Morning VC Brief丨2025.04.23

Week17 Highlights丨Supabase, ManyChat, EXOWATT, Exaforce, Goodfire, Revel, Spur, Doctronic

Author

eric gu
April 23, 2025

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

TL;DR

01. Venture News

1/ Open Source Database Supabase raised $200M Series D at $2B

  • Product: Firebase alternative combining PostgreSQL with authentication, APIs, and AI tools for backend development

  • Highlight: 1.7M+ developers; 81K GitHub stars; key infrastructure for "vibe coding" trend and YC startups

  • Investor: Accel(Lead), Coatue, Felicis, Y Combinator

  • Source

2/ Chatbot Platform ManyChat raised $140M Series B

  • Product: AI-powered cross-platform chatbot automation (Instagram/TikTok/WhatsApp) with agentic AI capabilities

  • Highlight: Processes billions of messages annually; serves 1M+ businesses across 170+ countries

  • Investor: Summit Partners(Lead)

  • Source

3/ Modular Energy Solution EXOWATT raised $70M Series A

  • Product: Modular solar solution P3 stores solar energy as heat for 24-hour power supply, targeting data centers

  • Highlight: 90GWh demand backlog; supports AI/data center energy needs under U.S. Project Stargate

  • Investor: Felicis(Lead), Thrive Capital, a16z, Sam Altman

  • Source

4/ Cybersecurity Agent Startup Exaforce raised $75M Series A

  • Product: Agentic SOC Platform using multi-model AI (semantic/behavioral/knowledge models) for threat detection and cloud security automation

  • Highlight: 60X faster threat analysis; integrates runtime event analysis with LLM-powered threat hunting

  • Investor: Khosla Ventures(Lead), Mayfield Fund(Lead)

  • Source

5/ AI Interpretability Startup Goodfire raised $50M Series A

  • Product: Ember platform applies mechanistic interpretability to decode neural networks, enabling real-time AI model control and feature analysis

  • Highlight: Partners with Arc Institute on DNA models

  • Investor: Menlo Ventures(Lead), Lightspeed Venture Partners, Anthropic

  • Source

6/ Industrial Software Startup Revel raised $30M Series A

  • Product: Full-stack hardware control platform with domain-specific language for aerospace/energy systems, cutting dev time by 10X

  • Highlight: First customer Impulse Space (engine testing); founded by SpaceX veterans

  • Investor: Thrive Capital(Lead), Felicis, Abstract Ventures

  • Source

7/ AI Web QA Testing Agent Spur raised $4.5M Seed

  • Product: Natural language-driven AI agents for automated website QA testing (e.g., e-commerce checkout forms)

  • Highlight: YC S24 alum; serves Y Combinator admissions platform

  • Investor: First Round Capital(Lead), Conviction VC, Y Combinator

  • Source

8/ AI Doctor Startup Doctronic raised $5M Seed

  • Product: Multi-agent AI platform combining LLMs (OpenAI/Anthropic) with human MDs for symptom analysis and $39 Telehealth visits

  • Highlight: 50K weekly users; 24/7 video consults in 50 states

  • Investor: Union Square Ventures(Lead)

  • Source