Top list · United Kingdom

Telecom startups in the United Kingdom

81 telecom startups in the United Kingdom have raised money in rounds we track. These are the 50 that have raised the most, $5.5B between them, with London the most common home.

$5.5Braised by these 50
81on our record in all
Londonmost common home
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. 2Open CosmosOpen Cosmos is a UK-based space technology company that specializes in end-to-end satellite mission services.

    Open Cosmos is a UK-based space technology company that specializes in end-to-end satellite mission services.

    Founded 2015Didcot, United Kingdom$737Mlast round Oct 2026
  3. 3NetomniaNetomnia is a full-fibre network company.

    Netomnia is a full-fibre network company.

    Founded 2019London, United Kingdom$607Mlast round Apr 2026
  4. 4Community 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
  5. 5SynthesiaSynthesia 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
  6. 6Quickline CommunicationsQuickline Communications provides broadband services to business, public sector, and residential customers through its wireless networks.

    Quickline Communications provides broadband services to business, public sector, and residential customers through its wireless networks.

    Founded 2004Hull, United Kingdom$187Mlast round Jul 2024
  7. 7Salience LabsSalience Labs is a deep-tech semiconductor company based in Oxford, United Kingdom, specializing in all-optical silicon photonic solutions.

    Salience Labs is a deep-tech semiconductor company based in Oxford, United Kingdom, specializing in all-optical silicon photonic solutions.

    Founded 2020Oxford, United Kingdom$169Mlast round Oct 2026
  8. 8OnecomOnecom is an independent business telecommunications provider delivering fixed line, mobile and connectivity solutions.

    Onecom is an independent business telecommunications provider delivering fixed line, mobile and connectivity solutions.

    Founded 2002Fareham, United Kingdom$124Mlast round Jul 2019
  9. 9MbloxmBlox offers mobile marketing and engagement solutions that help brands reach customers via SMS campaigns and push notifications.

    mBlox offers mobile marketing and engagement solutions that help brands reach customers via SMS campaigns and push notifications.

    Founded 1999Campbell, United Kingdom$122Mlast round Jul 2014
  10. 10Nu QuantumNu Quantum is a quantum technology company founded in 2018 as a spin-out from the University of Cambridge's Cavendish Laboratory.

    Nu Quantum is a quantum technology company founded in 2018 as a spin-out from the University of Cambridge's Cavendish Laboratory.

    Founded 2018Cambridge, United Kingdom$106Mlast round Dec 2025
  11. 11ALL.SPACEALL.SPACE has developed the 5th generation smart terminal, capable of linking with all satellites, all networks, in all orbits, all at once.

    ALL.SPACE has developed the 5th generation smart terminal, capable of linking with all satellites, all networks, in all orbits, all at once.

    Founded 2013Reading, United Kingdom$102Mlast round Oct 2024
  12. 12AFRICA MOBILE NETWORKSAfrica Mobile Networks is finances, builds, and operates mobile network base stations in Sub-Saharan Africa region.

    Africa Mobile Networks is finances, builds, and operates mobile network base stations in Sub-Saharan Africa region.

    Founded 2013Milton Keynes, United Kingdom$91Mlast round Mar 2023
  13. 13UbiquisysUbiquisys is a developer of multimode LTE, 3G and Wi-Fi small cells for mobile operators and consumers.

    Ubiquisys is a developer of multimode LTE, 3G and Wi-Fi small cells for mobile operators and consumers.

    Founded 2004Swindon, United Kingdom$81Mlast round Aug 2012
  14. 14Cambridge Broadband NetworksCambridge Broadband designs wireless back-haul and access provisions that improve telecommunication network capacity and efficiency.

    Cambridge Broadband designs wireless back-haul and access provisions that improve telecommunication network capacity and efficiency.

    Founded 2000Cambridge, United Kingdom$63Mlast round Feb 2012
  15. 15Symbian 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
  16. 16Lightning FibreLightning Fibre is a community minded Full Fibre network.

    Lightning Fibre is a community minded Full Fibre network.

    Founded 2018United Kingdom$50Mlast round Dec 2023
  17. 17VelocixVelocix offers Digital Media Delivery Platforms, a CDN infrastructure solution for network service providers.

    Velocix offers Digital Media Delivery Platforms, a CDN infrastructure solution for network service providers.

    Founded 2002Cambridge, United Kingdom$45Mlast round Jan 2008
  18. 184th Utility4th Utility offers broadband ISP supplying ultrafast connectivity to homes and businesses across the UK via our own fibre optic network.

    4th Utility offers broadband ISP supplying ultrafast connectivity to homes and businesses across the UK via our own fibre optic network.

    Founded 2017United Kingdom$40Mlast round Jan 2024
  19. 19StarLeafStarLeaf was a UK-based provider of cloud-based video conferencing and collaboration software, founded in 2008 in Cambridge.

    StarLeaf was a UK-based provider of cloud-based video conferencing and collaboration software, founded in 2008 in Cambridge.

    Founded 2008Watford, United Kingdom$40Mlast round Sept 2021
  20. 20AntenovaAntenova is a technology company that specializes in designing, developing, and manufacturing high-performance integrated antennas and RF antenna modules.

    Antenova is a technology company that specializes in designing, developing, and manufacturing high-performance integrated antennas and RF antenna modules.

    Founded 1999Waterlooville, United Kingdom$29Mlast round Oct 2008
  21. 21Narwhal LabsNarwhal Labs.

    Narwhal Labs.

    Founded 2021Bristol, United Kingdom$27Mlast round Apr 2026
  22. 22Sofant TechnologiesSofant Technologies offers Smart Antenna and tunable RF solutions for next generation mobile and wearable devices.

    Sofant Technologies offers Smart Antenna and tunable RF solutions for next generation mobile and wearable devices.

    Founded 2011Edinburgh, United Kingdom$23Mlast round Apr 2026
  23. 23ZinwaveZinwave provides the indoor cellular and public safety coverage that businesses need in a five-component, fiber-based solution that’s easy and affordable to install.

    Zinwave provides the indoor cellular and public safety coverage that businesses need in a five-component, fiber-based solution that’s easy and affordable to install.

    Founded 2002Cambridge, United Kingdom$21Mlast round Mar 2010
  24. 24NeulNeul develops wireless network technology to enable the use of TV white space spectrum.

    Neul develops wireless network technology to enable the use of TV white space spectrum.

    Founded 2010Cambridge, United Kingdom$19Mlast round Nov 2012
  25. 25Archangel LightworksArchangel Lightworks is a private aerospace and communications company based in Oxford, UK, founded in 2017.

    Archangel Lightworks is a private aerospace and communications company based in Oxford, UK, founded in 2017.

    Founded 2017Oxford, United Kingdom$17Mlast round Aug 2026
  26. 26MuzicallMuzicall 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
  27. 27PacketExchangeGlobal network services provider

    Global network services provider

    Founded 2001London, United Kingdom$15Mlast round Jul 2008
  28. 28Peanut 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
  29. 29EseyeEseye, founded in 2007, specializes in end-to-end integrated IoT cellular connectivity solutions.

    Eseye, founded in 2007, specializes in end-to-end integrated IoT cellular connectivity solutions.

    Founded 2007Guildford, United Kingdom$14Mlast round Sept 2023
  30. 30Social+Empresa digital diseñada para dar a conocer y promover personas, empresas, productos, y/o servicios, en las diferentes redes sociales.

    Empresa digital diseñada para dar a conocer y promover personas, empresas, productos, y/o servicios, en las diferentes redes sociales.

    Founded 2013San Salvador, United Kingdom$12Mlast round Jun 2024
  31. 31Mono ConsultantsMono Consultants provides infrastructure support services to the telecommunications industry.

    Mono Consultants provides infrastructure support services to the telecommunications industry.

    Founded 1997United Kingdom$11Mlast round Feb 2014
  32. 32ConnectdConnectd 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
  33. 33SednaSedna 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
  34. 34Telecel 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
  35. 35AvealtoAvealto 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
  36. 36Microcosm CommunicationsMicrocosm Communications is a manufacturer of chips for comms equipment.

    Microcosm Communications is a manufacturer of chips for comms equipment.

    Founded 1996United Kingdom$8.5Mlast round Jul 1999
  37. 37IX WirelessIX Wireless operates their core network using national dark fiber that is lit up with DWDM technology.

    IX Wireless operates their core network using national dark fiber that is lit up with DWDM technology.

    Founded 2017United Kingdom$8.2Mlast round Jun 2022
  38. 38Lucida 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
  39. 39Citel TechnologiesCitel Technologies is a telecommunications company that specializes in Voice over IP (VoIP) migration solutions and converged communications platforms.

    Citel Technologies is a telecommunications company that specializes in Voice over IP (VoIP) migration solutions and converged communications platforms.

    Founded 1996Amherst, United Kingdom$7.0Mlast round Sept 2004
  40. 40Orthogon SystemsOrthogon Systems manufactures highly available, highly reliable wireless Ethernet bridges that provide point-to-point broadband connections.

    Orthogon Systems manufactures highly available, highly reliable wireless Ethernet bridges that provide point-to-point broadband connections.

    Founded 1999United Kingdom$7.0Mlast round Jun 2003
  41. 41LumenisityLumenisity is developing advanced cable solutions to address the need for massive bandwidth increases in high capacity system.

    Lumenisity is developing advanced cable solutions to address the need for massive bandwidth increases in high capacity system.

    Founded 2016Romsey, United Kingdom$6.9Mlast round Jul 2021
  42. 42CS NetworksCS Networks is a telecommunications company based in Belgrade, Serbia, specializing in B2B services.

    CS Networks is a telecommunications company based in Belgrade, Serbia, specializing in B2B services.

    Founded 2010Belgrade, United Kingdom$6.6Mlast round Feb 2013
  43. 43Limitless TechnologyLimitless Technology allows improved tracking of not only spending but includes document repository, inventory management, dashboards.

    Limitless Technology allows improved tracking of not only spending but includes document repository, inventory management, dashboards.

    Founded 2006Lake Mary, United Kingdom$6.5Mlast round Apr 2019
  44. 44Bullitt GroupBullitt Group offers go-to-market solutions for brands that wish to extend into mobile or audio products.

    Bullitt Group offers go-to-market solutions for brands that wish to extend into mobile or audio products.

    Founded 2009United Kingdom$5.4Mlast round Feb 2013
  45. 45Honest MobileHonest Mobile provides mobile data network services by providing appropriate control and better notifications.

    Honest Mobile provides mobile data network services by providing appropriate control and better notifications.

    Founded 2019Grantham, United Kingdom$5.3Mlast round Apr 2025
  46. 46PlayJamPlayJam 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
  47. 47SarantelGPS Antennas, Bluetooth & Wlan, Mobile Phone Antennas.

    GPS Antennas, Bluetooth & Wlan, Mobile Phone Antennas.

    Founded 2000Woodinville, United Kingdom$4.9Mlast round Feb 2003
  48. 48CSL DualComCSL DualCom, based in the UK, provides dual signaling alarm systems and other security installations.

    CSL DualCom, based in the UK, provides dual signaling alarm systems and other security installations.

    Founded 1996United Kingdom$3.7Mlast round Mar 2011
  49. 49SlashworkSlashwork 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
  50. 50VeowareVeoware provides Space satellite imagery services.

    Veoware provides Space satellite imagery services.

    Founded 2016Guilford, United Kingdom$3.4Mlast round Sept 2024
Total fundinghow the list is ranked
15 November 2026updated nightly
Rounds we tracksource: Millionrounds

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

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