Lilac alternatives

TL;DR: The closest YC-backed alternatives to <strong>Lilac</strong> are other Y Combinator B2B companies, especially from the Summer 2025 batch. Below are 20 ranked competitors with batch, status, and team size.

Y Combinator-backed B2B companies similar to Lilac (YC Summer 2025).

Last verified:

  • Metis YC Summer 2025 · Acquired · 13 people — Infrastructure to build reliable agents
  • GETASAP YC Summer 2025 · Active · 30 people — Distribution at the Speed of Compute
  • F2 YC Summer 2025 · Active · 15 people — The AI platform for private markets investors
  • Vulcan Technologies YC Summer 2025 · Active · 14 people — AI for every law, regulation, and court case
  • Idler YC Summer 2025 · Active · 13 people — Reinforcement learning environments.
  • Fleetline YC Summer 2025 · Active · 11 people — Optimizing fleet planning with data driven algorithms
  • AgentMail YC Summer 2025 · Active · 10 people — Email Inboxes for AI Agents
  • Dedalus Labs YC Summer 2025 · Active · 10 people — Compute substrate for AI agents
  • Reacher YC Summer 2025 · Active · 10 people — We automate creator marketing for the world's largest brands
  • Magnetic YC Summer 2025 · Active · 10 people — AI Tax Preparer for CPA firms
  • Cactus YC Summer 2025 · Active · 8 people — Low-latency AI engine for mobile devices & wearables
  • Lanesurf YC Summer 2025 · Active · 8 people — Book any load in 10 minutes
  • Certus AI YC Summer 2025 · Active · 8 people — Replacing the restaurant phone line with Voice AI
  • The Prompting Company YC Summer 2025 · Active · 7 people — We help products get discovered & used by AI agents.
  • Finto YC Summer 2025 · Active · 7 people — AI accounting for enterprise finance teams
  • Interfere YC Summer 2025 · Active · 7 people — Production visibility for teams that ship fast
  • truthsystems YC Summer 2025 · Active · 6 people — Automatically blocking risky behavior with real-time governance agents
  • Knowlify YC Summer 2025 · Active · 6 people — The AI Explainer Video Maker
  • Humoniq YC Summer 2025 · Active · 6 people — AI-Native BPO for travel & transport
  • Acrely YC Summer 2025 · Active · 6 people — Enterprise Voice Agents

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