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SaaS funding roundup: $1.1B raised in the first week of September

Wonderful and Gimlet Labs led a week dominated by AI infrastructure and agent platforms — plus Adobe’s buy of Rilo.

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A group of people having a meeting · Photo: Mario Gogh / Unsplash
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The first week of September was a big one for SaaS and AI funding. Here's every notable round from September 1–7, 2026, plus one acquisition.

The rounds

CompanyWhat it doesRoundDate
WonderfulAI operating system for enterprises$550M Series C, valuing the company at $5BSep 1
Gimlet LabsInference cloud for AI across different chip types$300M Series B (Arm and Microsoft's M12 took part)Sep 4
CapacityCustomer support automation$54M Series ESep 2
ConveoConsumer research platform$50M Series ASep 2
PeopleXAI HR platform, launching its "MotherAI" operating system$34M Series ASep 2
Lasso SecurityGuardrails for AI$30M Series ASep 2
PatientIQPatient outcomes intelligence$30M Series CSep 3
EnhanceFitness management software$18.2M equity and debt round; reports 65% revenue growthSep 2
PaytnerInvoice factoring$14.9M Series D; planning a Japan IPOSep 1
Diameter PayStablecoin payments$10M Series ASep 3

The deal

Adobe acquired Rilo, an Indian startup that automates marketing workflows. Terms weren't disclosed (September 2).

What the week tells us

  • AI infrastructure and agent platforms took most of the money. Wonderful and Gimlet Labs alone raised $850 million, more than all the other rounds in the table combined.
  • Vertical SaaS is still getting funded. Fitness studios (Enhance), healthcare (PatientIQ) and HR (PeopleX) all raised, and most are adding AI to their products.
  • AI safety is becoming its own category. Lasso Security's round is part of growing spending on controls for AI agents in the enterprise.

Figures are as reported in the week's funding announcements. Follow our News section for weekly roundups.

Sources
#Funding#Roundup#AI
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