Joseph Fitzsimons

Founder at

Horizon Quantum Computing Pte Ltd.

Net worth: 294 M $ as of 30/09/2026

43 year

Technology Services

Profile

Joseph F.
Fitzsimons is the founder of Horizon Quantum Computing Pte Ltd., founded in 2018, where the title held is Chief Executive Officer & Director.
Dr. Fitzsimons currently holds the position of Chairman & Chief Executive Officer at Horizon Quantum Holdings Ltd., starting in 2026.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
100%	14/04/2026	1,97,44,585 ( 100% )	293 M $	30/09/2026
0.03%	12/09/2026	10,883 ( 0.03% )	161 721 $	30/09/2026

Joseph Fitzsimons active positions

Companies	Position	Start
Horizon Quantum Computing Pte Ltd. Horizon Quantum Computing Pte Ltd. Information Technology ServicesTechnology Services Develops software tools for quantum computers	Founder	01/01/2018

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Private companies	1
Horizon Quantum Computing Pte Ltd. Horizon Quantum Computing Pte Ltd. Information Technology ServicesTechnology Services Develops software tools for quantum computers	Technology Services