Goldman Sachs Alternatives-backed 73 Strings acquires Paris-based Callisto to expand AI for private markets

73 Strings, an AI-powered valuation and portfolio intelligence platform for alternative asset managers, has acquired Callisto, a Paris-based fintech company. Callisto's AI data technology automates workflows including due diligence, data room analysis, investment documentation and due diligence questionnaires.

Callisto's team will accelerate 73 Strings' Valuation, Extraction and Monitoring platforms into agent-addressable products built on the Model Context Protocol. Callisto's core AI infrastructure is to be integrated into the 73 Intelligence platform in the coming months. Callisto co-founders Charles Farhat and William Profit become Co-Heads of AI Product, reporting to Chief Product Officer Matt Storey.

73 Strings was previously backed by a $55 million Series B led by the growth equity arm of Goldman Sachs Alternatives, with continued support from Blackstone Innovations Investments and participation from Golub Capital and Hamilton Lane. Pragma Partners advised 73 Strings and Quest Avocats advised Callisto.