Best PaaS Companies in London, United Kingdom
The 47 best PaaS companies in London, United Kingdom in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: m3ter.
Ranked: Best PaaS companies in London
| # | Company | Disclosed funding | Last round | Stage | Employees | Founder | Tech stack | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | AppShed Online app building tool | — | — | Public | 4 | Rob Sturgess Co-Founder | JoomlaPHPDebian+17 | — |
| 2 | Appsmakerstore DIY app building platform | — | — | Acquired | 11 | — | — | — |
| 3 | Arithmix Platform offering no code software to build applications | — | — | Unfunded | 28 | — | — | — |
| 4 | b.open Platform for application development | — | — | Unfunded | — | Spiros Skolarikis Founder & CEO | — | — |
| 5 | BlockPool Provider of blockchain solutions for digital asset and rights management | — | — | Unfunded | — | Ken Foster Founder & CTO | — | — |
| 6 | ConneXM Cloud-based open platform for IoT applications | — | — | Deadpooled | — | Paolo Ursino CEO & Co-Founder | — | — |
| 7 | Fimtra Offers an open source micro services platform | — | — | Unfunded | — | James Lupton Co-Founder | — | — |
| 8 | Firney Provider of cloud platforms and containers | — | — | Unfunded | — | Marc Firth Co-Founder & Managing Director | — | — |
Top 12 PaaS companies in London
#1
Seed · London, England · founded 2021 · 1 employees$4Mraised▾
Provider of an agentic orchestration platform automating software maintenance and modernization. The platform uses specialized AI agents to handle bug fixes and code migrations. It tracks, prioritizes, and refactors software to manage technical debt. The system supports continuous improvement from infrastructure to code. It assists with transformation, refactoring, and modernization of tech stacks. The platform also offers documentation and discovery features.
- Feb 2026Seed$4M
- Aug 2023Seed—
#2
Seed · London, England · founded 2020 · 1 employees$6Mraised▾
Cloud based application development and deployment solution. It enables users to develop and deploy applications using the Rust framework. It provides infrastructure definitions from code function signatures and annotations to build the backend. It connects with databases to develop a URL shortener.
- Oct 2025Seed$6M
#3
Seed · London, England · founded 2020 · 10 employees$3Mraised▾
Developer of a self-hostable, open source CI/CD orchestrator for Terraform. It offers state management, pull request automation, and remote execution. The orchestrator also provides drift detection and centralised management. Policy as code is supported. The system is designed for fast and secure infrastructure orchestration. It allows concurrency for plans and apply jobs.
- Jun 2025Seed$3.6M
- 2021Seed$3M
#4
Series A · London, England · founded 2019 · 6 employees$2.6Mraised▾
Provider of platform for deploying applications, databases, and AI workloads. It offers tools for continuous integration and deployment, enabling users to build and release pipelines. The platform supports the deployment of inference, APIs, notebooks, and training models. It facilitates secure code execution and automates Kubernetes across various cloud environments. The platform provides features for managing environments, logs, metrics, and infrastructure as code.
- Nov 2024Series A$22.3M
- Jul 2020Seed$2.6M
#5
Seed · London, England · founded 2020$500Kraised▾
Platform offering cloud based IDE
- Jun 2025Seed$500K
#6
Series A · London, England · founded 2020 · 48 employees$31.5Mraised▾
Platform offering SaaS based utility price management platform. It is a cloud based platform for metering, pricing, and analytics for SaaS. It also provides pricing infrastructure and analytics solutions to power any variation of usage based pricing and drops it into the existing stack.
- Apr 2023Series A$14M
- Feb 2022Seed$17.5M
- Seed—
#7
Series A · London, England · founded 2015 · 37 employees$7.7Mraised▾
QualityClouds is a SaaS platform management tool providing solutions for code analysis and development governance. It scans the code and operational data of cloud-based low-code platforms and creates real-time dashboards that provide insights on technical debt management, release management, code comparison between releases, and user adoption. Notable clients include Veolia, HSBC, Merck, and Acciona. The product is offered on a subscription basis. Available for ServiceNow, Salesforce, and Office365.
- May 2022Series A$6.5M
- Apr 2020Seed$1.2M
#8
Deadpooled · London, England · founded 2013 · 13 employees$28.1Mraised▾
Smartpipe offers “Platform As A Service” to network operators such as mobile, WiFi to use and monetize their customer profiles for CRM or mobile advertising. Uses patented technology to extract, analyse and use customer data. Works with Ad-networks, Ad-exchanges and RTB platforms to provide a single source of quantified data and allows access to data that facilitates real time delivery of advertising and personalization.
- Nov 2016Series A$18.8M
- Dec 2015Series A$9.4M
#9
Acquired · London, England · founded 2021 · 1 employees$2.1Mraised▾
AI powered cloud infrastructure monitoring platform. It provides a platform for cloud native observability that integrates distributed traces, metrics, and logs. It provides a platform that automates the observability of serverless stack. It offers an AI copilot to debug and fix issues. Its features include notifications and alerts, bug tracking, integration with serverless stacks, and more.
- Jun 2023Grant (prize money)—
- Oct 2022Seed$138.6K
- Jul 2022Seed$1.8M
- Dec 2021Seed$158.9K
#10
Acquired · London, England · founded 2019 · 5 employees$5.1Mraised▾
Laminar is an enterprise-class video-streaming PAAS that can enable any content company to launch a full-featured, Netflix style/scale global video/OTT offering — in about a third of the time, and at about half the cost. At Laminar, we believe that global media infrastructure is going through a fundamental transformation with traditional modes of broadcast set to go the way of the telegraph. The future of media is streaming — and it is global in its scope and footprint. But, the enterprise-class software that caters to a media player serious about launching a Netflix-class global streaming service simply doesn’t exist — today every media company is struggling to become an engineering company
#11
Acqui-Hired · London, England · founded 2009 · 1 employees$10.5Mraised▾
It provides a software platform to telcos and cloud service providers which supports them in cloud orchestration and management. It enables quick provisioning of cloud servers. Through its application blueprints enables quick application migration, deployment in the cloud and its management. Its orchestration suite includes a fully integrated metering and billing engine that enables its clients to monetise their services. Recently launched a solution for application lifecycle management (ALM) across multiple-cloud environments. It acquired Backed by 60 high net worth investors, mostly through Leopard Rock Capital. Some of the major clients include BT, Oracle, Telecom Italia and Interxion. Was listed as a Gartner 'Cool Vendor' in 2013 and rated 'Exemplary' with the highest rating by Info-Tech Research Group. They have also acquired tapp.in a workload management company.
- Feb 2015Grant (prize money)$1.6M
- Jan 2015Grant (prize money)$1.6M
- Apr 2013Angel$5.7M
- Nov 2012Seed$4.8M
#12
Seed · London, England · founded 2012 · 4 employees$1.9Mraised▾
Cloud 66 allows developers to provision, deploy and manage Rails & Node apps. It determines what core elements are part of the application, and configures servers and sets up cloud instances that the application will require. It can manage firewall configurations, inspect log files, and identify security issues that affect servers. It also provides products for deploying and managing containers. Notable clients include SAP, Microsoft, and Dell.
- Sep 2014Seed$507.7K
- Jul 2014Seed$730K
- Jun 2014Seed$118K
- Seed$500K
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of PaaS coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
Common questions
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