69 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 188 start-ups with an aggregate funding of $9.9b. The average funding per company in this subset is $143.5m.

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

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6

Funding Rounds

$157.0m

Money raised

Data.ai, formerly known as App Annie, is a unified data and artificial intelligence (AI) company that combines consumer and market data to provide AI-powered insights into mobile app market data.

2

Funding Rounds

$12.1m

Money raised

Sky and Space Global is an Australian nanosatellite company focused on IoT networks.

Location:

Key people:

2

Funding Rounds

$8.8m

Money raised

Parallel Wireless provides cellular radio access network solutions.

Key people:

5

Funding Rounds

$60.2m

Money raised

U.S-based 3D media technology company providing worldwide end-to-end virtual media solutions.

9

Funding Rounds

$364.0m

Money raised

Altiostar Networks is a company that provides 4G and 5G open vRAN software in a B2B model.

9

Funding Rounds

$374.3m

Money raised

Lattice is a people workforce management platform for goal management, weekly check-ins, and performance reviews.

Location:

Key people:

7

Funding Rounds

$218.1m

Money raised

SendBird is a developer of a messaging API for mobile applications and websites.

3

Funding Rounds

$2.8m

Money raised

First Orion is a Little Rock, Arkansas-based software company offering identity verification for telecommunication companies and protection from scam calls.

Key people:

8

Funding Rounds

$488.0m

Money raised

Outreach is a sales engagement platform that uses artificial intelligence (AI) for predictive analytics as it relates to sales.

8

Funding Rounds

$644.9m

Money raised

Highspot provides a sales enablement platform that increases the success of sales teams across many industries.

Industries:

Location:

Key people:

5

Funding Rounds

$109.4m

Money raised

Peak AI is a Manchester, UK-based company that has developed an AI system to provide data analysis for sales, marketing, planning, and supply chain management.

5

Funding Rounds

$140.0m

Money raised

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

4

Funding Rounds

$504.6m

Money raised

Infobip is a service provider for cloud-based mobile services.

2

Funding Rounds

$8.0m

Money raised

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

Key people:

3

Funding Rounds

$107.0m

Money raised

Drift is a software company offering a conversational marketing platform founded in 2015 by David Cancel.

10

Funding Rounds

$1.3b

Money raised

Mirakl is a Paris, France-based company offering software solutions for e-commerce marketplace companies.

Location:

Key people:

8

Funding Rounds

$16.0m

Money raised

Procarta Biosystems is a company that is developing antibacterial therapeutics for drug-resistant bacterial infections.

6

Funding Rounds

$16.4m

Money raised

Threedium creates brand experiences, drives product considerations, and delivers conversions through 3D/augmented reality technology.

1

Funding Rounds

$5.0m

Money raised

VYZYO is a London-based provider of platforms and technologies for enabling and operating digital payment and mobile financial services for peer-to-peer and peer-to-business financial and messaging transactions.

Location:

Key people:

2

Funding Rounds

$2.6m

Money raised

Kleos Space is a company that provides geo-locational intelligence data services

Location:

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.

2

Funding Rounds

$350.0k

Money raised

Niftyz (formerly known as Digital Oracles) is a performance monitoring and analytics platform evaluating the operational and commercial efficacy of companies.

Location:

Key people:

4

Funding Rounds

A company focusing on artificial intelligence applied to video search.

5

Funding Rounds

$383.0m

Money raised

OpenWeb, previously known as Spot.IM, is a conversation platform intended for publishers to start meaningful user discussions.

9

Funding Rounds

$777.1m

Money raised

Insider is an AI-driven omnichannel and customer engagement platform founded in 2012 by Hande Cilingir.

Location:

Key people:

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:

6

Funding Rounds

$21.7m

Money raised

A company offering digital transformation and compliance services for firms offering financial services.

8

Funding Rounds

$373.3m

Money raised

Quantexa is a company that enables institutions to make better decisions using their data.

Location:

Key people:

1

Funding Rounds

$4.4m

Money raised

Company developing optical communications hardware for strong digital encryption.

Location:

Key people:

1

Funding Rounds

A company with a feedback platform for businesses in Europe. It was founded in 2012 and has locations in France and England.

3

Funding Rounds

$34.7m

Money raised

SenSat is a company providing data ingestion and data-based simulations to visualize and track infrastructure projects.

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.

7

Funding Rounds

$93.6m

Money raised

WeGift is a smart solution for distributing gift cards at scale. They stand out for providing access to 700+ brands, bulk discounts of up to 25% off, and the ability to reclaim unspent value on expired gift cards.

Location:

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.

5

Funding Rounds

$201.1m

Money raised

Cognism is a B2B sales acceleration software company that provides a marketing and sales acceleration solution.

4

Funding Rounds

$47.2m

Money raised

Black Swan's SaaS solution uses data analytics to allow brands to more accurately predict future consumer trends.

Location:

Key people:

1

Funding Rounds

$112.0m

Money raised

Platform that transforms complex data into intelligent operational solutions.

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

1

Funding Rounds

Esendex is an international mobile communications provider with customers in the United Kingdom, Ireland, France, Spain, Australia, the United States, and DACH territories.

Location:

Key people:

1

Funding Rounds

$784.0k

Money raised

British company serving the defence, security, transport and energy industries

2

Funding Rounds

$33.5m

Money raised

Platform for recording, transcribing, and analyzing calls and meetings in real-time to capture important data points.

5

Funding Rounds

$72.0m

Money raised

Kaiam Corporation develops and manufactures photonic integrated circuits, optical transceivers and other optoelectronic equipment.

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

$42.5m

Money raised

Intelligent maintenance management platform.

Location:

Key people:

4

Funding Rounds

$140.3m

Money raised

Software offering autonomous speech and voice recognition for live and recorded media.

2

Funding Rounds

$457.0m

Money raised

Netomnia Limited is a full-fibre network expansion driven by strategic investments founded in 2019.

5

Funding Rounds

$376.8m

Money raised

Pollinate is a cloud-based platform focused on merchant-acquiring for banks founded in 2017 by Alastair Lukies, Tim Joslyn, Jonathan Hughes and Fiona Roach Canning.

4

Funding Rounds

$896.4m

Money raised

Hopin is a online events platform where people can create engaging online events that connect people around the globe.

5

Funding Rounds

$95.1m

Money raised

Attest is a company founded in 2015 by Jeremy King.

4

Funding Rounds

$98.5m

Money raised

BlueJeans Network is a Mountain View, California-based company founded in 2009 by Krish Ramakrishnan.

6

Funding Rounds

$37.7m

Money raised

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

Key people:

5

Funding Rounds

$7.0m

Money raised

Zeetta Networks simplifies the monitoring, management and automation of complex ICT networks

5

Funding Rounds

$159.0m

Money raised

Digital infrastructure layer platform to build realtime API tools.

5

Funding Rounds

$36.5m

Money raised

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

4

Funding Rounds

$15.5m

Money raised

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

2

Funding Rounds

$10.1m

Money raised

Antavo is a loyalty Management Platform for Fashion and Retail founded in 2012 by Andras Bencsik, Zsuzsa Kecsmar, Attila Kecsmar and Gábor Csarnai.

Location:

Key people:

5

Funding Rounds

$88.6m

Money raised

Customer data and marketing platform helps retailers increase CRM revenue with personalized messages.

1

Funding Rounds

$5.2m

Money raised

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

5

Funding Rounds

$165.1m

Money raised

InfoSum provides a decentralized platform designed to remove the trust barriers between progress and privacy.

Location:

Key people:

2

Funding Rounds

$92.5m

Money raised

Platform offering buy now, pay later solutions for e-commerce and B2B merchants.

Location:

Key people:

3

Funding Rounds

$15.5m

Money raised

Muso is a London-based cybersecurity company providing solutions for enterprises.

3

Funding Rounds

$57.0m

Money raised

Mention Me is a London-based company founded in 2013 by Andy Cockburn.

4

Funding Rounds

$27.6m

Money raised

Pqshield Limited is an Oxford-based cryptography company using their cryptographic knowledge to develop cybersecurity solutions.

Location:

Key people:

3

Funding Rounds

$80.3m

Money raised

YOOBIC provides a digital workplace for frontline teams.

1

Funding Rounds

$8.0m

Money raised

OpenSignal is a company that specializes in wireless coverage mapping founded in 2010 by Sina Khanifar, Sam Westwood, Brendan Gill and James Robinson.

Location:

Key people:

8

Funding Rounds

$134.6m

Money raised

floLIVE is a London-based provider of secure and cloud-native connectivity solutions for enterprises and mobile telecommunication operators.

7

Funding Rounds

$49.6m

Money raised

Ziflow is a software as a service company.

1

Funding Rounds

$3.0m

Money raised

PeerIndex is a London-based company founded in 2009.

6

Funding Rounds

$22.0m

Money raised

Abiquo is a company founded in 2006 by Diego Mariño.

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