Quantinuum funding history

3 disclosed rounds · sourced from the FOBI roster

Total raised

$4.0B

Rounds tracked

Latest valuation

$15.6B

For subscribers

Per-round date, stage, amount, lead investors, and the full valuation curve.

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Date	Stage	Amount	Valuation	Lead investors
2026-06-04	IPO	$1.4B	$14.3B	—
2025-09-04	Series B	$600M	$10B	Quanta Computer, NVentures
2024-01-16	Series A	$300M	$5B	JPMorgan Chase