Morning VC Brief丨2025.11.07

Week45 Highlights丨Armis, Substrate, Daylight, Valthos, Tala Health, Giga, Reevo, Inception

Author

eric gu
November 07, 2025

Morning VC Brief is an expert daily curation of tech and venture news. Feel free to forward; the sign-up is here

Table of Contents

01. Venture News

1/ Cybersecurity Platform Armis Raises $435M Pre-IPO Round at $6.1B

  • Product: Cyber exposure management platform that provides continuous visibility, intelligence, and control across every asset and environment from ground to cloud, protecting organizations' full attack surface in real time

  • Highlight: Surpassed $300M ARR with 50%+ growth; Serves 40% of Fortune 100 (including 7 of Fortune 10)

  • Investors: Growth Equity at Goldman Sachs Alternatives (Lead), CapitalG, Evolution Equity Partners

  • Source

2/ Semiconductor Startup Substrate Raised $100M+ at $1B

  • Product: Compact lithography device for semiconductor manufacturing that aims to achieve results similar to ASML's advanced machines; plans to establish own semiconductor fabrication operations in the U.S.

  • Highlight: Developed proprietary lithography technology to challenge Dutch giant ASML's market dominance; targeting chip production at scale by 2028; in-house tooling development to reduce production costs

  • Investor: Founders Fund, General Catalyst, In-Q-Tel

  • Source

3/ AI-Powered Cybersecurity Platform Daylight Raised $33M Series A

  • Product: Managed Agentic Security Services (MASS) platform that delivers autonomous threat detection and response with AI-core augmented by PhD-level analysts, resolving threats instead of just escalating alerts

  • Highlight: Deployed by dozens of enterprises including The Motley Fool, Cresta, and McKinsey Investment Office; deployments completed in under 1 hour; up to 90% reduction in false positives

  • Investor: Craft Ventures (Lead), Bain Capital Ventures, Maple VC

  • Source

4/ AI-Powered Biodefense Platform Valthos Raised $30M Seed

  • Product: AI systems that rapidly characterize biological sequences and update medical countermeasures in real time, equipping government and life sciences experts to detect and neutralize biological threats at unprecedented speed

  • Highlights: Addresses one of AI leaders' identified largest threats - weaponization of biology outpacing medical advances; first platform capable of updating countermeasures to match threat speed

  • Investor: OpenAI Startup Fund, Lux Capital, Founders Fund

  • Source

5/ AI-Native Healthcare Platform Tala Health Raised $100M

  • Product: AI-native platform deploying AI agents across the full patient journey, offering 24/7 virtual care with seamless clinician referrals through vertically integrated approach to compress time from symptom to resolution

  • Highlight: Empowers clinicians across entire patient journey; aims to improve outcomes while lowering payer costs

  • Investor: Titan Holdings

  • Source

6/ AI-Powered Enterprise Operations Platform Giga Raised $61M Series A

  • Product: Enterprise operations platform with self-improving AI agents for customer support that automatically improve from 60% to 98% resolution; ultra-low latency voice experience across 99 languages

  • Highlight: Deployed by major enterprises including DoorDash; delivers time-to-value in under 2 weeks vs. months for competitors; self-improving agents that learn from usage data

  • Investor: Redpoint Ventures

  • Source

7/ AI-Powered Revenue Operating System Reevo Raised $80M

  • Product: First vertically integrated, end-to-end GTM platform with AI at its core; unifies lead discovery, pipeline building, multi-channel outreach, calling, and CRM in one workspace with automatic activity logging, deal tracking, and AI-powered meeting prep and follow-up

  • Highlight: Eliminates fragmented GTM tool stacks that waste selling time; automates data entry and pipeline updates to prevent revenue leakage and compliance risks

  • Investor: Khosla Ventures, Kleiner Perkins

  • Source

8/ AI Startup Inception Raises $50M Seed Round for Diffusion-Based Code and Text Models

  • Product: Diffusion-based AI models for code and text generation, applying image generation techniques (like Stable Diffusion) to software development

  • Highlight: Achieves 1,000+ tokens per second processing speed (significantly faster than autoregressive models)

  • Investor: Menlo Ventures (Lead), Mayfield, Innovation Endeavors, Microsoft M12, Snowflake Ventures, NVentures

  • Source