73 Strings Acquires Callisto to Revolutionize AI-Powered Private Market Valuations
By Lauren Towner · 30 September 2026

Quick Summary
73 Strings has acquired Callisto to integrate agentic AI pipelines into its valuation and portfolio intelligence platform. This strategic move allows private capital managers to automate complex financial workflows, including due diligence and investment documentation, while ensuring enterprise-grade auditability for firms managing trillions in assets.
How Does 73 Strings Automate Private Market Workflows?
73 Strings solves the challenge of manual data entry and fragmented analysis by leveraging Callisto’s proprietary agentic orchestration. This technology enables AI agents to interact directly with complex Excel files, data rooms, and large internal databases to prepare investment documentation. By providing a structured data environment, the platform allows General Partners to scale their operations and accelerate due diligence questionnaires (DDQs) without sacrificing accuracy.
- Automated data extraction from unstructured financial documents.
- Deterministic valuation engines that preserve human judgement.
- Traceable calculation paths for full audit compliance.
What Results Does Agentic AI Deliver for Asset Managers?
The integration of Callisto’s infrastructure into the 73 Strings ecosystem transforms portfolio analysis from historical reporting to predictive simulation modeling. Clients can now model how fund-level outcomes behave under changing macroeconomic assumptions, receiving auditable answers in minutes rather than weeks. This speed is essential for firms representing $20 trillion AUM, including nine of the ten largest private-capital firms globally, who require real-time portfolio intelligence to navigate volatile markets.
- $20 trillion AUM supported by the combined platform.
- 90% reduction in time for complex valuation simulations.
- Enterprise-grade rigor applied to AI-driven workflows.
How Will This Acquisition Scale Private Capital Infrastructure?
By appointing Callisto founders Charles Farhat and William Profit as Co-Heads of AI Product, 73 Strings is doubling down on its ambition to be the core infrastructure for private capital. The move facilitates the transition to agent-addressable platforms built on the Model Context Protocol (MCP). This digital layer is critical as private markets mature and begin to open up to retail investor participation, requiring a single, structured source of truth for all asset data.
FF NEWS TAKE:
This acquisition is a definitive power move. 73 Strings isn't just adding another feature; they are securing the foundational AI talent and infrastructure needed to dominate the private equity tech stack. By moving from simple reporting to agentic automation, they are solving the industry's biggest bottleneck: the manual processing of private asset data. This absolutely moves the needle for institutional transparency and operational efficiency.
Companies in this story: 73 Strings, Calisto
People in this story: William Profit, Charles Farhat, Matt Storey, Yann Magnan, Jade Mandel