Modal Labs Leads Week’s Mega-Funding with $750 Million, Followed by Construction Tech Unicorn Icon

The week of Oct. 10-16, 2026 saw investors pour $1.5 billion into ten U.S. startups, but only two deals topped the $100 million threshold. Modal Labs captured the headline with a $750 million Series D, while Austin-based construction-automation firm Icon closed a $200 million round. The remaining eight companies raised between $60 million and $135 million, spanning biotech, insurance, semiconductor and health AI.

Modal Labs, a New York-headquartered provider of cloud infrastructure for AI inference, announced a $750 million Series D led by Accel that values the company at $15.75 billion. The firm reported that its annual revenue run rate has just passed $1 billion, underscoring the rapid monetization of AI compute services. For founders building AI-centric platforms, the deal signals that deep-pocketed venture firms remain willing to fund large-scale infrastructure playbooks that can capture a share of the expanding AI spend.

Icon, the Austin-based developer of robotic construction systems and 3D-printed homes, secured $200 million in a Series D led by Baillie Gifford and BlackRock. The company projects a four-fold revenue increase in 2026, reflecting strong demand for automated building solutions. The financing illustrates that capital is still flowing into hardware-intensive ventures that can demonstrate clear path to scale, even as some investors have trimmed the size of their bets.

Boston’s Soufflé Therapeutics raised $135 million in a Series B led by Juvia Group to advance RNA-based therapies, while Menlo Park’s Estuary Biotherapeutics launched with $103 million that includes a $93 million Series A led by RA Capital Management and an additional $10 million seed infusion. Both biotech firms highlight continued interest in next-generation therapeutics despite broader market caution.

Labelbox, an eight-year-old San Francisco AI-tool developer, attracted $100 million in a Series E round led by Infinitum Partners. The funding will support its platform for training and evaluating machine-learning models, a space that remains competitive but essential for enterprises adopting AI.

Health-focused AI startup Suki of Redwood City announced a $90 million Series E, while caregiver marketplace Abby Care secured $82 million in Series C led by Transformation Capital. Both rounds demonstrate that niche AI applications in health and home care continue to draw investor confidence.

Insurance provider Stand, which offers policies for homes in high-risk natural-disaster zones, closed a $70 million Series C at a $1 billion valuation, led by Saga Ventures. Semiconductor systems company Mueon Corp. completed a $65 million Series A, and New York-based spend-management platform North.cloud raised $60 million in Series B, each reflecting targeted interest in specialized infrastructure and operational efficiency tools.

Overall, the week’s funding landscape shows that while the volume of mega-rounds has contracted, capital remains available for companies that can demonstrate strong revenue trajectories, defensible technology stacks, and clear market demand. Founders should note that investors are still rewarding scale-ready AI and automation businesses, but they are also scrutinizing growth metrics more closely. The next wave of funding will likely hinge on how quickly these firms can convert their sizable capital infusions into sustainable profitability.