Oratomic

Neutral-atom fault-tolerant quantum computer

US$5.5B privateest. 2025oratomic.com (opens oratomic.com)Checked 11 Oct

The brief

Analyst view
  • Raised $300M in July 2026 and $475M in October 2026, $775M in total; valued around $5.5B after the second round.
  • Its March 2026 paper with Caltech estimates Shor's algorithm could run on about 10,000 reconfigurable atomic qubits.
  • Co-founder Manuel Endres's Caltech lab trapped a record 6,100-atom qubit array in 2025.

Technical approach

As reported
Qubits

Single atoms held by laser tweezers

Each qubit is one neutral atom held by a focused laser beam in vacuum. Thousands of identical atoms fit in one chamber, so scaling beats wiring chips.

Moving atoms

Rearrange qubits during a computation

Atoms can be shuttled across the array mid-calculation, so any qubit can sit next to any other. Dense error-correcting codes need that flexible wiring.

Codes

High-rate error correction

Instead of surface codes (about 4% of atoms do useful work), it uses codes that pack many logical qubits into few atoms: about 30% in its paper.

Primer