Who are UK’s Top Performers in Developer Tools Startups in 2023?

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UK has always been at the forefront of breaking technological boundaries and introducing innovative solutions across industries. The IT and software development sectors are no exception. In this article, we are excited to showcase some notable start-ups contributing to the niche and underappreciated domain of developer tools — an exciting arena where cutting-edge technology assists in creating even more technology. These companies make the lives of developers easier and cater to their needs, ranging from project management and cybersecurity to developer platforms and data handling.

Moreover, let us highlight the talented minds behind these remarkable companies. Despite operating behind the scenes, these visionaries and their team are reshaping the tech landscape with their innovative tools and solutions. They have been breaking barriers and championing the cause of efficient, agile, and smart technology development.

Here are some fantastic developer tools start-ups hailing from the UK that you should keep an eye on:


Krosswall, founded by Nitul Mehta and Rajul Shah, offers the most creative and intuitive Project Management tool for Agile and non-Agile Companies. Their solutions cater to the Scrum, Kanban, and SAFe methods within collaboration, project management, and SaaS software development.

Immersive Labs

James Hadley’s Immersive Labs develops a platform that measures and improves cybersecurity skills across businesses. The company works in cyber security, developer platform, and network security.

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OMNINGAGE is a Cloud Contact Centre platform powered by Amazon Connect. Its core areas are developer tools, information technology, and software.

Subtree Inc.

Founded by Luke Marsden, Subtree Inc. provides cloud native data management, giving developers the same power over data that source control gives them over code.


BUILDILY, founded by Elemi Atigolo, is a venture builder and an online accelerator platform supporting early-stage entrepreneurs and startups.


MobiBurn, founded by F altas, aims to make targeted marketing efficient and available for everyone by bringing data suppliers and marketers together.


Zaid Daba’een’s DeveloperHub.io enables developers to create beautiful and powerful developer hubs, hassle-free.


Horace Ho’s Nextlayer offers a mobile application specially developed for iOS users.


Founded by Bartek Wlodarczyk and Jakub Pietrzak, SKY ENGINE AI provides a Data Cloud for Deep Learning in Vision AI and the Metaverse.


Ben Rometsch’s Flagsmith lets you manage feature flags and remote config across web, mobile, and server-side applications.

Humane Technologies

Humane Technologies is a biotechnology company that develops and manufactures laboratory equipment and assays.

Asto Digital

Asto Digital is a developer of financial tools for freelancers and SMEs.

Uniting Cloud

Uniting Cloud is a recruiting agency that outsources in the area of DevOps, software engineering, data engineering, and cloud technology.


Robbie Gregorowski’s Sophoi is a trade and development firm that focuses on monitoring, evaluation, research, and learning expertise in people.

Sail CI

Founded by Christopher Shepherd and Jonathan Sharratt, Sail CI offers a cloud-native continuous integration platform with unlimited concurrency as standard.

These startups are reshaping the software development industry with their innovative developer tools. We hope this article gave you a good insight into the UK’s flourishing tech start-up scene.

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