London’s Best Open Source Companies – To Work For and Buy From

April 28, 2021

This article showcases our top picks for the best London based Open Source companies. These startups and companies are taking a variety of approaches to innovating the Open Source industry, but are all exceptional companies well worth a follow.

We tried to pick companies across the size spectrum from cutting edge startups to established brands.

We selected these startups and companies for exceptional performance in one of these categories:

  • Innovation
    • Innovative ideas
    • Innovative route to market
    • Innovative product
  • Growth
    • Exceptional growth
    • Exceptional growth strategy
  • Management
  • Societal impact

Top London Open Source Companies

Data sourced from Crunchbase and SemRush.

Aave

Aave

Crunchbase Website Twitter Facebook Linkedin

Aave is an open source non-custodial protocol on Ethereum for decentralized lending and borrowing.

Canonical

Canonical

Crunchbase Website Twitter Facebook Linkedin

Canonical is a computer software company that markets commercial support and related services for Ubuntu and related projects.

Ubuntu

Ubuntu

Crunchbase Website Twitter Facebook Linkedin

Ubuntu is a Debian-based open source Linux operating system for PC, tablet, phone, and cloud platforms.

Matrix

Matrix

Crunchbase Website Twitter Facebook Linkedin

Open Source, Interoperable IP Comms

Snowplow Analytics

Snowplow Analytics

Crunchbase Website Twitter Facebook Linkedin

Snowplow Analytics provides enterprise-strength digital analytics across multiple platforms

Seldon

Seldon

Crunchbase Website Twitter Facebook Linkedin

Machine Learning Deployment Platform

Parity Technologies

Parity Technologies

Crunchbase Website Twitter Facebook Linkedin

Parity aims to enable businesses and organisations to capitalize on blockchain technology and benefit from the new opportunities.

Lenses.io

Lenses.io

Crunchbase Website Twitter Facebook Linkedin

DataOps – A real-time applications and data operation portal

Aventus Network Systems

Aventus Network Systems

Crunchbase Website Twitter Facebook Linkedin

Aventus is a layer-2 blockchain protocol that brings scalability, lower costs, and speed to Ethereum transactions.

Pillar Project

Pillar Project

Crunchbase Website Twitter Facebook Linkedin

Platform to contextually manage your identity and transact with the services of the emerging web3 digital economy.

ChupaMobile

ChupaMobile

Crunchbase Website Twitter Facebook Linkedin

ChupaMobile is a marketplace where everybody can buy professional apps and games, ready to be customized and distributed on the App Stores.

Openplay

Openplay

Crunchbase Website Twitter Facebook Linkedin

OpenPlay is an online platform that allows any sports facility to take online bookings, payments and manage their customers.

Kryotech Ltd.

Kryotech Ltd.

Crunchbase Website Twitter Facebook Linkedin

Web and App Development

IRCCloud

IRCCloud

Crunchbase Website Twitter Facebook Linkedin

IRCCloud is a modern, always-connected IRC client that works on mobile and the web

Flooved

Flooved

Crunchbase Website Twitter Facebook Linkedin

Flooved is a provider of interactive social e-textbooks with personalized content for students and professors.

Mastodon C

Mastodon C

Crunchbase Website Twitter Facebook Linkedin

Offer the open source technology platform and the skills to help you realise that potential, and we do it all on zero carbon infrastructure.

Bacula

Bacula

Crunchbase Website Twitter Facebook Linkedin

Open source set of computer programs that permits the system administrator to manage backup, recovery, and verification.

ReportLab

ReportLab

Crunchbase Website Twitter Facebook Linkedin

Report Lab builds solutions to generate rich, attractive and fully bespoke PDF documents at incredible speeds.

Silicon

Silicon

Crunchbase Website Twitter Facebook Linkedin

Silicon UK, is the authoritative UK source for news, features and reviews of business technology.

Rabbit Technologies

Rabbit Technologies

Crunchbase Website Twitter Facebook Linkedin

Rabbit Technologies offers RabbitMQ which is open source message broker software implementing the advanced message queuing protocol (AMQP).

ROLUSTECH

ROLUSTECH

Crunchbase Website Twitter Facebook Linkedin

Official SugarCRM and Salesforce Partners providing expert development and consultancy services.

Easy Software Ltd.

Easy Software Ltd.

Crunchbase Website Twitter Facebook Linkedin

Easy Software is an open source company in the field of business software.

Pandastream

Pandastream

Crunchbase Website Twitter Facebook Linkedin

Pandastream is an open source video encoding solution.

Squiz UK

Squiz UK

Crunchbase Website Twitter Facebook Linkedin

Squiz is a global technology and strategy business that drives digital transformation for its customers.

eSynergy Solutions

eSynergy Solutions

Crunchbase Website Twitter Facebook Linkedin

eSynergy Solutions offers businesses with recruitment services for developers, programmers, and engineers.

Symbian Software Ltd.

Symbian Software Ltd.

Crunchbase Website Twitter Facebook Linkedin

Symbian develops the operating system used on Nokia, Motorola and Samsung mobile and smart phones.

CUBA.platform

CUBA.platform

Crunchbase Website Twitter Facebook Linkedin

CUBA.platform is a high-level open source Java framework for the rapid development of enterprise applications.

Caesar.Team

Caesar.Team

Crunchbase Website Twitter Facebook Linkedin

Caesar.Team is the open-source password and document manager for teams

Pharaoh Tools

Pharaoh Tools

Crunchbase Website Twitter Facebook Linkedin

Open source, PHP, full-stack DevOps tools

Ricston

Ricston

Crunchbase Website Twitter Facebook Linkedin

Services for Integration & Mobility

Open Classifieds

Open Classifieds

Crunchbase Website Twitter Facebook Linkedin

Create Amazing Classifieds Websites

CO:CUBED

CO:CUBED

Crunchbase Website Twitter Facebook Linkedin

CO:CUBED helps FTSE100 companies to embrace the startup revolution, by defining and executing their collaborative innovation capabilities.

Gephi

Gephi

Crunchbase Website Twitter Facebook Linkedin

Gephi is an open-source software for network visualization and analysis.

The Xen Project

The Xen Project

Crunchbase Website Twitter Facebook Linkedin

The Xen Project is an open-source virtualization platform that powers the world’s largest clouds in production.

AFKAR

AFKAR

Crunchbase Website Twitter Facebook Linkedin

An “Internet Of Things” Startup business.

Jaaz Portal

Jaaz Portal

Crunchbase Website Twitter Facebook Linkedin

Complete, out-of-box, automated web hosting solution licensed also as an Open Source.

Curverider

Curverider

Crunchbase Website Twitter Facebook Linkedin

Curverider develops socially-enabled software that allows organizations to increase knowledge-sharing and productivity.

Jobberbase

Jobberbase

Crunchbase Website Twitter Facebook Linkedin

Jobberbase is an open-source job board platform that enables the creation of job sites on the internet.

Blockware

Blockware

Crunchbase Website Twitter Facebook Linkedin

Software Reimagined

Open Source Living

Open Source Living

Crunchbase Website Twitter Facebook Linkedin

Open Source Living is an information and archive service for high quality Open Source software (OSS).

ApiAxle

ApiAxle

Crunchbase Website Twitter Facebook Linkedin

ApiAxle is a proxy software that manages network features and provides analytical data on network traffic.

Orchard

Orchard

Crunchbase Website Twitter Facebook Linkedin

Get a Docker host in the cloud, instantly.

Open-First

Open-First

Crunchbase Website Twitter Facebook Linkedin

Open-First specialize in helping companies of all sizes re-examine their communication, design, innovation, management and support.

SWCMS

SWCMS

Crunchbase Website Twitter Facebook Linkedin

SWCMS is an open source development team focused on creating a social news platform with similar functionality to the market leaders such

Vorari

Vorari

Crunchbase Website Twitter Facebook Linkedin

Open Source Cloud SaaS Solutions

You may write to us at: BestStartup.co.uk/Fupping Ltd, 349 Royal College Street, London, England, NW1 9QS.

Leave your vote

FREE: PROMOTE YOUR UK STARTUP

UK Startup Founders: We want to interview you.

If you are a founder, we want to interview you. Getting interviewed is a simple (and free) process.
PROMOTE MY STARTUP 
close-link

Log In

Forgot password?

Forgot password?

Enter your account data and we will send you a link to reset your password.

Your password reset link appears to be invalid or expired.

Log in

Privacy Policy

Add to Collection

No Collections

Here you'll find all collections you've created before.

Don't Miss

34 Top Lancashire Based Automotive Firms

This article showcases our top picks for the best Lancashire

United Kingdom’s 10 Most Impressive & Successful Presidents in the Machine Learning Space

At Best Startup UK we track over 130,000 UK startups