US Startup Funding Rounds: October 12, 2026 – October 18, 2026
25 US venture rounds closed between October 12, 2026 and October 18, 2026, led by Ant International’s Alipay+ at $1.20B (Series A).
Every round below is a named venture round by a US-headquartered company, sourced from SEC filings and verified announcements. Investment funds, IPOs, post-IPO placements and valuation-only reports are excluded.
| Company | Location | Amount | Round | Date | What they do |
|---|---|---|---|---|---|
| Ant International’s Alipay+ | New York, New York | $1.20B | Series A | October 16, 2026 | Ant International’s Alipay+ is a leading cross-border fintech services platform that focuses on providing innovative solutions for businesses and cons… |
| Modal | New York, New York | $750M | Series D | October 14, 2026 | Modal is a company that provides a global, code-first compute platform built specifically for AI and machine learning workloads. Its platform supports… |
| OMass | — | $310M | Series C | October 15, 2026 | It uses a combination of novel biochemistry, native mass spectrometry and custom chemistry. The funding, which is an extension of its Series B, will b… |
| CAIS | New York, New York | $170M | Series D | October 15, 2026 | CAIS is the leading alternative investment platform for independent financial advisors, serving over 2,500 wealth management firms representing more t… |
| Inferact | San Francisco, California | $150M | Seed | October 16, 2026 | Inferact is a startup that evolved from the open-source vLLM project, which specializes in AI inference technology. The company focuses on enhancing t… |
| Soufflé Therapeutics | Boston, Massachusetts | $135M | Series B | October 13, 2026 | Soufflé Therapeutics is a biotech company focused on creating siRNA medicines that are targeted and cell-specific. Co-founded by renowned scientist Ro… |
| Estuary Biotherapeutics | Menlo Park, California | $93M | Series A | October 16, 2026 | Estuary Biotherapeutics, Inc. is a biotechnology company focused on developing genetic medicines for patients with serious kidney diseases. The compan… |
| Suki | Redwood City, California | $90M | Series E | October 14, 2026 | Suki is an ambient clinical intelligence (ACI) platform that uses AI to transform clinical conversations into actionable intelligence. The company's E… |
| Stand | San Francisco, California | $70M | Series C | October 15, 2026 | Stand is a company reimagining insurance for climate-impacted properties. It leverages advanced physics and AI modeling to create tailored risk-mitiga… |
| Mueon | Portland, Oregon | $65M | Series A | October 15, 2026 | Mueon is a Portland, OR-based company developing semiconductor-based systems for AI and hyperscale computing. Led by CEO Wilfred Gomes, Mueon Corporat… |
| Oak | San Francisco, California | $60M | Seed | October 15, 2026 | Oak is the AI-native Identity Operating System that rewires enterprise identity and access management. It builds a live identity graph from raw eviden… |
| Albert Invent | Oakland, California | $55M | Series B | October 13, 2026 | Albert Invent is a leading materials science research and development platform that accelerates chemical innovation using artificial intelligence. The… |
| Gallatin AI | Washington, District of Columbia | $50M | Series A | October 12, 2026 | Gallatin AI is a defense technology company based in Washington, DC. It provides an AI-native platform, Navigator, that enhances military logisticians… |
| Reach Security | Sunnyvale, California | $50M | Series B | October 14, 2026 | Reach Security is transforming the way companies use their security tools. With a focus on optimizing what teams already own rather than adding comple… |
| Harmonic Security | SAN FRANCISCO, California | $50M | Series B | October 14, 2026 | Harmonic Security gives security teams the tools to protect sensitive data without the headaches of labeling and complex rules. Our pre-trained data p… |
| Prolific Machines | San Francisco | $50M | Series B | October 15, 2026 | Prolific Machines is a biomanufacturing company inventing novel technologies to grow and differentiate stem cells at a dramatically lower cost relativ… |
| Microbiotica | Cambridge | $48M | Series C | October 16, 2026 | Microbiotica is a leading player in the field of microbiome-based therapeutics, biomarkers and targets. The Company is building a growing pipeline of … |
| Sirona Medical, Inc. | San Francisco | $40M | Series D | October 15, 2026 | AI + radiology |
| Scuba | New York, New York | $34M | Seed | October 13, 2026 | Scuba is a shared context engine designed to enhance collaboration among teams and their agents. The company aims to provide tools that enable more ef… |
| Duvo.ai | Prague, Oklahoma | $32M | Series A | October 14, 2026 | Duvo.ai is a company focused on AI-native automation for retail operations. Their platform allows retail teams to automate tasks across various legacy… |
| Meow | Miami Beach, Florida | $31.6M | Series B | October 16, 2026 | Meow is the compliant bridge for institutional and corporate investors to participate in emerging cryptocurrency investment opportunities. Founded by … |
| Catalyst | San Francisco | $30M | Seed | October 12, 2026 | Prior to this, the Ali Ghodsi-led data and AI company had primarily backed prominent data stack players such as dbt Labs, Matilion, and Alation. The c… |
| Mistlabs | San Francisco, California | $26M | Pre-Series A | October 12, 2026 | Mistlabs is a U.S. developer of cross-platform ambient intelligence technologies. The company is launching Ambi, a groundbreaking ambient intelligence… |
| EZ Bombs | Orlando, Florida | $25M | Series A | October 14, 2026 | EZ Bombs is the creator of the Seasoning Bomb category and the #1 food and beverage product on TikTok Shop in 2025. The company specializes in shelf-s… |
| Acta Pharmaceuticals | Boston, Massachusetts | $24M | Seed | October 15, 2026 | Acta Pharmaceuticals is a biopharmaceutical company focused on developing innovative therapies for Alzheimer's disease. The company aims to address ea… |
Frequently asked
Which US startups raised funding between October 12, 2026 and October 18, 2026?
25 US companies closed named venture rounds between October 12, 2026 and October 18, 2026, raising $3.64B in total. The largest were Ant International’s Alipay+ ($1.20B, Series A), Modal ($750M, Series D), OMass ($310M, Series C). Each round below is sourced from SEC filings and verified announcements, and excludes investment funds, IPOs and post-IPO placements.
What was the largest funding round of the week of October 12, 2026?
Ant International’s Alipay+ of New York, New York raised $1.20B in a Series A round announced October 16, 2026. Ant International’s Alipay+ is a leading cross-border fintech services platform that focuses on providing innovative solutions for businesses and consumers. It It was the largest US venture round recorded in this window across 25 qualifying rounds.
How many US venture rounds closed this week?
25 named US venture rounds closed between October 12, 2026 and October 18, 2026, totalling $3.64B. This counts only rounds with a named series (Seed through Series G+) by US-headquartered operating companies. Investment funds raising vehicles, IPOs, post-IPO equity and valuation-only reports are excluded so the figures reflect genuine startup fundraising.
These are the rounds. Fundz gives you the people to call at each one — verified decision-makers matched to your market, the moment a round lands.
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