Best Software Development Companies in the UK

Many enterprise clients count One Beyond as their dependable custom software experts, so it’s no wonder the company has achieved such widespread success. With years of experience in their industry, this London-based agency is certainly here to make an impact.

One Beyond is a globally recognized leader in their sector and has provided focused and wide-reaching services for the company for the entirety of their working relationship. This includes UX design, UI, overall brand presence and visuals, and more.

If you are looking for a world-leading technical expert and developer, then CoreBlue is the perfect team for you. They believe that technology is used to improve lives and that is exactly what they do. You can trust this company to deliver well-rounded services from start to finish. From planning to maintenance, these guys got you covered.

One of their recent projects is with Propio, an investment startup platform. The CoreBlue team integrated APIs and platforms to help users create and manage their investment opportunities. They utilized React, PHP, Nginx, and AWS EC2 for the solution.
 

Custom software development firm Synetec is headquartered in London, United Kingdom. They provide custom software development, enterprise app modernization, Artificial Intelligence, cloud consulting & SI, and more and were launched in 2009.

Instil is an award-winning bespoke software development and training company based in Belfast, UK and founded in 2005. They have more than 50 employees that specialize in custom software development, mobile app development, and cloud consulting & SI for a range of clients mainly focusing on fintech, telecommunications, retail, automotive, IT/computing, professional services, media, consumer goods, and education industries.

A software development company hired Instil to build an Android version of their existing product and was tasked with creating a reliable product that's optimized in speed and performance. The team has been flexible and adaptive to the client's requirements and the internal stakeholders have thoroughly been impressed with their good attitude and top-tier development expertise.

Influential Software is a company that promises digital services that are tailored, delivered, and achieved at the highest level. With more than 250 active clients, they deliver software development, integration, testing, support, and training across multiple technologies, primarily in the Microsoft tech stack, and are validated by being a top 1% Microsoft Gold Partner.

They developed a SWIMS software that tells the Kent County council exactly how much climate change has cost in Kent over any given period.
 

PioGroup Software, a custom software development firm, is in Wien, Austria. The team provides custom software development, mobile app development, and web development.

Yojji is a Austin, Texas-based web development firm. The midsize firm was launched in 2017. Their services include web development, custom software development, mobile app development, web design, and more.

Old.St Labs is a consultancy and development business that provides innovative design and product development for startups and enterprises. The team is driven by a mission to empower innovators through technology.

Allegr is a community building application, which Old.St Labs worked on. The team was responsible for designing and developing the mobile app tailored to the client’s value proposition.
 

Objective is a software development company. Their small team is located in Great Baddow, United Kingdom. The company specializes in custom software development, BI & big data consulting & SI, Artificial Intelligence, conversion optimization, and more. The company was established in 1987.

AppDrawn Software is a London based production company specializing in creating bespoke software for small businesses. They work mainly in a wide variety of agencies ranging from business and financial services to education and government.

A recent example of their work was creating a system to allow schools to store the information of students for easy recall. The user-friendly system has increased their ability to bill clients in an efficient and consistent format.

The professionals at Innovify help promising businesses get ideas off the ground and convert them into scalable software. Their client portfolio is made up mostly of small to mid-sized businesses in industries like financial services, information technology, and retail.

One of their recent projects was developing the mobile platform for e-ordering service Instantt. The team at Innovify created an app the brings ordering, payment, and rewards programs to one place helping users skip lines and waits at their favorite restaurants while earning perks for their continued loyalty.

GCD is a software development firm established in 1999. They are located in Lurgan, United Kingdom and Dublin 2, Ireland and have a midsize team. Their services include custom software development, ux/ui design, mobile app development, and web development.

Inflecto Systems is a software developing company based in the UK and was founded in 2006. They have about 10 employees who offer custom software development, mobile app development, business systems, systems integration, artificial intelligence, consultancy, and IT support to a wide range of clients to energy & natural resources, health care & medical, and utility industries.

Chromocyte Limited engaged with Inflecto Systems to build a database management system for their educational and training agency and the solution should allow the development of complex experiments based on users' needs. Inflecto Systems' end deliverable has attracted users globally and the client was very impressed by the team and their unique attributes are a high level of skills in design and development.

Located in Edinburgh, United Kingdom, Lumi Design is a UX company. The small team offers ux/ui design, product design, web design, and branding. The company was launched in 2017.

With notable clients such as Google and The Wave, Hiyield is a digital product studio headquartered in London, United Kingdom. The team is focused on providing website applications, custom web portals, and CMS implementation services to SMBs from around the globe.

One of Hiyield’s notable projects was its web development, design, and SEO services partnership with Xigxag, an audiobook startup from London. The team delivered a catalog site and provided page mock-ups for the client. They also added key features such as APIs and site maps.

What do SXT and The Trussell Trust have in common? They’ve both turned to Bit Zesty for custom software development expertise. This UK-based agency has already made major waves with work for enterprise clients and startups alike.

When SwiftKey launched a platform targeting their unique users, Bit Zesty analyzed the entirety of their approach to refine their custom software strategy, create key features and design a strategy that would bring together all elements of the client’s brand. The result was a huge success, and continues to drive progress for the brand today.

Zerocoder is a Roseville, California-based software development firm. They focus on custom software development, web development, mobile app development, web design, and more and were founded in 2023.

Limeup is a product design agency based in London and was founded in 2019. They have about 50 employees that specialize in UX/ UI design, web design, mobile app design, digital product design, and SaaS services for a wide range of clients mainly focusing on financial services, business services, and e-commerce industries.

Impltech hired Limeup to design their software development firm's web pages for each of their new service offerings. Limeup adapted the overall style of the website and gave suggestions to maximize page conversion rates. The pages Limeup designed achieved conversion rates that matched and often exceeded the conversion rate of previously developed webpages. The team facilitated a straightforward design process where all feedback was recognized and all revisions quickly implemented which is why the client understood why each step was done and why it was needed and that's why the team left no room for uncertainty.