Best Communication Apps Companies in London, United Kingdom
The 59 best Communication Apps companies in London, United Kingdom in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Element.
Ranked: Best Communication Apps companies in London
| # | Company | App-install YoY | Disclosed funding | Employees | Founder | Tech stack | Stage | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Element Decentralized team messaging app for enterprises | +185% | $52M | 128 128 → 107 (-16%) | Matthew Hodgson Co-Founder | BootstrapAmazon Web ServicesAtlassian Statuspage+17 | Series B | — | — |
| 2 | SimpleX Developer of messaging application offering end-to-end encryption and open-source protocol | +141% | $1M | 3 | Evgeny Poberezkin Founder | VarnishTailwind CSSGitHub Pages+6 | Seed | 2 patents Electronic signage and display panel technologies for visual information presentation. | — |
| 3 | Cloud Sim Mobile application for international calling and messaging | +24% | — | — | Saran Sathiyadurai Founder & CEO | BootstrapGoogle Font APIMailgun+5 | Unfunded | — | — |
| 4 | NYOUM Online video calling platform | +11% | — | — | Jim Ellis-Reeves Chief Technology Officer | Co-Founder | — | Unfunded | — | — |
| 5 | Sphere Provider of group chat | — | $30M | 33 | — | — | Acquired | 3 patents Graphical user interface design and rendering tools for software applications | — |
| 6 | Mailchain Offering Web 3 solutions for messaging and email | — | $5M | 10 | — | WebflowZendeskreCAPTCHA+8 | Seed | — | — |
| 7 | Salsa Online messaging platform to connect with new people | — | $2M | 3 | Grace Wang Co-Founder & CTO | — | Seed | — | — |
| 8 | Chirp Sharing information through sound | — | $8M | 4 | — | — | Acquired | — | — |
| 9 | Wordeo Expressive messaging app | — | $4M | 11 | — | — | Deadpooled | 2 patents AI-driven text‑to‑video generation and media clip synthesis technology. | — |
| 10 | PingTune Music messaging app to share and discover music | — | $2M | 12 | — | — | Acqui-Hired | — | — |
| 11 | TextVibes Online platform offering messages back up tool | — | $262K | — | Federico Allegro Co-Founder | — | Deadpooled | — | — |
| 12 | Sup Sup is a free mobile app that helps to discover friends nearby. | — | $1M | — | Rich Pleeth Founder | — | Deadpooled | — | — |
| 13 | Lutebox Messaging and video chat apps developer | — | $430K | 5 | Ali Ahmed Founder & CEO | — | Deadpooled | 7 patents Social networking platforms enabling streamlined content sharing via mobile communication protocols | — |
| 14 | Wavedeck Video Walkie-Talkie | — | $400K | — | Jake Levant Founder | — | Deadpooled | — | — |
Top 12 Communication Apps companies in London
#1
Seed · London, England · founded 2021 · 3 employees$1.3Mraised▾
Developer of messaging application offering end-to-end encryption and open-source protocol. The application facilitates private and secure communication without requiring user identification. It supports features such as secret groups, chat profiles, and audio/video calls. The application aims to provide users with control over their identity, contacts, and communities.
- Aug 2024Seed$1.3M
- 2023Seed—
#2
Series B · London, England · founded 2016 · 128 employees$52.3Mraised▾
Decentralized team messaging app for enterprises. Its app also allows users to share photos and files and provides end to end messaging solutions for enterprises. Its mobile app is available for both iOS and Android devices and a web app for Windows and macOS. It allows users to communicate securely and collaborate in real time, making it suitable for businesses and organizations that prioritize data sovereignty and security.
- Jul 2021Series B$30M
- Apr 2020Series A$4.6M
- Sep 2019Series A$8.5M
- Jan 2018Seed$5M
#3
Acquired · London, England · founded 2015 · 33 employees$30Mraised▾
Provider of group chat. Provider of sphere group chat includes the ability to create multiple chats for a single group.
- Apr 2020Seed$2.9M
- May 2019Seed$886K
- Oct 2018Seed$422K
- Jun 2017Seed$14.9M
#4
Seed · London, England · founded 2019 · 10 employees$4.6Mraised▾
Offering Web 3 solutions for messaging and email. They want to become the email and messaging standard for Web3. It is both an open source protocol and a web based application. Security features they offer are encryption, private keys, storage and identities.
- Sep 2022Seed$4.6M
#5
Seed · London, England · founded 2022 · 3 employees$2Mraised▾
Online messaging platform to connect with new people. Its platform allows users to discover and connect with new people over text messages. Its mobile app is available for iOS and Android devices.
- Feb 2023Seed$2M
#6
Acquired · London, England · founded 2011 · 4 employees$8Mraised▾
Chirp is a messaging application that allows users to share photos, web pages, and contacts using sound. The app uses special electronic birdsong to ‘chirp’ information over the air to transfer information. It can quickly send data to multiple devices at once without them needing to be either paired or have a wireless connection. Chirp technology provides iOS and Android supported SDK for developers.
- Jan 2017Series A$1.6M
- Aug 2016Series A$2.3M
- Feb 2016Seed$342.2K
- Jun 2015Seed$1.1M
#7
Deadpooled · London, England · founded 2012 · 11 employees$3.7Mraised▾
Wordeo is a video messaging app that brings words to life. Users type a message and Wordeo automatically matches video clips to each of their words. Users can also mix up Wordeo's clips with pictures, videos and music from their phone. Send videos to friends by Wordeo, text, email, Facebook, Twitter or Instagram. Founded in 2012 & based out of London.
#8
Acqui-Hired · London, England · founded 2013 · 12 employees$1.6Mraised▾
PingTune is a music messaging app that lets users find and share music and helps connect music creators with music lovers. Artists can use the platform to connect with fans, provide them exclusive access to their work and create virality. Music lovers can ask other people for music recommendations and explore new music. The company got acquired by erosplc.com in Oct'15.
- Dec 2013Seed$1.6M
#9
Deadpooled · London, England · founded 2019$262.2Kraised▾
Online platform offering messages back up tool. Its platform allows users to import their messages from WhatsApp, Facebook, and Instagram chat. It also allows users to turn their messages into memories and create a memory diary. Its mobile app is available for iOS and Android devices.
- Jul 2021Seed$262.2K
#10
Deadpooled · London, England · founded 2015$1.1Mraised▾
Sup is a free hyperlocal mobile app that makes chance encounters and serendipitous moments with friends happen more often. It helps to find, interact and stay in touch with friends. Working within a 2000m range, the app notifies when friends are around and helps to see friends location and say hello.
- Sep 2015Seed$1.1M
#11
Deadpooled · London, England · founded 2011 · 5 employees$430Kraised▾
Lutebox is technology startup that develops messaging and video chat apps, which includes Lutebox, Click, Simulcast, Shoptalk. Lute box is a photo note taking app which lets users to capture moments and record voice messages alongside the messages. This was incubated by Oasis500 incubator. Lutebox is backed by WE ARE VENTURES and few other angel investors.
- Jun 2012Seed$430K
#12
Deadpooled · London, England · founded 2012$400Kraised▾
WaveDeck is a free video walkie-talkie app that lets users share short video messages with other Wavedeck user. Supports Online realtime and offline modes. Users can replay and watch videos whenever they want.
- Aug 2012Seed$400K
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Communication Apps coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
Common questions
Sweetie watches where the money and the users are piling in. She covers sector wealth and momentum — the install curves and revenue pools that show which corners of the market are quietly on fire.