signal/raiseTrack rounds

Largest Series B rounds of 2026

The biggest Series B rounds announced in 2026, ranked by round size.

Rounds ranked50
Combined$8.61bn
Median$98.5m
  1. 1Isomorphic LabsSeries B Healthtech & bio · London · 12 May · led by Thrive Capital$2.1bn
  2. 2Valar AtomicsSeries B Climate & energy · Hawthorne · 3 Aug · led by Sequoia Capital$1bn
  3. 3Proxima FusionSeries B Climate & energy · Munich · 7 Jul · led by XTX Ventures, East X Ventures · $2.7bn valuation$468m
  4. 4Gimlet LabsSeries B AI · San Francisco · 4 Sep · led by Andreessen Horowitz · $3bn valuation$300m
  5. 5ShengShu TechnologySeries B AI · Beijing · 10 Apr · led by Alibaba Cloud · $1.76bn valuation$293m
  6. 6VinciSeries B AI · Palo Alto · 6 Oct · led by Advent, Temasek · $1.5bn valuation$250m
  7. 7UpwindSeries B Cybersecurity · San Francisco · 26 Jan · led by Bessemer Venture Partners · $1.5bn valuation$250m
  8. 8FractileSeries B Robotics & hardware · London · 14 May · led by Accel, Factorial Funds$220m
  9. 9ArenaSeries B AI · United States · 8 Oct · led by Lightspeed Venture Partners, Khosla Ventures · $3.1bn valuation$200m
  10. 10Type One EnergySeries B Climate & energy · Knoxville · 6 Oct · led by Breakthrough Energy Ventures, Clutterbuck Capital$200m
  11. 11Harmattan AISeries B Defence & space · Paris · 12 Jan · led by Dassault Aviation · $1.4bn valuation$200m
  12. 12VerdaSeries B AI · Helsinki · 22 Sep · led by Emergence Capital$189m
  13. 13QuantWareSeries B Robotics & hardware · Delft · 5 May$178m
  14. 14Laza MedicalSeries B Healthtech & bio · Los Gatos · 4 Nov · led by GE HealthCare$160m
  15. 15Mazama EnergySeries B Climate & energy · Frisco · 17 Sep · led by Centaurus Capital, Doerr Capital$135m
  16. 16Salience LabsSeries B Robotics & hardware · Oxford · 14 Oct · led by Bullhound Capital$125m
  17. 17iPronicsSeries B Robotics & hardware · Valencia · 2 Sep · led by Maverick Silicon, Light Street Capital$125m
  18. 18TraversalSeries B Developer tools · New York · 3 Nov · led by Kleiner Perkins, Redpoint Ventures · $1bn valuation$120m
  19. 19General MedicineSeries B Healthtech & bio · San Francisco · 6 Oct · led by Andreessen Horowitz$120m
  20. 20HypersonicaSeries B Defence & space · Munich · 2 Nov · led by Lightspeed, General Catalyst$112m
  21. 21Peak EnergySeries B Climate & energy · Burlingame · 21 Oct · led by GM Ventures$108m
  22. 22TownSeries B AI · San Francisco · 19 Oct · led by Forerunner Ventures, Menlo Ventures · $1bn valuation$108m
  23. 23QuartermasterSeries B Defence & space · Arlington · 28 Sep · led by Insight Partners$100m
  24. 24Tandem HealthSeries B Healthtech & bio · Stockholm · 14 Sep · led by Scaleup Europe Fund (EQT)$100m
  25. 25HiddenLayerSeries B Cybersecurity · Austin · 2 Sep · led by Delta-v Capital$100m
  26. 26Efficient ComputerSeries B AI · Pittsburgh · 29 Sep · led by TQ Ventures · $650m valuation$97m
  27. 27Nous ResearchSeries B AI · United States · 7 Oct · led by Robot Ventures · $1.5bn valuation$90m
  28. 28SpikoSeries B Fintech · Paris · 6 Oct · led by NEA$90m
  29. 29EmaSeries B AI · Mountain View · 23 Sep · led by Creaegis$77m
  30. 30KalepaSeries B Fintech · New York · 5 Nov · led by Updata Partners · $470m valuation$75m
  31. 31Multiply LabsSeries B Robotics & hardware · San Francisco · 6 Oct · led by Patrick Soon-Shiong, NantWorks$75m
  32. 32NevisSeries B Fintech · New York · 26 Oct · led by EQT Ventures$70m
  33. 33North.cloudSeries B Developer tools · New York · 15 Oct · led by PeakSpan Capital$60m
  34. 34CasapSeries B Fintech · New York · 28 Oct · led by Base10 Partners$56m
  35. 35Rabot EnergySeries B Climate & energy · Hamburg · 15 Oct · led by Endeit, DeepTech & Climate Fonds$56m
  36. 36AlbertSeries B AI · Oakland · 13 Oct · led by TCV$55m
  37. 37ConfidoSeries B AI · New York · 22 Sep · led by Insight Partners$55m
  38. 38FormicSeries B Robotics & hardware · Chicago · 22 Oct · led by Mercato Partners$50m
  39. 39Reach SecuritySeries B Cybersecurity · San Francisco · 13 Oct · led by Top Tier Capital Partners$50m
  40. 40NamespaceSeries B Developer tools · Zurich · 5 Oct · led by Scale Venture Partners$42m
  41. 41BoldfitSeries B Commerce & marketing · Bengaluru · 12 Oct · led by Bharat Value Fund$41.8m
  42. 42CollectiveSeries B Fintech · San Francisco · 29 Oct · led by General Catalyst, QED Investors$40m
  43. 43InfisicalSeries B Cybersecurity · San Francisco · 27 Oct · led by Elad Gil · $600m valuation$40m
  44. 44HadrianSeries B Cybersecurity · Amsterdam · 6 Oct · led by Forgepoint Capital International, Smartfin$40m
  45. 45FlamSeries B Commerce & marketing · Bengaluru · 15 Sep · led by QED Investors$40m
  46. 46Outmarket AISeries B Fintech · San Francisco · 28 Sep · led by SignalFire$34.5m
  47. 47Tiny HealthSeries B Healthtech & bio · Austin · 29 Sep · led by B Capital$33m
  48. 48NovaGo TherapeuticsSeries B Healthtech & bio · Schlieren · 2 Sep · led by Neurimmune, Pureos Bioventures$30m
  49. 49RyftSeries B Fintech · Manchester · 17 Sep · led by Gresham House Ventures$26.8m
  50. 50East Africa FoodsSeries B Mobility & logistics · Dar es Salaam · 7 Oct · led by PIDG InfraCo$26m

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