Weekly AI Startup Funding Dips Amid Smaller Investment Rounds

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This is a weekly feature that runs down the week’s Top 10 announced funding rounds in the U.S. Check out last week’s biggest funding deal roundup here.

While venture investors are by no means halting their activity, they dialed back on massive transactions during the past week. Only two startup financings crossed the threshold of several hundred million dollars. AI infrastructure provider Modal Labs claimed the largest investment with a $750 million haul, trailed by construction automation unicorn Icon, which brought in $200 million. Additional sectors drawing significant capital over the week featured biotech, insurance, and artificial intelligence.

1. Modal Labs, $750M, AI infrastructure: Modal Labs, a supplier of cloud infrastructure supporting AI inference alongside other software applications, collected $750 million via a Series D financing round. Spearheaded by Accel, the deal values the New York-based enterprise at $15.75 billion. The firm reported that its annual revenue run rate recently surpassed $1 billion.

2. Icon, $200M, construction tech: Austin-headquartered Icon, a creator of robotic construction technology renowned for producing 3D-printed houses, finalized a $200 million Series D round. Baillie Gifford and BlackRock led the financing. The business notes it remains on track to achieve 4x revenue growth throughout 2026.

3. Soufflé Therapeutics, $135M, RNA therapies: Boston-based Soufflé Therapeutics, which specializes in developing RNA-based treatments, secured $135 million through a Series B round. Juvia Group led the investment alongside a broad syndicate of backers.

4. Estuary Biotherapeutics, $103M, gene therapies: Menlo Park, California-based Estuary Biotherapeutics—a creator of genetic medicines targeting severe kidney ailments—officially launched backed by $103 million in capital. This total encompasses a $93 million Series A round directed by RA Capital Management alongside $10 million in previously unpublicized seed funding.

5. Labelbox, $100M, AI tools: Labelbox, a creator of platforms designed to train and assess AI models while deploying self-improving agents, landed $100 million in Series E financing. Infinitum Partners drove the investment for the 8-year-old enterprise located in San Francisco.

6. Suki, $90M, health AI: Redwood City, California-based Suki, a designer of AI utilities that convert clinical dialogues into structured data for documentation, medical coding, and extra healthcare administration tasks, revealed a $90 million Series E investment. Contributors included Healthier Capital and Crosslink Capital.

7. Abby Care, $82M, caregiver platform: Abby Care, an application enabling relatives to become officially certified, compensated caregivers providing home-based assistance, completed an $82 million Series C round, according to a Fortune publication. Transformation Capital managed the investment for this 5-year-old San Francisco startup.

8. Stand, $70M, insurance: Stand, a provider specializing in property insurance for residences situated within high-risk natural disaster zones, picked up $70 million in Series C financing at a $1 billion valuation. Saga Ventures headed the round for the 3-year-old San Francisco company.

9. Mueon, $65M, semiconductor systems: Mueon Corp., a semiconductor systems developer formulating a modular platform tailored for AI and hyperscale computing infrastructure, finalized a $65 million Series A round. Maverick Silicon directed the financing for the Portland, Oregon-based business.

10. North.cloud, $60M, AI spend management: New York-based North.cloud, creator of an infrastructure expense intelligence and automation platform, brought in $60 million through a Series B round led by PeakSpan Capital.

Methodology

We tracked the largest announced rounds in the Crunchbase database that were raised by U.S.-based companies for the period of Oct. 10-16, 2026. Although most announced rounds are in the database, there may be a small time lag, as some rounds are reported late in the week.

Illustration: Dom Guzman

Frequently Asked Questions

Which company secured the largest funding round of the week?

Modal Labs captured the biggest round, securing $750 million in a Series D funding round.

What does Modal Labs do?

Modal Labs provides cloud infrastructure for AI inference and other software applications.

Which sectors attracted larger funding rounds this past week?

The sectors that drew larger rounds included biotech, insurance, construction tech, semiconductor systems, and artificial intelligence.

What time period does this funding roundup cover?

The data tracks announced funding rounds raised by U.S.-based companies from October 10 to October 16, 2026.

Which company attained unicorn status with a $1 billion valuation during this period?

Stand, a provider of natural disaster home insurance, secured its Series C funding at a $1 billion valuation.