73 Strings Acquires Callisto

September 24, 2026

73 Strings acquired Callisto, a Paris-based AI and data software company that automates private-markets workflows such as due diligence, data-room analysis, and investment documentation. Callisto’s technology and engineering team will be integrated into 73 Strings’ platform to expand its agentic AI capabilities and investment workflows.

Buyers
73 Strings
Targets
Callisto
Location
France
Transaction Type
Buyout

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