YC Spring 2025 Infrastructure Startups

9 Y Combinator Infrastructure companies from the Spring 2025 batch — with team size, status, and one-liner for every startup.

Total
9
Active
9
Acquired
0
Shut down
0

Y Combinator's Spring 2025 batch included 9 Infrastructure startups. Of these, 9 remain active, 0 have been acquired, and 0 have shut down.

  • PgDog (3 people) — Scaling engine for PostgreSQL
  • Sixtyfour (12 people) — Intelligence Infrastructure on People and Entities
  • Kairos (2 people) — Specialized AI for Critical Industries
  • Airweave (7 people) — The open-source context retrieval layer for agents
  • Aravolta (4 people) — Software to monitor, control, and optimize data centers.
  • RunRL (2 people) — Reinforcement learning as a service
  • Morphik (2 people) — Open-source multimodal search for AI apps
  • ParaQuery (1 people) — Managed GPU-accelerated Spark + SQL at 2x speed and half the cost
  • Naïve (8 people) — Unified Agent Infrastructure

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