Devtools · United Kingdom

Devtools startups in United Kingdom

Early-stage devtools companies headquartered in United Kingdom, founded in the last 5 years. Drawn from public sources.

How we choose these companies

A public directory of early-stage European devtools startups. We aim to list every company that fits, not a hand-picked few. Here is exactly what that means, and why:

  • European: headquartered in Europe (EU, EEA, UK, Switzerland and nearby). We go by where a company is based, not just where it sells, because this is a map of the European ecosystem.
  • Early-stage: founded in the last 5 years. That is where the new ideas and the most active part of the ecosystem are; established household-name scaleups are a different list.
  • A real product company: builds a scalable technology product or platform. We leave out agencies, consultancies and local service businesses, which do not follow the same path.
  • Independent: a standalone company, not a subsidiary or brand of a larger corporation.
  • Active: currently operating, with a live website. We re-check regularly and remove companies that shut down, get acquired, or move out of scope.

We list only public information about what each company does. We deliberately do not track or show fundraising: who is raising, who is investing, or how much. This is a directory of companies, not a deal database.

Missing a company, or see something off? Suggest an addition or report an issue.

20 early-stage devtools startups in United Kingdom

A comprehensive list from public sources, not a hand-picked few.

  • Ascending Node

    Glasgow, United Kingdom

    Developing orbit design and mission analysis software for satellite operators.

  • Cerbos

    London, United Kingdom

    An open-source, policy-based authorization layer to decouple access control from application code.

  • Context.ai

    London, United Kingdom

    An analytics and product monitoring platform for LLM-powered applications.

  • Electric SQL

    London, United Kingdom

    An open-source replication engine for building local-first, real-time web and mobile apps.

  • Flower

    London, United Kingdom

    Open-source framework designed for federated learning and decentralized AI system training.

  • FlowFuse

    Winchester, United Kingdom

    An enterprise DevOps platform for deploying, managing, and scaling Node-RED applications.

  • Formance

    London, United Kingdom

    An open-source foundation of ledger and payment flow development tools for tracking flow of funds.

  • incident.io

    London, United Kingdom

    An incident management platform that helps tech teams respond to, resolve, and learn from incidents.

  • Lightdash

    London, United Kingdom

    An open-source business intelligence platform that integrates directly with existing dbt pipelines.

  • Liveblocks

    London, United Kingdom

    A real-time collaborative experience platform offering APIs and tools for multiplayer features.

  • Marqo

    London, United Kingdom

    An end-to-end vector search engine for building multimodal search applications.

  • Monite

    London, United Kingdom

    API-first embedded finance platform enabling B2B platforms to offer invoicing, accounts payable, and expense management.

  • Runware

    London, United Kingdom

    AI inference platform with a proprietary engine delivering fast image, video, and LLM generation through a single developer API.

  • Shuttle

    London, United Kingdom

    A Rust-native cloud development platform that simplifies deployment and infrastructure.

  • SurrealDB

    London, United Kingdom

    SurrealDB offers a multi model database that unifies document, graph, time series, and vector data with a SQL style query language.

  • Tenyks

    Cambridge, United Kingdom

    An MLOps platform helping computer vision teams debug, curate, and improve their training data and models.

  • Textualize

    Edinburgh, United Kingdom

    An open-source Python framework for building rich interactive applications in the terminal.

  • TitanML

    London, United Kingdom

    Developer tools that enable enterprises to optimize, compress, and deploy large language models efficiently.

  • Trigger.dev

    London, United Kingdom

    An open-source background jobs framework that allows developers to run long-running tasks without timeouts.

  • Versori

    Manchester, United Kingdom

    An enterprise data integration and workflow automation engine for complex system connections.

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