Quanten-Start-ups

	Unternehmen	Modalität	Status	Ansatz
	IQM	superconducting	private	Europe's largest superconducting startup, selling on-premise systems to research centers and building co-design processors.
	Alice & Bob	superconducting	private	French startup building 'cat qubits'. Superconducting qubits designed to suppress bit-flip errors by construction, aiming to shrink error-correction overhead.
A	Alpine Quantum Technologies	trapped-ion	private	Austrian spin-out from Innsbruck's ion-trapping groups, selling compact rack-mounted trapped-ion systems.
U	Universal Quantum	trapped-ion	private	UK company pursuing large-scale trapped-ion machines linked by electric-field chip-to-chip connections rather than optics.
	QuEra	neutral-atom	private	Boston neutral-atom company from Harvard/MIT research, known for large programmable arrays and error-correction collaborations.
	Pasqal	neutral-atom	private	French neutral-atom company co-founded by a physics Nobel laureate, selling systems to HPC centers.
A	Atom Computing	neutral-atom	private	US neutral-atom company that announced large-array machines and partners with Microsoft on error-corrected demonstrations.
I	Infleqtion	neutral-atom	private	Neutral-atom computing plus a revenue-generating quantum-sensing business (formerly ColdQuanta).
p	planqc	neutral-atom	private	Munich startup from the Max Planck ecosystem building neutral-atom machines for European HPC centers.
	PsiQuantum	photonic	private	The best-funded private quantum company; skipping NISQ entirely to build a million-qubit fault-tolerant photonic machine using semiconductor fabs.
X	Xanadu	photonic	private	Canadian photonic company behind the PennyLane software library and photonic sampling demonstrations.
	Quandela	photonic	private	French photonic company building single-photon sources and cloud-accessible photonic processors.
O	ORCA Computing	photonic	private	UK photonic company using fiber-based memory to make photonic processing practical at room temperature.
D	Diraq	silicon-spin	private	Sydney spin-out commercializing decades of UNSW silicon-qubit research.
Q	Quantum Motion	silicon-spin	private	UK company building silicon spin qubits with standard CMOS processes.
S	Silicon Quantum Computing	silicon-spin	private	Australian company placing individual phosphorus atoms in silicon with atomic precision.
Q	Quobly	silicon-spin	private	French (CEA-Leti spin-off) silicon-spin company leveraging the Grenoble microelectronics ecosystem.
Q	Q-CTRL	software	private	Quantum control and error-suppression software that improves other people's hardware: plus a sensing division.
C	Classiq	software	private	High-level quantum algorithm design: describe the function, synthesize the circuit for any hardware.
	Multiverse Computing	software	private	Spanish company applying quantum and quantum-inspired algorithms (notably tensor networks) to finance and industry: including AI-model compression.

Verzeichnis-Fakten-Richtlinie: Die Zahlen in diesem Bereich ändern sich vierteljährlich, und falsche Zahlen zerstören Glaubwürdigkeit. Gründungsjahre, Hauptsitze, Finanzierungen und Gerätespezifikationen werden als „zu prüfen" angezeigt, bis sie mit Primärquellen abgeglichen wurden. Niemals eine Empfehlung für ein Unternehmen.