Rajesh Venkatesh, founder of Aether

$115M Series A

Aether

Aether Raises $115M Series A Co-Led by Spark Capital for Hybrid Quantum-Agentic Simulation at Utility Scale

  • Quantum
  • Hybrid Compute
  • Agentic Simulation

Fault-tolerant quantum-classical agent runtimes that orchestrate multi-day molecular and ML simulations with error-corrected neutral-atom backends and full experiment audit trails.

Rajesh Venkatesh · ex-Google Quantum AI

“Agents that cannot sit on fault-tolerant substrates are still toys. We fuse both stacks until chemistry problems stop waiting in queues.”

— Founder

“Utility-scale quantum plus agentic orchestration is the rare deep-tech pair that rewrites timelines—Aether is that wedge.”

— Alex Finkelstein · Spark Capital