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.
 

Digiryte is one of the UK’s most respected developers of web and mobile applications, with clients that include NHS and Channel 4. Their main services include technical consultations, app development, data science, and staff augmentation.

One of Digiryte’s success stories involves an adaptable web app for Close Brothers, a UK banking group. Digiryte built a simple and robust Financial Wellbeing Scoring System application with a visually minimalistic dashboard for easy use.

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.

With an impressively robust client list that includes names like Hawk, STUDIO GRAPHENE empowers brands with mobile app development. Founded on design-first principles, this UK-based firm offers an emphasis on helping brands drive change.

One example of STUDIO GRAPHENE’s experience is their work for Sign Studio, one of the world’s respected brands. STUDIO GRAPHENE helped them target their audience of customers with a complete reevaluation of their strategy. This resulted in powerful engagement and an increase in perceived authority for them. 

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.
 

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.

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.
 

3 Sided Cube won App Agency of the Year at the 2018 UK App Awards and Most Innovative App Developer at the UK Agency Awards. Their team of 30+ designers and developers has served clients in over 90 countries across the world.

The American Red Cross has long-struggled to make donating blood an appealing way to make a difference. 3 Sided Cube created a mobile app that transformed blood donation. The app allows donors to track where their blood is being used to save lives.

Many startups consider TH-EY as their trusted software development partner specializing in ReactJS, Spring MVC, and other key technologies. The London-based team has years of experience working with SMBs from the consumer products, real estate, and business services industries. 

Among TH-EY’s biggest projects was its long-term partnership with Hatchpad, a rental community platform from London. The team initially developed the client’s website and is currently entrusted with support and maintenance. 

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.

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.

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.

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.

CM System Designs is a UK-based bespoke software development provider. The team is driven by their passion for building custom-made solutions for SMEs.

CM Systems Designs was tasked with PizzaExpress Live to build a booking management system. The team delivered a product that accounts for all the needs and requirements of the client.
 

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.

Many enterprise clients count 56 Degrees as their dependable e-commerce development 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 56 Degrees client is a globally recognized leader in their sector, and 56 Degrees 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.

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.