s services are related to custom software development for small businesses, startups, and large corporations. Clients give the team 4.8 stars on Clutch, and the professionalism of the employees is mentioned in 41 reviews.

Ready4S skilfully takes a partner’s business to the next level, offering all stages of development, from consultation to design and deployment. It helps to bring a product to market before competitors. Uber, Roche, Lexly, and other brands have already seen this advantage of the team. The employees’ expertise is evident in their work: the WOW game application with AR effects, the Extra Life smart home system, the Bodydox body assessment platform, and so on.

Clients trust their ideas to Ready4S because its specialists solve problems of any complexity, perform work efficiently and on time, and promptly correct errors. They have a good understanding of the essence of the client’s business, responding flexibly to changing requirements.


Light IT Global: This Company Succeeds Where Other Teams Fail

As the Ukrainian bespoke software developer Light IT says, it creates the best technical solutions for businesses in Great Britain, the USA, Canada, Japan, China, and other countries. Employees have helped over 400 companies implement successful digital products that have generated over $200 million in revenue.

The firm specializes in 8 industries, from healthcare and transport to media and advertising. The company has built such software solutions as the UtiliStats energy optimization platform, the eHealth telemedicine application, the CreAitor interior design AI system, and other unique programs.

Customers rate the firm’s efforts at 4.9 stars, characterizing Light IT as a reliable and communicative team that overcomes any project difficulties. Thanks to Light IT, a Czech company achieved astonishing results. It increased customer flow by 53% and reduced time to market by 30%.

Light IT Global

Interexy: A Web3 Blockchain Consulting Agency

Interexy rounds out our list of software development companies in the UK. In addition to custom development, this IT firm deals with trends and technologies popular on the market: DeFi, P2E games, NFT, smart contracts, crypto wallets, and GamiFy. Therefore, it attracts the attention of reputable clients around the world (SAP, Sandbox, Square Inc., Xylo) and has a high rating on the Clutch platform (4.9 stars and 34 reviews).

The team has implemented over 120 digital projects for healthcare, finance, eCommerce, and other industries. You can evaluate innovative solutions by getting acquainted with the Coinhook exchange platform, the Ticket Meta marketplace, the ELOSIA home analysis application, and the Solstice personal health passport. There is no task that the team could not solve.

Customers are satisfied with the cooperation with Interexy. They are pleased with the stability of the apps, the team’s ability to solve problems promptly and the efficiency of the workflow. Knowing the quality of the services provided, many partners turn to this IT firm for new projects.



Our list of top software development companies from the UK is not exhaustive. If you need additional information about potential partners, Clutch has over 1,000 firms with good ratings but fewer reviews. But the candidates we have presented can successfully serve an organization of any level and profile.

Purity Muriuki
I'm a passionate full-time blogger. I love writing about startups, technology, health, lifestyle, fitness, electronics, social media marketing and much more. Continue reading my articles for more insight.


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