← August 2026 · October 2026 → · all rounds in the Tech Funding Tracker

every round announced in September 2026

CompanyRaisedRoundValuationInvestorsSectorDateSource
Varda Space IndustriesMicrogravity pharmaceutical processing (orbital capsules) $251M Series D n/a Lux Capital and Natural Capital (co-leads), Founders Fund, Khosla Ventures, Caffeinated Capital, General Catalyst, 8090 Industries, Giant Step, Also Capital Defense and space September 30, 2026 ↗ source
CScaleOptical interconnect for AI scale-up $145M Series C n/a Atreides Management (lead), Valor Equity Partners, Premji Invest (co-lead), Sutter Hill Ventures, Maverick Silicon, NVIDIA, Intel Capital AI infrastructure and chips September 30, 2026 ↗ source
MetaviewAI recruiting agents $60M Series C n/a Insight Partners (lead), GV, Intrepid Growth Partners, Seedcamp, Vertex Ventures US, Plural, Garuda Ventures AI agents and apps September 30, 2026 ↗ source
Fortem TechnologiesCounter-drone airspace security $50M Series B n/a Lockheed Martin (lead), Unusual Machines Defense and space September 30, 2026 ↗ source
Flow EngineeringAgentic systems engineering for hardware teams $50M Series B $750M Valor Equity Partners and Atreides Management (co-leads), Sequoia Capital, Human Capital, Evantic, SV Angel, Odyssey, EQT AI agents and apps September 30, 2026 ↗ source
OuterSignalAgentic customer intelligence for consumer brands $22M Series A n/a Long Journey Ventures and Abstract Ventures (co-leads), BAM Ventures, Top Shelf Ventures, SuperAngel.Fund, AME Cloud Ventures AI agents and apps September 30, 2026 ↗ source
RestateDurable execution runtime for agents and backends $20M Series A n/a Singular (lead), Redpoint Ventures, Capital One Ventures Developer tools September 30, 2026 ↗ source
EliseAIVertical AI (housing, healthcare) $350M n/a $4B Andreessen Horowitz, Bessemer Venture Partners, Ontario Teachers' Pension Plan, Sapphire Ventures, Navitas Capital AI agents and apps September 29, 2026 ↗ story
General IntuitionAction models trained on gameplay video $220M n/a $6.2B n/a AI models and labs September 29, 2026 ↗ source
ReverionSolid oxide fuel cell power plants $175M Series B n/a Kembara (lead), Allianz, KfW Capital, Aurum Impact, Carbon Equity Energy and power September 29, 2026 ↗ source
InstinctConsumer AI agents $1B Series C $10B Sequoia Capital, Benchmark, Coatue AI agents and apps September 28, 2026 ↗ story
SiMa.aiPhysical AI chips and software $150M Series C $1.45B Fidelity Management & Research Company and Amplify (co-leads), AllianceBernstein, Baron Capital, J.P. Morgan, State of Michigan, Alter Venture Partners, Dell Technologies Capital, Maverick Capital, +ND Capital, Point72, StepStone Group AI infrastructure and chips September 28, 2026 ↗ source
QuartermasterShip-mounted ocean sensing network (SmartMast) $100M Series B n/a Insight Partners (lead), Overmatch Ventures, First Round Capital, Quiet Capital, Steel Atlas, TMV Defense and space September 28, 2026 ↗ source
OutmarketAI operating system for insurance agencies $34.5M Series B n/a SignalFire (lead), Fika Ventures, Permanent Capital Ventures, TTV Capital, Dash Fund AI agents and apps September 25, 2026 ↗ source
Snorkel AIAI training data / RL environments $350M Series E $3.5B Insight Partners and S32 (co-leads), with March Capital, Blumberg Capital, Allegis Capital, Frontline, Standard, Third Point Ventures, Addition, Greylock, Lightspeed, GV, Factory, Prosperity7, Walden Catalyst, Wells Fargo AI infrastructure and chips September 22, 2026 ↗ story
Kairos PowerAdvanced nuclear / AI data center power up to $100M Strategic investment n/a Samsung C&T ($70M equity + $30M in-kind engineering services) Energy and power September 21, 2026 ↗ story
ProfoundAI search visibility and marketing agents $180M Series D $1.8B Sequoia Capital and Kleiner Perkins (co-leads), Lightspeed Venture Partners, Khosla Ventures, Saga Ventures, Evantic, South Park Commons AI agents and apps September 15, 2026 ↗ source
TemporalDeveloper infrastructure / durable execution for AI agents $550M Series E $12.55B Lightspeed, Wellington Management, Growth Equity at Goldman Sachs Alternatives, Tiger Global (co-leads); T. Rowe Price, SV Angel; a16z, Sequoia, Index, GIC, Sapphire Ventures, Amplify (existing) Developer tools September 14, 2026 ↗ story
Mistral AISovereign AI / open-weight foundation models €3B (~$3.5B) Series D €21B+ Samsung Electronics (lead); Scaleup Europe Fund / EQT, PSG Equity (co-leads); Advent, BlackRock funds, Grand Duchy of Luxembourg (new); a16z, ASML, DST Global, General Catalyst, Index Ventures, Nvidia, Salesforce Ventures (existing) AI models and labs September 8, 2026 ↗ story
PixxelSpace tech / hyperspectral Earth observation $100M Series C n/a Temasek, Seraphim Space (co-lead); 360 ONE Asset, IMM Investment (new); Radical Ventures, growX ventures (existing) Defense and space September 7, 2026 ↗ story
Gimlet LabsAI infrastructure / multi-silicon inference orchestration $300M Series B $3B Andreessen Horowitz (lead); Arm, M12 (Microsoft) (new); Sapphire Ventures, Menlo Ventures, Factory (existing) AI infrastructure and chips September 5, 2026 ↗ story
CrusoeAI infrastructure / cloud data centers $3B+ Growth (unnamed round) $30B Atreides Management and Valor Equity Partners (co-lead); Mubadala Capital AI infrastructure and chips September 3, 2026 ↗ story
GuardioConsumer cybersecurity / AI-scam defense $40M Growth (unnamed round) $1.1B Assaf Rappaport (Wiz co-founder/CEO); ION Crossover Partners, Union Tech Ventures, Vintage Investment Partners, Cerca Partners, Emerge Ventures Cybersecurity September 3, 2026 ↗ story
WonderfulEnterprise AI orchestration / AI operating system $550M Series C $5B Insight Partners (lead); Salesforce AI agents and apps September 2, 2026 ↗ story
FelixFintech / AI-driven remittances $200M Series C n/a Andreessen Horowitz and General Catalyst (co-leads); QED Investors, Castle Island Ventures, Switch Ventures, Contour Venture Partners and Endeavor Catalyst (equity); General Catalyst's Customer Value Fund (debt facility) Fintech and crypto September 1, 2026 ↗ story
AIR SecurityAI agent security / enterprise cybersecurity $50M Seed (two rounds, same day) n/a Sequoia Capital ($10M, first close) and Greenoaks Capital ($40M, second close); Swish Ventures, Netz, and angels including Wiz co-founder Yinon Costica, Eon co-founder Ofir Ehrlich, Cognition president Zach Frankel, Clay co-founder Varun Anand, and Anne Neuberger Cybersecurity September 1, 2026 ↗ story

by sector

  • AI infrastructure and chips: $3.94B across 5 rounds
  • AI models and labs: $3.72B across 2 rounds
  • AI agents and apps: $2.25B across 8 rounds
  • Developer tools: $570M across 2 rounds
  • Defense and space: $501M across 4 rounds
  • Energy and power: $275M across 2 rounds
  • Fintech and crypto: $200M across 1 round
  • Cybersecurity: $90M across 2 rounds

← August 2026 · October 2026 → · all rounds in the Tech Funding Tracker