58 Best Communications Startups in Uk to Watch in 2025

The Definitive Seedtable Ranking of Communications Startups in Uk

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 58 start-ups with an aggregate funding of $891.3m. The average funding per company in this subset is $15.4m.

Last update to the database: Feb 18, 2025. See changelog.

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5

Funding Rounds

$140.0m

Money raised

Omnispace offers hybrid connectivity solutions based on satellite and terrestrial networks for a variety of industries.

2

Funding Rounds

$8.0m

Money raised

Crypto Quantique is a company that specializes in quantum cyber security.

Key people:

4

Funding Rounds

$11.2m

Money raised

Post-Quantum is a company that is developing quantum-resistant encryption for protection against code-breaking quantum computers and quantum-resistant signature schemes for secure blockchain deployment.

4

Funding Rounds

A company focusing on artificial intelligence applied to video search.

3

Funding Rounds

$4.7m

Money raised

Crypta Labs is quantum security startup that is developing a quantum-based encryption chip and software to secure the Internet of Things. The company developed a Quantum Random Number Generator (QRNG) for mobile devices and an integrated security chip for others. The company is targeting transport, military and medical markets.

Key people:

1

Funding Rounds

$15.0m

Money raised

Converge is a UK-based company developing real-time concrete monitoring solutions founded in 2014 by Raphael Scheps.

Key people:

2

Funding Rounds

ArQit is working to provide the world's first global quantum encryption SaaS Business. They will use QKD technology to create unique keys that can be shared between two parties using laser transmissions from a satellite. The company is based in London, England and was founded in 2017.

3

Funding Rounds

$9.5m

Money raised

A company that participated in the W17 cohort of Y Combinator. It offers data-driven communication platform for bulk shipping, fleet and deal management for operators and brokers

Key people:

3

Funding Rounds

$5.3m

Money raised

Phrasee is a London-based developer of artificially intelligence copywriting tools for corporations and marketing teams.

5

Funding Rounds

$95.1m

Money raised

Attest is a company founded in 2015 by Jeremy King.

Key people:

6

Funding Rounds

$37.7m

Money raised

Eseye Limited is a telecommunication company based in Guildford, Surrey.

Key people:

5

Funding Rounds

$36.5m

Money raised

Adthena is a company founded in 2012 by Ian O’Rourke.

Key people:

4

Funding Rounds

$15.5m

Money raised

Artesian Solutions is a company founded in 2007 by Steve Borthwick, Andrew Yates and Mike Blackadder.

1

Funding Rounds

$5.2m

Money raised

DataSine is an artificial Intelligence / Machine Learning company founded in 2015 by Igor Volzhanin.

3

Funding Rounds

$80.3m

Money raised

YOOBIC provides a digital workplace for frontline teams.

6

Funding Rounds

$22.0m

Money raised

Abiquo is a company founded in 2006 by Diego Mariño.

1

Funding Rounds

$2.0m

Money raised

Developer of a commercial web-mail platform designed to offer messaging services to enterprises.

2

Funding Rounds

$5.1m

Money raised

Listing of items billable to a patient being treated at a hospital in the united states

3

Funding Rounds

$12.4m

Money raised

Pi Datametrics is a company founded in 2003.

2

Funding Rounds

SocialGO is a company founded in 2007 by Ross Crawford.

2

Funding Rounds

$1.3m

Money raised

Pilot Photonics is a company that provides photonic integrated circuit solutions .

Key people:

1

Funding Rounds

Arkessa Limited is a company founded in 2009 by Andrew Orrock.

Key people:

3

Funding Rounds

$5.8m

Money raised

Abundance Investment is a United Kingdom-based company founded in 2009 by Bruce Davis, Karl Harder and Louise Wilson.

2

Funding Rounds

$2.4m

Money raised

Audiense is a company founded in 2011 by Javier Burón.

3

Funding Rounds

$18.7m

Money raised

Neul is a United Kingdom-based company founded in 2010 by James Collier.

Location:

Key people:

1

Funding Rounds

$3.1m

Money raised

EngageSciences is a company founded by Richard Jones.

1

Funding Rounds

$40.0m

Money raised

StarLeaf is a Watford-based software and communications systems developer.

2

Funding Rounds

$8.8m

Money raised

Cambridge Communication Systems is a Cambridge, U.K.-based company developing computer networking hardware for deployment in urban wireless networks.

2

Funding Rounds

$1.4m

Money raised

A webinar, webcast, and virtual events provider headquartered in the U.K.

1

Funding Rounds

$15.5m

Money raised

LoopUp is a multinational cloud telephony provider founded in 2003 by Steve Flavell.

Key people:

1

Funding Rounds

$420.0k

Money raised

Stratium Limited is a manufacturer of quantum cascade lasers (QCLs).

1

Funding Rounds

$4.0m

Money raised

Exclusive Networks accelerate market entry and growth for innovative cybersecurity, networking and infrastructure technologies.

3

Funding Rounds

$19.1m

Money raised

Platform enabling media companies to increase their subscription revenue.

1

Funding Rounds

$1.5m

Money raised

2

Funding Rounds

$36.0m

Money raised

Notonthehighstreet is a United Kingdom-based company.

Location:

2

Funding Rounds

$17.0m

Money raised

Sweepr is a company founded in 2018 by Alan Coleman.

1

Funding Rounds

$3.5m

Money raised

RFI Global is a provider of testing, approval, and consultancy services to the global technology market.

Key people:

1

Funding Rounds

$981.0k

Money raised

Dynmark International is a dotdigital Engagement Cloud.

Key people:

1

Funding Rounds

$1.5m

Money raised

A smart automatic social network and messenger marketing platform allows you to create and promote content

1

Funding Rounds

$19.3k

Money raised

flux is a United Kingdom-based unified communications company founded in 2000 by Daniel Rieth.

1

Funding Rounds

Arkadin is a company founded in 2001.

1

Funding Rounds

$8.3m

Money raised

Coniq is a company founded in 2011.

1

Funding Rounds

$11.6m

Money raised

Ocean Outdoor is a company founded in 2007.

1

Funding Rounds

$30.0m

Money raised

smartFOCUS is a message Cloud Email, Mobile, & Social Marketing founded by Nick Heys.

1

Funding Rounds

$1.3m

Money raised

1

Funding Rounds

$325.0k

Money raised

YAi is an AI-driven content creation platform founded in 2023 by Yana Lapitskaya, Jessy Conflon and Vyacheslav Lukin.

1

Funding Rounds

$10.5m

Money raised

Provider of an enterprise voice processing system for the salesforce ecosystem.

Key people:

1

Funding Rounds

$2.0m

Money raised

Pockla is an AI-powered content strategy platform founded in 2021 by Hugo Bibby.

2

Funding Rounds

$9.7m

Money raised

Mtivity is a United Kingdom-based company.

1

Funding Rounds

$15.9m

Money raised

Pure360 is a United Kingdom-based company founded in 2001.

1

Funding Rounds

$3.5m

Money raised

AI-powered social media influencer marketing platform for brands.

1

Funding Rounds

$2.6m

Money raised

3

Funding Rounds

$629.6k

Money raised

Red Advertising is a United Kingdom-based company founded in 2018.

1

Funding Rounds

$1.1m

Money raised

EpiSensor is a United Kingdom-based company founded by Gary Carroll.

Location:

Key people:

2

Funding Rounds

$22.1m

Money raised

DeepCrawl is a United Kingdom-based company.

1

Funding Rounds

$77.0m

Money raised

CloudSense is a United Kingdom-based company.

1

Funding Rounds

$8.0m

Money raised

Audiens Limited is a United Kingdom-based company founded in 2015.

1

Funding Rounds

$191.9k

Money raised

GLOBALDRUM is a United Kingdom-based company.

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