Top 10 Startup and Tech Funding News – October 6, 2025

It’s Monday, October 6, 2025, and we’re back with the top startup and tech funding news stories shaping the day. From massive late-stage infrastructure bets to strategic biotech financings and climate tech breakthroughs, investors kept their checkbooks open across every stage and geography.

Today’s lineup features headline-grabbing rounds in developer infrastructure, fraud detection, and next-generation biotech. Vercel led with a $300 million Series F round at a $9.3 billion valuation, cementing its role as a critical layer in AI-powered web development. Supabase followed with a $100 million Series E to expand its open-source backend platform, while Feedzai pulled in $75 million to scale its AI-driven financial crime detection network. In Europe, NanoPhoria Bioscience closed a landmark €83.5 million Series A for its inhalable heart therapy, and Trogenix raised €80 million to advance “Trojan Horse” gene therapies for aggressive cancers.

Cybersecurity player Filigran secured $58 million to expand its open-source threat intelligence platform, while Harvey attracted €50 million in strategic capital to grow its AI legal assistant globally. On the healthtech front, Heidi raised $65 million to scale its AI “Care Partner” for clinicians. Climate tech startup Vycarb grabbed $5 million to expand its ocean-based carbon removal system, and Fintech-IT Group became Ukraine’s newest unicorn following a strategic investment from UMAEF.

Funding Highlights

• Vercel dominated the day with a $300 million Series F at a $9.3 billion valuation, reinforcing its position at the core of the AI web stack.

• Supabase raised $100 million to scale its open-source backend platform and deepen AI developer tools.

• Feedzai secured $75 million to expand its AI-powered financial crime detection across global markets.

• NanoPhoria Bioscience closed €83.5 million to advance inhalable therapies for heart failure.

• Trogenix raised €80 million to push its next-generation gene therapies into clinical trials.

• Other notable rounds included Filigran ($58 M Series C), Harvey (€50 M strategic), Heidi ($65 M Series B), Vycarb ($5 M seed), and Fintech-IT Group’s unicorn-making investment.

Investor Activity

The day drew backing from a mix of top-tier venture firms, sovereign wealth funds, and strategic corporates. Accel, GIC, Peak XV, and EQT Growth anchored the largest rounds, while strategic investors such as BlackRock, Deutsche Telekom, Eli Lilly, and UMAEF made targeted bets across cybersecurity, biotech, and fintech. The spread showcased the current investment barbell: mega-rounds fueling infrastructure and AI powerhouses alongside robust early-stage activity in healthtech, climate, and deeptech.

Here’s the full breakdown. Until tomorrow, have a great evening.

Vercel Lands $300M Series F as AI Web Platform Soars to $9.3B Valuation

Vercel, the Silicon Valley-based cloud platform powering modern web applications and AI tools, has raised $300 million in a heavily oversubscribed Series F round, catapulting its valuation to $9.3 billion. The round was co-led by Accel and Singapore’s sovereign wealth fund GIC, with participation from BlackRock, StepStone, and Khosla Ventures.

Vercel’s platform has become a core layer of internet infrastructure for companies like OpenAI, Anthropic, and Nike—enabling developers to deploy scalable websites and AI applications without managing their own servers. This latest infusion will fund the expansion of Vercel’s AI cloud services, security enhancements, and its rapidly growing AI developer assistant. It also positions the company to compete more aggressively in the global edge computing and AI hosting market.

Funding Details:

• Startup: Vercel

• Investors: Accel (co-lead), GIC (co-lead), BlackRock, StepStone, Khosla Ventures

• Amount Raised: $300 million

• Total Raised: ~$860 million

• Funding Stage: Series F

• Funding Date: September 30, 2025

Supabase Raises $100M in Series E Funding to Hit $5B Valuation

Supabase, the San Francisco–headquartered open-source backend-as-a-service startup, secured a $100 million Series E round that pushes its valuation to $5 billion. The financing was led by Accel and Peak XV, with participation from Figma Ventures and other strategic backers.

Supabase has emerged as the leading alternative to Firebase, giving developers a powerful open-source stack built on Postgres, real-time APIs, authentication, and storage. The company plans to use this capital to expand its AI-assisted developer tools, deepen its global infrastructure footprint, and scale enterprise support as it attracts more high-traffic customers. The round underscores continued investor appetite for infrastructure plays that combine open-source roots with strong commercial traction.

Founded in 2020, the San Francisco-based startup started as a Firebase alternative and built its platform on PostgreSQL. Over time, it turned that foundation into a full-service backend that lets developers plug in authentication, APIs, file storage, real-time subscriptions, and vector databases—all without being locked into a proprietary system. Its promise is simple: “build in a weekend, scale to millions.”

Funding Details:

• Startup: Supabase

• Investors: Accel (lead), Peak XV, Figma Ventures, others

• Amount Raised: $100 million

• Total Raised: Not disclosed (~$200 million+ prior)

• Funding Stage: Series E

• Funding Date: October 6, 2025

Feedzai Secures $75M in Funding to Bolster AI-Driven Financial Crime Detection

Feedzai, the Lisbon-founded fintech scaleup focused on AI-powered fraud prevention and anti–money laundering, raised $75 million in fresh funding at a $2 billion valuation. The round drew participation from Lince Capital, Iberis Capital, Explorer Investments, Oxy Capital, and Buenavista Equity Partners.

Feedzai’s platform processes massive transaction volumes for global banks and payment networks, detecting suspicious behavior in real time and blocking fraud before it happens. With the new capital, the company plans to accelerate product development, expand into Latin America and Asia, and strengthen its enterprise sales organization. This round reinforces Feedzai’s position as one of Europe’s strongest late-stage AI fintech players.

Funding Details:

• Startup: Feedzai

• Investors: Lince Capital, Iberis Capital, Explorer Investments, Oxy Capital, Buenavista Equity Partners

• Amount Raised: $75 million

• Total Raised: Not disclosed

• Funding Stage: Growth / Late-stage venture

• Funding Date: October 6, 2025

NanoPhoria Bioscience Nets €83.5M Series A for Breakthrough Heart Therapy

Milan-based NanoPhoria Bioscience announced the first close of an €83.5 million Series A round to advance its inhalable drug delivery platform for heart failure. The round was led by XGEN Venture, Sofinnova Partners, and CDP Venture Capital, with Panakès Partners and another undisclosed investor joining.

Founded in 2022 as a spin-off from Italy’s National Research Council, NanoPhoria is pioneering a “nano-in-micro” delivery system that enables targeted drug transport to the heart through inhalation. Its lead program aims to treat heart failure with reduced ejection fraction — a condition affecting millions worldwide. The new capital will fund early clinical trials, manufacturing scale-up, and pipeline expansion, making this one of Italy’s largest biotech Series A financings to date.

Funding Details:

• Startup: NanoPhoria Bioscience

• Investors: XGEN Venture (lead), Sofinnova Partners, CDP Venture Capital, Panakès Partners, others undisclosed

• Amount Raised: €83.5 million

• Total Raised: €83.5 million

• Funding Stage: Series A

• Funding Date: October 6, 2025

Trogenix Banks €80M Series A to Pioneer ‘Trojan Horse’ Cancer Cures

Edinburgh-based Trogenix secured €80 million in Series A funding to accelerate its “Trojan Horse” gene therapy platform for aggressive cancers. The round was led by IQ Capital, with participation from 4BIO Capital, Cancer Research Horizons, the Brain Tumor Investment Fund, Eli Lilly, LongeVC, Meltwind, and Calculus Capital.

A spinout from the University of Edinburgh, Trogenix is engineering synthetic super-enhancers — genetic payloads that selectively infiltrate tumor cells and trigger targeted immune destruction. Its lead program targets glioblastoma, one of the deadliest brain cancers, with clinical trials expected in early 2026. The financing marks one of Europe’s largest early-stage biotech raises this year, positioning Trogenix to deliver potentially curative, one-time treatments for cancers that resist current therapies.

Funding Details:

• Startup: Trogenix

• Investors: IQ Capital (lead), 4BIO Capital, Cancer Research Horizons, Brain Tumor Investment Fund, Eli Lilly, LongeVC, Meltwind, Calculus Capital

• Amount Raised: €80 million

• Total Raised: €80 million

• Funding Stage: Series A

• Funding Date: October 6, 2025

Filigran Raises $58M Series C to Boost Open-Source Cybersecurity Tools

Filigran, a Paris-based cybersecurity startup, closed a $58 million Series C funding round led by Eurazeo’s growth fund, with participation from Deutsche Telekom’s T.Capital, Accel, and Insight Partners. Founded in 2022, Filigran develops open-source threat intelligence platforms used by over 6,000 organizations—including U.S. federal agencies and the European Commission—to transform raw data into actionable security insights.

The company plans to use the funds to launch OpenGRC, a new cyber risk management solution, and further develop its AI-powered XTM One platform. Filigran is also expanding into strategic markets such as Saudi Arabia, Japan, and the United States, building on the momentum of its $35 million Series B round just a year ago.

Funding Details:

• Startup: Filigran

• Investors: Eurazeo (lead), Deutsche Telekom (T.Capital), Accel, Insight Partners

• Amount Raised: $58 million

• Total Raised: ~$93 million

• Funding Stage: Series C

• Funding Date: October 6, 2025

Harvey Snags €50M in Strategic Funding Round to Expand AI for Law

Harvey, the New York-based legaltech startup building AI tools for law firms, raised €50 million in a strategic funding round led by EQT Growth. The company previously raised over $800 million from Sequoia Capital and Kleiner Perkins, among others.

Harvey’s platform uses large language models tailored for legal tasks such as document review and regulatory compliance. It serves more than 700 enterprise customers across 58 countries, including 45 of the top 100 law firms globally. The funding will support further localization of its AI for different legal systems, deepen partnerships with LexisNexis and Wolters Kluwer, and expand its international presence.

Founded in 2022 by Weinberg and Gabe Pereyra, Harvey is part legal startup, part AI experiment gone right. Weinberg, a former associate at O’Melveny, partnered with Pereyra, a former DeepMind and Meta researcher. The idea came after the duo started playing with GPT-3 and saw how it could dramatically speed up legal workflows.

Funding Details:

• Startup: Harvey

• Investors: EQT Growth (lead); previously backed by Sequoia Capital, Kleiner Perkins, others

• Amount Raised: €50 million

• Total Raised: ~$850 million

• Funding Stage: Strategic round (Growth)

• Funding Date: October 6, 2025