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Telecoms startups in London

26 telecoms startups in London have raised money in rounds we track. These are the 26 that have raised the most, $3.3B between them.

$3.3Braised by these 26
26on our record in all
EXA Infrastructureraised the most
  1. 1EXA InfrastructureEXA Infrastructure is the largest dedicated digital infrastructure platform in Europe, linking North America and Asia via the Middle East.

    EXA Infrastructure is the largest dedicated digital infrastructure platform in Europe, linking North America and Asia via the Middle East.

    Founded 2021London, United Kingdom$1.5Blast round Oct 2025
  2. 2NetomniaNetomnia is a full-fibre network company.

    Netomnia is a full-fibre network company.

    Founded 2019London, United Kingdom$607Mlast round Apr 2026
  3. 3Community FibreCommunity Fibre is a broadband company that exclusively serves London's residents and businesses.

    Community Fibre is a broadband company that exclusively serves London's residents and businesses.

    Founded 2013London, United Kingdom$519Mlast round Dec 2025
  4. 4SynthesiaSynthesia is a British multinational AI company based in London, founded in 2017.

    Synthesia is a British multinational AI company based in London, founded in 2017.

    Founded 2017London, United Kingdom$506Mlast round Jan 2026
  5. 5Symbian FoundationSymbian Foundation was a non-profit organization dedicated to the Symbian mobile operating system.

    Symbian Foundation was a non-profit organization dedicated to the Symbian mobile operating system.

    Founded 2009London, United Kingdom$60Mlast round Nov 2010
  6. 6MuzicallMuzicall is a ringback tone service provider for operators and media companies.

    Muzicall is a ringback tone service provider for operators and media companies.

    Founded 2004London, United Kingdom$16Mlast round Feb 2010
  7. 7PacketExchangeGlobal network services provider

    Global network services provider

    Founded 2001London, United Kingdom$15Mlast round Jul 2008
  8. 8Peanut AppPeanut App is a social networking platform designed to connect women through all stages of motherhood.

    Peanut App is a social networking platform designed to connect women through all stages of motherhood.

    Founded 2016London, United Kingdom$14Mlast round Apr 2025
  9. 9ConnectdConnectd is a London-based fintech and media information services platform that connects early-stage startups, scale-ups, and investors with fractional executiv

    Connectd is a London-based fintech and media information services platform that connects early-stage startups, scale-ups, and investors with fractional executiv

    Founded 2019London, United Kingdom$10Mlast round Jul 2025
  10. 10SednaSedna is a data-driven communication platform that pushes profitability.

    Sedna is a data-driven communication platform that pushes profitability.

    Founded 2017London, United Kingdom$10Mlast round Apr 2025
  11. 11Telecel Global ServicesTelecel Global Services is a telecommunication company based in London.

    Telecel Global Services is a telecommunication company based in London.

    Founded 2017London, United Kingdom$10Mlast round Jul 2025
  12. 12AvealtoAvealto is a UK-based telecommunications infrastructure company that specializes in high-altitude wireless platforms (WIP/HAPS).

    Avealto is a UK-based telecommunications infrastructure company that specializes in high-altitude wireless platforms (WIP/HAPS).

    Founded 2013London, United Kingdom$9.3Mlast round Dec 2025
  13. 13Lucida AILucida AI is a technology company that specializes in artificial intelligence solutions for language learning and professional communication.

    Lucida AI is a technology company that specializes in artificial intelligence solutions for language learning and professional communication.

    Founded 2024London, United Kingdom$7.8Mlast round Jun 2026
  14. 14PlayJamPlayJam is a bespoke software development company that creates tailored software solutions for both startups and established businesses.

    PlayJam is a bespoke software development company that creates tailored software solutions for both startups and established businesses.

    Founded 1999London, United Kingdom$5.0Mlast round Oct 2011
  15. 15SlashworkSlashwork is a London-based software startup focused on enhancing workplace communication through its AI-driven platform.

    Slashwork is a London-based software startup focused on enhancing workplace communication through its AI-driven platform.

    Founded 2025London, United Kingdom$3.5Mlast round Feb 2026
  16. 16AirSense WirelessAirSense Wireless Limited was a UK-based company that specialized in software development for Wi-Fi and cellular network interoperability.

    AirSense Wireless Limited was a UK-based company that specialized in software development for Wi-Fi and cellular network interoperability.

    Founded 2010London, United Kingdom$2.5Mlast round Sept 2011
  17. 17LM TechnologiesLM Technologies Ltd, Design & Manufacture of Wireless Technology for Industry.

    LM Technologies Ltd, Design & Manufacture of Wireless Technology for Industry.

    Founded 2004London, United Kingdom$1.4Mlast round Apr 2022
  18. 18rocketphone.aiRocketPhone.ai is a London-based AI-powered conversation processing platform designed for businesses using Salesforce.

    RocketPhone.ai is a London-based AI-powered conversation processing platform designed for businesses using Salesforce.

    Founded 2015London, United Kingdom$1.1Mlast round Aug 2021
  19. 19AnonymisedAnonymised is a SaaS platform that enables marketers to reach audiences in a privacy-preserving way using only anonymous data.

    Anonymised is a SaaS platform that enables marketers to reach audiences in a privacy-preserving way using only anonymous data.

    Founded 2019London, United Kingdom$1.0Mlast round Apr 2023
  20. 20ZIM ConnectionsZIM Connections is a London-based telecommunications firm established in 2020.

    ZIM Connections is a London-based telecommunications firm established in 2020.

    Founded 2020London, United Kingdom$790Klast round Oct 2023
  21. 21Klink LabsKlink Labs is a global performance-based rewarded marketing network founded in July 2022.

    Klink Labs is a global performance-based rewarded marketing network founded in July 2022.

    Founded 2023London, United Kingdom$675Klast round Feb 2025
  22. 22KasookooKasookoo is a cloud communications and business phone system company that offers a software-based alternative to traditional office telephony.

    Kasookoo is a cloud communications and business phone system company that offers a software-based alternative to traditional office telephony.

    Founded 2018London, United Kingdom$500Klast round Nov 2021
  23. 23SliideSliide is a London-based mobile technology company founded in 2013.

    Sliide is a London-based mobile technology company founded in 2013.

    Founded 2013London, United Kingdom$495Klast round Feb 2015
  24. 24VorbossVorboss believe that these crucial decisions should be made with a technical expert, rather than someone driven by margins.

    Vorboss believe that these crucial decisions should be made with a technical expert, rather than someone driven by margins.

    Founded 2006London, United Kingdom$328Klast round Dec 2022
  25. 25BondioBondio is a telecommunications and connectivity company based in London, specializing in the eSIM market.

    Bondio is a telecommunications and connectivity company based in London, specializing in the eSIM market.

    Founded 2023London, United Kingdom$191Klast round Nov 2023
  26. 26NextUpThe home of stand-up, showcasing all the wonders of live comedy worldwide.

    The home of stand-up, showcasing all the wonders of live comedy worldwide.

    Founded 2016London, United Kingdom$62Klast round Jun 2023
Total fundinghow the list is ranked
15 November 2026updated nightly
Rounds we tracksource: Millionrounds

Companies whose funding rounds we classed in this sector, ranked by the total they have raised in rounds we hold. Nobody pays to be on a list.

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