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Honeywell-Backed Quantinuum Raises $1.68 Billion in Upsized IPO

Bloomberg Markets · Jun 4, 2026, 12:08 AM · Also reported by 4 other sources

Quantinuum Inc., a quantum computing company backed by Honeywell International Inc., raised $1.68 billion in its upsized US initial public offering, demonstrating growing investor enthusiasm for the emerging technology.

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Investing.com Honeywell-backed Quantinuum raises $1.68 bln in upsized U.S. IPO Investing.com Honeywell’s Quantinuum raises $1.68 billion in US IPO as quantum computing heats up Investing.com Advent, ADIA-backed gas engine maker Innio raises $2.43 billion in US IPO MarketWatch Quantinuum raises $1.68 billion in IPO that seeks to give quantum computing more street cred

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Honeywell-Backed Quantinuum Raises $1.68 Billion in Upsized IPO

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