Top 10 Startup and Tech Funding News – October 29, 2025
Nickie Louise
Posted On October 29, 2025
It’s Wednesday, October 29, 2025, and we’re back with the top startup and tech funding news stories making waves today. From billion-dollar AI rounds to breakthroughs in biotech, climate tech, and fintech infrastructure, investors continue to back transformative ideas across all stages — from early seed rounds to late-stage giants.
Today’s highlights feature Harvey’s $150 million round at an $8 billion valuation, reaffirming the legal-tech startup’s place among AI’s fastest-growing players, and Fireworks AI’s $250 million Series C, which brings the healthcare AI pioneer to a $4 billion valuation. Meanwhile, early-stage standouts like Mem0, Valthos, and Sweatpals drew strong backing from top-tier VCs eager to shape the next wave of AI memory, biodefense, and social fitness platforms.
On the sustainability front, Uluu raised AU$16 million to scale its seaweed-based plastic alternative, while India’s Tsuyo Manufacturing secured ₹40 crore to ramp up EV supply hardware. Fintech and crypto infrastructure also saw heavy investor activity, with Hercle, Aboon, and Uptiq.ai raising fresh capital to modernize digital payments and banking AI infrastructure.
Funding Highlights
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Harvey raised $150 million at an $8 billion valuation to expand its AI legal platform.
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Fireworks AI secured $250 million in Series C funding to scale healthcare genomics.
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Mem0, Valthos, and Sweatpals collectively raised $66 million to accelerate innovation in AI memory, biodefense, and fitness tech.
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Uluu landed AU$16 million to advance its seaweed-based plastic production.
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Hercle raised $60 million to expand institutional stablecoin infrastructure.
Investor Activity
The day’s financings drew participation from Andreessen Horowitz, Lightspeed Venture Partners, Bain Capital Ventures, F-Prime Capital, a16z Speedrun, Lux Capital, and ACME Capital, among others — highlighting strong cross-sector confidence in AI, climate resilience, and fintech. Global capital continues to flow into technologies reshaping industries from law and healthcare to energy and sustainability.
Here’s the full breakdown. Until tomorrow, have a great evening.
Harvey Raises $150M in Funding at $8B Valuation for AI Legal Platform
Harvey, a startup building generative AI tools for law firms, announced a $150 million financing round that values the company at about $8 billion. This is the third major funding round for the company in 2025, following two earlier $300M rounds. The fresh capital was led by Silicon Valley heavyweight Andreessen Horowitz, which has been an early champion of AI-driven startups.
Harvey’s platform uses machine learning and large language models to automate legal work – from drafting contracts to due diligence – promising to dramatically boost productivity for lawyers. With this new infusion, Harvey aims to accelerate product development and expand its enterprise sales team as it scales its AI-powered legal assistant for global markets.
Funding Details:
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Startup: Harvey (legal AI software)
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Investors: Andreessen Horowitz (lead)
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Amount Raised: $150 million
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Total Raised: ≈$800 million (before this round)
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Funding Stage: Series F (growth equity)
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Funding Date: October 29, 2025
Syllo Raises $30M Growth Funding Round for Litigation AI
New York-based Syllo announced a $30 million growth funding round to expand its AI-driven litigation workspace. The financing was backed by longtime legal-tech investors, with Venrock and Two Seas Capital leading the round. Syllo’s platform uses artificial intelligence to streamline complex legal workflows – for example, it automates document review and evidence organization for litigation teams.
The company, founded by former litigators and engineers, will use the proceeds to accelerate product innovation and scale its engineering team to meet rising demand from law firms and corporate legal departments. The cash injection will also fund go-to-market expansion as Syllo moves toward broader enterprise deployments of its “Agentic AI” litigation assistant.
Funding Details:
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Startup: Syllo (AI-powered litigation platform)
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Investors: Venrock (lead), Two Seas Capital, and strategic angel investors
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Amount Raised: $30 million
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Total Raised: ~$30 million (new growth round)
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Funding Stage: Growth equity
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Funding Date: October 29, 2025
TestSprite Raises $6.7M in Seed Funding for AI Code Testing
Seattle-based TestSprite closed a $6.7 million seed round to fund its AI-driven code testing platform. The round was led by Trilogy Equity Partners, with participation from Techstars, Jinqiu Capital, MiraclePlus, Hat-Trick Capital, Baidu Ventures, and EdgeCase Capital. TestSprite’s “agentic” testing tools automate the generation and execution of software tests by working inside developers’ AI-driven code editors. This allows AI-generated code to be continuously validated and iterated, catching errors early.
The company says demand for automated testing spiked 483% this year, driven by organizations adopting AI to write code. TestSprite will use the funding to deepen its AI test-generation capabilities and scale its infrastructure to support thousands of developers. This brings the company’s total funding to about $8.1 million.
Funding Details:
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Startup: TestSprite (AI code testing platform)
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Investors: Trilogy Equity Partners (lead), Techstars, Jinqiu Capital, MiraclePlus, Hat-Trick Capital, Baidu Ventures, EdgeCase Capital
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Amount Raised: $6.7 million
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Total Raised: $8.1 million
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Funding Stage: Seed
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Funding Date: October 29, 2025
Uluu Raises AU$16M in Series A Funding for Seaweed-Based Plastic Alternative
Perth-based Uluu, which makes a sustainable plastic alternative from seaweed, has secured AU$16 million (about US$10.5M) in a Series A round. The financing was led by German growth investor Burda Principal Investments, with support from Main Sequence, Novel Investments, Startmate, and a group of impact investors including Fairground, Trinity, and entrepreneur Karlie Kloss.
Uluu’s bio-polymer is designed to look and function like conventional plastic but can be home-composted and marine-biodegraded, avoiding microplastics. The new capital will build a commercial-scale demonstration plant in Western Australia, enabling Uluu to expand from pilot production into industrial volumes. This funding forms a base for an eventual full-scale facility and supports Uluu’s mission to replace fossil-based plastics with climate-positive alternatives.
Funding Details:
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Startup: Uluu (seaweed-derived plastic alternative)
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Investors: Burda Principal Investments (lead), Main Sequence, Novel Investments, Startmate, Fairground, Trinity Ventures, and Karlie Kloss
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Amount Raised: AU$16 million (~US$10.5M)
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Total Raised: ~AU$24 million (including prior $8M seed)
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Funding Stage: Series A
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Funding Date: October 29, 2025
Weave Bio Secures $20M in Series A Funding for Genomics Platform
Weave Bio, a San Francisco startup building an AI-driven genomics platform, announced a $20 million Series A round. The round was led by Union Square Ventures, with participation from Innovation Endeavors, Magnetic Capital, Character Ventures, TMV, and Serrado Ventures.
Weave Bio’s technology analyzes DNA and RNA sequencing data using machine learning to help scientists identify biomarkers and disease targets. The funds will grow the company’s research team and expand commercial deployments, such as partnerships with biopharma companies. This round brings Weave Bio’s total funding to $36 million.
Funding Details:
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Startup: Weave Bio (AI genomics platform)
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Investors: USVP (lead), Innovation Endeavors, Magnetic Capital, Character Ventures, TMV Capital, Serrado Ventures
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Amount Raised: $20 million
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Total Raised: $36 million
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Funding Stage: Series A
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Funding Date: October 29, 2025
PoobahAI Raises $2M in Seed Funding to Build Blockchain Networks
PoobahAI, a startup developing blockchain-as-a-service tools, announced a $2 million seed round. The funding was led by FourTwoAlpha Ltd., an Asia-focused AI investment firm. PoobahAI’s technology lets organizations rapidly deploy custom blockchain networks using AI.
The company says this “Blockchain-as-a-Service” tool can help non-technical teams launch enterprise-grade distributed ledgers, rather than relying on public chains. The seed capital will be used to further develop PoobahAI’s platform and onboard early enterprise users.
Funding Details:
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Startup: PoobahAI (AI-powered blockchain infrastructure)
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Investors: FourTwoAlpha Ltd. (lead)
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Amount Raised: $2 million
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Total Raised: $2 million (first round)
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Funding Stage: Seed
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Funding Date: October 29, 2025
Tsuyo Manufacturing Raises ₹40 Cr Pre-Series A for EV Supply Hardware
Tsuyo Manufacturing, an Indian startup making parts for electric vehicles, secured ₹40 crore (about $4.5M) in pre-Series A funding. The round was led by Avaana Capital, a Mumbai-based VC focused on deep tech and climate, and included existing investor ADB Ventures.
Tsuyo produces lightweight aluminum or composite components for EVs and batteries, aiming to improve efficiency and performance. This funding will boost production and enable partnerships with vehicle makers.
Funding Details:
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Startup: Tsuyo Manufacturing (EV powertrain & battery components)
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Investors: Avaana Capital (lead)
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Amount Raised: ₹40 crore (~$4.5 million)
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Total Raised: ₹40 crore (first major round)
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Funding Stage: Pre-Series A
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Funding Date: October 29, 2025
Hercle Raises $60M in Funding for Institutional Stablecoin Infrastructure
Hercle, a fintech startup building institutional stablecoin payment infrastructure, announced $60 million in new financing. This round includes a $10 million equity investment led by F-Prime Capital, along with a $50 million credit line for the company. F-Prime joined existing investors Fulgur Ventures and Exponential Science in backing the company.
Hercle’s platform enables banks and payment providers to settle transactions using USDC and other stablecoins, streamlining cross-border payments. The fresh funds will support Hercle’s global expansion and product development, including hiring and regulatory compliance efforts, positioning it to serve large institutions moving into digital assets.
Funding Details:
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Startup: Hercle (stablecoin payments infrastructure)
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Investors: F-Prime Capital (lead), Fulgur Ventures, Exponential Science
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Amount Raised: $60 million (including $10M equity, $50M credit)
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Total Raised: $60 million (including credit facility)
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Funding Stage: Equity financing & debt facility
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Funding Date: October 29, 2025
Aboon Closes $17.5M in Seed Funding to Accelerate Crypto Asset Security
Aboon, a startup offering self-custody security for crypto assets, announced a $17.5 million seed round. The round was led by Bain Capital Ventures, with participation from Altai Ventures, Runyon Ventures, Edward Jones Ventures, Outpost Ventures, and EJF Ventures.
Aboon’s platform allows users to securely store and transfer digital assets without private keys – instead using a smartphone app linked to its hardware wallet as an authentication layer. The funding will accelerate product development and user acquisition in the decentralized finance market, where secure key management remains a critical challenge.
Funding Details:
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Startup: Aboon (crypto asset security)
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Investors: Bain Capital Ventures (lead), Altai Ventures, Runyon Ventures, Edward Jones Ventures, Outpost Ventures, EJF Ventures
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Amount Raised: $17.5 million
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Total Raised: $17.5 million
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Funding Stage: Seed
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Funding Date: October 29, 2025
Fireworks AI Raises $250M in Series C Funding at $4B Valuation
Fireworks AI, a healthcare AI company focused on newborn genomics, secured $250 million in its Series C round. The financing, led by Lightspeed Venture Partners, Index Ventures, and Evantic Capital, also included participation from Sequoia Capital and other existing backers. This round values Fireworks at about $4 billion.
Fireworks’ software analyzes infants’ genomes to help diagnose rare diseases more quickly, using AI to interpret complex genetic data. The massive new funding will fuel global expansion and clinical trials, and will drive the development of additional AI diagnostic tools for pediatric healthcare. With this round, Fireworks’ total funding to date reaches approximately $327 million.
Funding Details:
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Startup: Fireworks AI (pediatric genomics AI)
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Investors: Lightspeed Ventures (lead), Index Ventures, Evantic Capital, Sequoia Capital
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Amount Raised: $250 million
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Total Raised: $327 million
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Funding Stage: Series C
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Funding Date: October 29, 2025
Valthos Raises $30M in Seed Funding to Build AI Biodefense Tools
Biodefense startup Valthos announced a $30 million seed round led by the OpenAI Startup Fund, Lux Capital, and Founders Fund. Valthos is developing AI systems to rapidly identify new biological threats and help design medical countermeasures. Its machine learning models analyze genetic sequences of pathogens to predict how they might spread or cause harm.
The new capital will be used to scale Valthos’s cloud infrastructure and support collaborations with government and biotech partners. The funding underscores a growing focus on advanced AI tools for national security and public health.
Funding Details:
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Startup: Valthos (AI biodefense platform)
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Investors: OpenAI Startup Fund (lead), Lux Capital, Founders Fund
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Amount Raised: $30 million
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Total Raised: $30 million
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Funding Stage: Seed
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Funding Date: October 29, 2025
Mem0 Raises $24M in Funding for AI Agent Memory Platform
Mem0, a San Francisco startup building memory infrastructure for AI agents, announced $24 million in funding. The financing, which includes both seed and Series A capital, was led by Basis Set Ventures and Kindred Ventures, with participation from GitHub Fund and Peak XV Partners.
Mem0’s software provides a “persistent memory” layer so AI applications can store and recall data over time, akin to a knowledge base. This enables large language model applications to remember user context and preferences between sessions. The funds will expand Mem0’s engineering team and integrations, positioning its memory solution as a core component for next-generation AI assistants.
Funding Details:
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Startup: Mem0 (AI agent memory infrastructure)
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Investors: Basis Set Ventures, Kindred Ventures (leads), GitHub Fund, Peak XV Partners
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Amount Raised: $24 million
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Total Raised: $24 million
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Funding Stage: Seed & Series A
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Funding Date: October 29, 2025
CustoMED Raises $6M in Seed Funding for AI Surgical Implants
CustoMED, a healthtech startup spun out of Israel’s Sheba Medical Center, closed a $6 million seed round. The round was led by Longevity Venture Partners, and included Varana Capital, Flag Capital, and an orthopedic device manufacturer, as well as participation from the Israel Innovation Authority and Wix CEO Avishai Abrahami.
CustoMED’s cloud software uses AI to generate patient-specific surgical guides and implants for orthopedic procedures. By turning surgeon plans into custom 3D-printed tools in minutes instead of weeks, CustoMED aims to improve outcomes and reduce costs. The new funding will support U.S. and EU regulatory approvals, expand to additional types of orthopedic surgeries, and grow its on-demand manufacturing network.
Funding Details:
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Startup: CustoMED (AI surgical implant platform)
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Investors: Longevity Venture Partners (lead), Varana Capital, Flag Capital, Israel Innovation Authority, a major orthopedic implant company, Avishai Abrahami
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Amount Raised: $6 million
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Total Raised: $6 million
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Funding Stage: Seed
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Funding Date: October 29, 2025
Sweatpals Raises $12M in Seed Funding to Build Social Fitness Platform
Sweatpals, an Austin-based community fitness platform, raised a $12 million seed round. The round was led by Patron Capital, a16z’s growth arm (Speedrun), and HartBeat Ventures (Kevin Hart’s fund). Other backers include Max Mullen (Instacart co-founder), WndrCo, Antler, Pear VC, and Deb Liu (Ancestry CEO).
Sweatpals connects users through “daylife” fitness events, replacing traditional nightlife with group workouts and wellness gatherings. The company plans to use the funds to grow its community and help gyms and hosts offer more social fitness experiences. The investment brings Sweatpals’ total funding to about $17.2 million.
Funding Details:
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Startup: Sweatpals (social fitness platform)
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Investors: Patron (lead), a16z Speedrun, HartBeat Ventures, with Max Mullen, WndrCo, Antler, Pear VC, and Deb Liu
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Amount Raised: $12 million
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Total Raised: $17.2 million
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Funding Stage: Seed
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Funding Date: October 29, 2025
Arya Health Closes $18.2M in Series A Funding for Home Care AI
Arya Health, a digital health startup focused on post-acute care, closed an $18.2 million Series A round. The round was led by ACME Capital, with Ridge Ventures, Twelve Below, executives from OpenAI, and leading home health providers participating. Arya’s AI agents automate administrative tasks for home care agencies – such as scheduling caregivers, managing compliance, and streamlining hiring – claiming to cut back-office work by up to 70%.
The new capital will fund expansion into additional care use cases and hiring, as Arya scales to meet surging demand from healthcare providers. This brings Arya’s total funding to $25 million.
Funding Details:
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Startup: Arya Health (AI for home health administration)
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Investors: ACME Capital (lead), Ridge Ventures, Twelve Below, OpenAI executive backers, and post-acute care providers
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Amount Raised: $18.2 million
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Total Raised: $25 million
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Funding Stage: Series A
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Funding Date: October 29, 2025
Polygraf AI Secures $9.5M in Seed Funding for AI Security Platform
Polygraf AI, an Austin startup securing enterprise AI, closed a $9.5 million seed round. The round was led by Allegis Capital, with Alumni Ventures, DataPower VC, Domino Ventures, and existing investors participating. Polygraf uses proprietary small-language models that can be run on-premise to help organizations detect and prevent AI-driven threats like data leakage and fraudulent deepfakes.
The fresh capital will accelerate product development and enterprise sales as companies seek solutions to secure their AI deployments.
Funding Details:
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Startup: Polygraf AI (enterprise AI security)
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Investors: Allegis Capital (lead), Alumni Ventures, DataPower VC, Domino Ventures
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Amount Raised: $9.5 million
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Total Raised: $9.5 million
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Funding Stage: Seed
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Funding Date: October 29, 2025
Uptiq.ai Raises $12M in Funding for Banking AI Infrastructure
Uptiq.ai, a startup building AI infrastructure for financial institutions, announced a $12 million funding round. The round was led by Silverton Partners, with participation from Live Oak Venture Partners, Tau Ventures, First Capital, and Green Visor Capital.
Uptiq.ai’s platform, called Qore, provides an enterprise-grade “foundation” for banks and fintechs to build and manage AI applications in a compliant way. The funding will expand Uptiq.ai’s sales and engineering teams to drive adoption of its AI platform across banks, credit unions, and wealth managers.
Funding Details:
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Startup: Uptiq.ai (AI platform for banking)
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Investors: Silverton Partners (lead), Live Oak Venture Partners, Tau Ventures, First Capital, Green Visor Capital
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Amount Raised: $12 million
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Total Raised: $12 million
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Funding Stage: Seed
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Funding Date: October 29, 2025
WideField Security Raises $11.3M in Series A Funding for Identity Protection
WideField Security, a cybersecurity startup spun out of Netskope, closed an $11.3 million Series A round. The round was led by Crosspoint Capital, with existing backer Engineering Capital also participating. WideField offers a post-authentication security platform that monitors user and machine identities after login – catching threats that bypass traditional authentication controls.
The new funds will accelerate WideField’s product development and go-to-market efforts. By shifting focus beyond login, WideField aims to help enterprises plug a critical gap in their identity security strategy.
Funding Details:
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Startup: WideField Security (post-authentication identity security)
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Investors: Crosspoint Capital (lead), Engineering Capital
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Amount Raised: $11.3 million
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Total Raised: $11.3 million
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Funding Stage: Series A
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Funding Date: October 29, 2025
Tech Funding Summary
| Startup | Investors (Lead & Notable) | Amount Raised | Total Raised | Funding Stage | Funding Date |
|---|---|---|---|---|---|
| Harvey | Andreessen Horowitz (lead) | $150M | ~$800M | Series F (AI Legal) | Oct 29, 2025 |
| Syllo | Venrock, Two Seas Capital | $30M | ~$30M | Growth equity | Oct 29, 2025 |
| TestSprite | Trilogy Equity Partners (lead), Techstars, Jinqiu, MiraclePlus, Hat-Trick, Baidu, EdgeCase | $6.7M | $8.1M | Seed | Oct 29, 2025 |
| Uluu | Burda Principal Investments (lead), Main Sequence, Novel Investments, Startmate, Fairground, Trinity, Karlie Kloss | AU$16M | ~AU$24M | Series A | Oct 29, 2025 |
| Weave Bio | USVP (lead), Innovation Endeavors, Magnetic, Character Ventures, TMV Capital, Serrado Ventures | $20M | $36M | Series A | Oct 29, 2025 |
| PoobahAI | FourTwoAlpha Ltd. (lead) | $2M | $2M | Seed | Oct 29, 2025 |
| Tsuyo Manufacturing | Avaana Capital (lead) | ₹40 Cr (~$4.5M) | ₹40 Cr | Pre-Series A | Oct 29, 2025 |
| Hercle | F-Prime Capital (lead), Fulgur Ventures, Exponential Science | $60M | $60M | Equity & debt | Oct 29, 2025 |
| Aboon | Bain Capital Ventures (lead), Altai, Runyon, Edward Jones, Outpost, EJF | $17.5M | $17.5M | Seed | Oct 29, 2025 |
| Fireworks AI | Lightspeed (lead), Index, Evantic, Sequoia | $250M | $327M | Series C | Oct 29, 2025 |
| Valthos | OpenAI Startup Fund (lead), Lux Capital, Founders Fund | $30M | $30M | Seed | Oct 29, 2025 |
| Mem0 | Basis Set Ventures, Kindred Ventures (leads), GitHub Fund, Peak XV | $24M | $24M | Seed & Series A | Oct 29, 2025 |
| CustoMED | Longevity Venture Partners (lead), Varana, Flag, Israel Innovation Authority, Orthopedic OEM, Avishai Abrahami | $6M | $6M | Seed | Oct 29, 2025 |
| Sweatpals | Patron, a16z Speedrun, HartBeat Ventures (leads), Max Mullen, WndrCo, Antler, Pear VC, Deb Liu | $12M | $17.2M | Seed | Oct 29, 2025 |
| Arya Health | ACME Capital (lead), Ridge Ventures, Twelve Below, OpenAI execs, healthcare providers | $18.2M | $25M | Series A | Oct 29, 2025 |
| Polygraf AI | Allegis Capital (lead), Alumni Ventures, DataPower VC, Domino Ventures | $9.5M | $9.5M | Seed | Oct 29, 2025 |
| Uptiq.ai | Silverton Partners (lead), Live Oak Venture Partners, Tau Ventures, First Capital, Green Visor | $12M | $12M | Seed | Oct 29, 2025 |
| WideField Security | Crosspoint Capital (lead), Engineering Capital | $11.3M | $11.3M | Series A | Oct 29, 2025 |
Each startup’s funding details are drawn from company announcements and news reports on October 29, 2025. These investments span a wide range of sectors — from biotech and AI to clean technology and fintech — underscoring the continued momentum in global venture funding for innovative startups. All figures and investors are reported as of the funding announcements on this date. The Tech Funding Summary table above consolidates the lead investors, funding amounts, cumulative totals, stages, and announcement date for quick reference.
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