Top list · United States

Telecom startups in the United States

494 telecom startups in the United States have raised money in rounds we track. These are the 50 that have raised the most, $19B between them, with San Jose the most common home.

$19Braised by these 50
494on our record in all
San Josemost common home
Optimum Communicationsraised the most
  1. 1Optimum CommunicationsOptimum is dedicated to becoming the preferred connectivity provider in every community

    Optimum is dedicated to becoming the preferred connectivity provider in every community

    Founded -Bethpage, United States$2.0Blast round Nov 2025
  2. 2LumentumLumentum Operations is an optical and photonic products manufacturer.

    Lumentum Operations is an optical and photonic products manufacturer.

    Founded 2015Milpitas, United States$2.0Blast round Mar 2026
  3. 3CesiumAstroCesiumAstro is an aerospace and defense startup based in Austin, Texas, founded in 2017.

    CesiumAstro is an aerospace and defense startup based in Austin, Texas, founded in 2017.

    Founded 2017Austin, United States$1.8Blast round Nov 2026
  4. 4AstranisAstranis designs, builds, and operates the world’s most advanced high orbit satellites for sovereign connectivity.

    Astranis designs, builds, and operates the world’s most advanced high orbit satellites for sovereign connectivity.

    Founded -United States$1.2Blast round Sept 2026
  5. 5SlackScreenhero lets users screen share any application with anyone, no matter where they are.

    Screenhero lets users screen share any application with anyone, no matter where they are.

    Founded 2013Mountain View, United States$1.2Blast round Aug 2018
  6. 6HyperSatHyperSat is a developer of hyperspectral imaging satellites.

    HyperSat is a developer of hyperspectral imaging satellites.

    Founded -United States$935Mlast round Sept 2018
  7. 7LumilensLumilens addresses the red hot market for AI data center infrastructure by designing, manufacturing and selling photonic interconnect solutions.

    Lumilens addresses the red hot market for AI data center infrastructure by designing, manufacturing and selling photonic interconnect solutions.

    Founded 2024San Jose, United States$709Mlast round Aug 2026
  8. 8CologixCologix operates 3 Central Ohio enterprise-grade data centers offering the densest interconnectivity in the region & the only regional data center to offer acce

    Cologix operates 3 Central Ohio enterprise-grade data centers offering the densest interconnectivity in the region & the only regional data center to offer acce

    Founded 2010Denver, United States$676Mlast round Mar 2026
  9. 9Seaborn NetworksSeaborn Networks specializes in the fields of information technology and telecommunications.

    Seaborn Networks specializes in the fields of information technology and telecommunications.

    Founded 2011Beverly, United States$519Mlast round Jan 2016
  10. 10Northwood SpaceNorthwood Space is a hardware solution that expands the orbits and frequency ranges available from the ground for satellite communication.

    Northwood Space is a hardware solution that expands the orbits and frequency ranges available from the ground for satellite communication.

    Founded 2023Los Angeles, United States$505Mlast round Nov 2026
  11. 11Nexthop AINexthop AI is a privately held company founded in 2024 and based in Santa Clara, California, with additional offices in Seattle, Vancouver, Dublin, and Bengaluru.

    Nexthop AI is a privately held company founded in 2024 and based in Santa Clara, California, with additional offices in Seattle, Vancouver, Dublin, and Bengaluru.

    Founded 2024Santa Clara, United States$500Mlast round Mar 2026
  12. 12Upscale AIFounded -United States$390Mlast round Jun 2026
  13. 13Celero CommunicationsCelero Communications is a semiconductor company founded in 2024, based in Irvine, California, with design centers in Canada and Argentina.

    Celero Communications is a semiconductor company founded in 2024, based in Irvine, California, with design centers in Canada and Argentina.

    Founded 2024Irvine, United States$375Mlast round Sept 2026
  14. 14Alien TechnologyAlien Technology is a leading manufacturer in the Radio Frequency Identification (RFID) industry, specializing in Ultra-High Frequency (UHF) passive RFID solutions.

    Alien Technology is a leading manufacturer in the Radio Frequency Identification (RFID) industry, specializing in Ultra-High Frequency (UHF) passive RFID solutions.

    Founded 1994San Jose, United States$361Mlast round Oct 2014
  15. 15Omni FiberOmni Fiber is an internet service provider.

    Omni Fiber is an internet service provider.

    Founded 2022Mason, United States$360Mlast round Dec 2025
  16. 16UbiquityUbiquity is a business that invests in, develops, and administers digital communication infrastructure.

    Ubiquity is a business that invests in, develops, and administers digital communication infrastructure.

    Founded 2019Overland Park, United States$350Mlast round May 2025
  17. 17Hubble NetworkHubble Network is a Seattle-based space technology and telecommunications company founded in 2021.

    Hubble Network is a Seattle-based space technology and telecommunications company founded in 2021.

    Founded 2021Seattle, United States$270Mlast round Sept 2026
  18. 18Force10 NetworksForce10 Networks is a tech company offering reliable infrastructure solutions to build and secure intelligent services networks.

    Force10 Networks is a tech company offering reliable infrastructure solutions to build and secure intelligent services networks.

    Founded 1999United States$255Mlast round Dec 2009
  19. 19BIG FiberBIG Fiber, based in Sunnyvale, California, is a metropolitan dark fiber infrastructure company that specializes in providing high-capacity, unlit fiber networks.

    BIG Fiber, based in Sunnyvale, California, is a metropolitan dark fiber infrastructure company that specializes in providing high-capacity, unlit fiber networks.

    Founded 2019Sunnyvale, United States$250Mlast round May 2026
  20. 20Solarflare CommunicationsSolarflare Communications is a technology company based in Irvine, California, founded in 2001.

    Solarflare Communications is a technology company based in Irvine, California, founded in 2001.

    Founded 2001Irvine, United States$243Mlast round Jan 2015
  21. 21GA TelesisGA Telesis a world-leading commercial aviation company.

    GA Telesis a world-leading commercial aviation company.

    Founded 2002San Jose, United States$225Mlast round Jun 2017
  22. 22When I WorkWhen I Work is a Minneapolis-based software company founded in 2010, specializing in an all-in-one workforce management platform tailored for shift-based businesses.

    When I Work is a Minneapolis-based software company founded in 2010, specializing in an all-in-one workforce management platform tailored for shift-based businesses.

    Founded 2010Minneapolis, United States$220Mlast round Nov 2021
  23. 23SmartSky NetworksSmartSky Networks was an aviation technology company based in Morrisville, North Carolina, founded in 2011.

    SmartSky Networks was an aviation technology company based in Morrisville, North Carolina, founded in 2011.

    Founded 2011Morrisville, United States$218Mlast round Jun 2022
  24. 24Affirmed NetworksAffirmed Networks develops mobile network solutions with gateway functionality, rich application and content delivery services.

    Affirmed Networks develops mobile network solutions with gateway functionality, rich application and content delivery services.

    Founded 2010Acton, United States$207Mlast round Feb 2019
  25. 25CornelisFounded -United States$205Mlast round Sept 2026
  26. 26EriduEridu is a hardware startup based in Silicon Valley, founded in 2023.

    Eridu is a hardware startup based in Silicon Valley, founded in 2023.

    Founded 2024Saratoga, United States$200Mlast round Mar 2026
  27. 27LeapXpertLeapXpert is a technology company based in New York, specializing in Responsible Business Communication.

    LeapXpert is a technology company based in New York, specializing in Responsible Business Communication.

    Founded 2017New York, United States$200Mlast round Jun 2026
  28. 28EchodyneEchodyne is a radar technology company based in Kirkland, Washington, founded in 2014.

    Echodyne is a radar technology company based in Kirkland, Washington, founded in 2014.

    Founded 2014Kirkland, United States$199Mlast round Jun 2022
  29. 29Bit9About Lambent (formerly Armored Things) Lambent is a Boston-based software company for smart space planning.

    About Lambent (formerly Armored Things) Lambent is a Boston-based software company for smart space planning.

    Founded -Boston, United States$178Mlast round Oct 2015
  30. 30AirbaseAirbase is a technology company dedicated to enhancing the wireless future through modern radio frequency (RF) spectrum coordination.

    Airbase is a technology company dedicated to enhancing the wireless future through modern radio frequency (RF) spectrum coordination.

    Founded -New York, United States$162Mlast round Mar 2026
  31. 31ManyChatManychat helps businesses do marketing, sales and support through Facebook Messenger.

    Manychat helps businesses do marketing, sales and support through Facebook Messenger.

    Founded 2015San Francisco, United States$158Mlast round Apr 2025
  32. 32ExteNet SystemsExteNet Systems Provides Communications Infrastructure And Services.

    ExteNet Systems Provides Communications Infrastructure And Services.

    Founded 2003United States$156Mlast round Jan 2010
  33. 33ContraContra is a San Francisco-based technology company founded in 2019 that operates a commission-free freelance network designed for independent professionals, cre

    Contra is a San Francisco-based technology company founded in 2019 that operates a commission-free freelance network designed for independent professionals, cre

    Founded 2019San Francisco, United States$151Mlast round Oct 2025
  34. 34Lumos Networks CorporationLumos Networks is a leading fiber-based service provider in the Mid-Atlantic region serving Carrier .

    Lumos Networks is a leading fiber-based service provider in the Mid-Atlantic region serving Carrier .

    Founded 2011Waynesboro, United States$150Mlast round Aug 2015
  35. 35AicentAicent provides data network services and solutions for mobile operators, and operates integrated mobile messaging services.

    Aicent provides data network services and solutions for mobile operators, and operates integrated mobile messaging services.

    Founded 2000San Jose, United States$145Mlast round Oct 2011
  36. 36Aria NetworksAria is a pioneer in using AI to optimize and automate telecom networks; prescriptive analytics and design automation for telecom and OTT

    Aria is a pioneer in using AI to optimize and automate telecom networks; prescriptive analytics and design automation for telecom and OTT

    Founded 2005United States$125Mlast round Apr 2026
  37. 37GainSpanGainSpan designs ultra low-power Wi-Fi modules for battery-powered, embedded WiFi applications.

    GainSpan designs ultra low-power Wi-Fi modules for battery-powered, embedded WiFi applications.

    Founded 2006San Jose, United States$118Mlast round Dec 2014
  38. 38EnfabricaEnfabrica develops hardware, software, and system technologies to resolve blockages in computing workloads.

    Enfabrica develops hardware, software, and system technologies to resolve blockages in computing workloads.

    Founded 2019Mountain View, United States$115Mlast round Nov 2024
  39. 39AltiostarFounded -United States$114Mlast round May 2019
  40. 40XirrusXirrus provides wireless networking products such as indoor and outdoor enclosures, snap-on covers, and I-beam mounting kits.

    Xirrus provides wireless networking products such as indoor and outdoor enclosures, snap-on covers, and I-beam mounting kits.

    Founded 2004San Francisco, United States$113Mlast round Mar 2015
  41. 41Kineto WirelessKineto offers internet protocol-based services and solutions for mobile operators.

    Kineto offers internet protocol-based services and solutions for mobile operators.

    Founded 2001Milpitas, United States$111Mlast round Apr 2012
  42. 42FreedomPopFreedomPop is a telecommunications company based in Los Angeles, founded in 2011 by Stephen Stokols and Steven Sesar.

    FreedomPop is a telecommunications company based in Los Angeles, founded in 2011 by Stephen Stokols and Steven Sesar.

    Founded 2011Thousand Oaks, United States$109Mlast round Aug 2016
  43. 43Aerohive NetworksAerohive Networks develops cooperative control architecture that improves the efficiency of enterprise Wi-Fi systems.

    Aerohive Networks develops cooperative control architecture that improves the efficiency of enterprise Wi-Fi systems.

    Founded 2006Milpitas, United States$105Mlast round Jul 2013
  44. 44AalyriaAalyria is an aerospace communications company founded in 2021, transitioning from a Google project in 2022.

    Aalyria is an aerospace communications company founded in 2021, transitioning from a Google project in 2022.

    Founded 2021Livermore, United States$100Mlast round Feb 2026
  45. 45PacketFabricPacketFabric builds a Network-as-a-Service platform that redefines network connectivity.

    PacketFabric builds a Network-as-a-Service platform that redefines network connectivity.

    Founded 2015United States$100Mlast round Aug 2019
  46. 46ZaiNarZaiNar is a technology company based in Belmont, California, founded in 2017.

    ZaiNar is a technology company based in Belmont, California, founded in 2017.

    Founded 2017Belmont, United States$100Mlast round Feb 2026
  47. 47Delos DataDelos Data is a technology company specializing in AI infrastructure and intelligence systems.

    Delos Data is a technology company specializing in AI infrastructure and intelligence systems.

    Founded -Palo Alto, United States$100Mlast round Sept 2026
  48. 48Federated WirelessFederated Wireless develops a spectrum controller for wireless networks and communication intended to revolutionize the wireless industry.

    Federated Wireless develops a spectrum controller for wireless networks and communication intended to revolutionize the wireless industry.

    Founded 2012Arlington, United States$98Mlast round Sept 2023
  49. 49FiberLightFiberLight provides mission critical high performance networks for enterprise, carrier, government and service providers.

    FiberLight provides mission critical high performance networks for enterprise, carrier, government and service providers.

    Founded 1998Plano, United States$97Mlast round Oct 2013
  50. 50PlayPhonePlayPhone is a social gaming developer providing solutions to wireless carriers.

    PlayPhone is a social gaming developer providing solutions to wireless carriers.

    Founded 2003San Jose, United States$95Mlast round Jan 2012
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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