कंपनी निर्देशिका

	कंपनी	माध्यम (मोडैलिटी)	स्थिति	तरीका
	IonQ	trapped-ion	public IONQ	The first pure-play quantum company to list publicly; trapped-ion systems available through all major clouds.
Q	Quantinuum	trapped-ion	subsidiary majority-owned by Honeywell (HON)	Formed from Honeywell Quantum Solutions and Cambridge Quantum; trapped-ion hardware plus a large software arm, with prominent logical-qubit results.
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.

Directory facts policy: this field's numbers change quarterly, and wrong numbers destroy credibility. Founding years, headquarters, funding and device specs render as "to verify" until checked against primary sources. Never a recommendation of any company.