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73 Strings acquires Callisto for AI advancement

PRIVATESep 24, 2026

Acquiring Company

73 Strings

Acquired Company

Callisto

ParisParisFinancial ServicesFinanceFintechInformation TechnologyArtificial Intelligence

Description

73 Strings has acquired Callisto to enhance its capabilities in the agentic AI sector for private markets. This acquisition will allow 73 Strings to leverage Callisto's technology in automating various investment workflows. The merger signifies a strategic move towards accelerating investment in AI solutions for alternative asset managers.

Company Information

Company

73 Strings

Location

Paris, Ile-de-France, France

About

73 Strings is a modern, integrated and holistic data collection, monitoring and valuation platform powering the private capital industry. The company has developed a next generation AI-powered platform to assist alternative investment funds in streamlining their middle-office processes. The platform enables funds to collect and seamlessly structure portfolio company data, monitor these companies and estimate their fair value at the click of a button. 73 Strings supports clients globally across multiple strategies including Private Equity, Growth Equity, Venture Capital and Private Credit. Since inception, 73 Strings has added clients with combined assets under management of more than USD 2 trillion. The company is headquartered in Paris and has a global presence across New York, London, Paris, Toronto, and Bengaluru to support its growing customer base. The current leadership of 73 Strings has extensive professional expertise in private assets and the team is supported by a global network of highly seasoned advisors with a combined 300+ years of financial advisory and private markets experience. For more information, please visit 73strings.com.

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Frequently asked

Who acquired Callisto?

Callisto was acquired by 73 Strings, based in Paris. The deal was reported on September 24, 2026. 73 Strings is a modern, integrated and holistic data collection, monitoring and valuation platform powering the private capital industry. 73 Strings is privately held and operates in Financial Services.

When did 73 Strings acquire Callisto?

73 Strings's acquisition of Callisto was reported on September 24, 2026. 73 Strings has acquired Callisto to enhance its capabilities in the agentic AI sector for private markets. This acquisition will allow 73 Strings to leverage Callisto's technology in automating various investment workflows. Fundz records the date the transaction was first publicly reported, sourced from filings and company announcements.

What does Callisto do?

Callisto is a fintech company specializing in AI and data technology that automates workflows in private markets. It offers solutions for due diligence, data room analysis, and investment documentation preparation. It is privately held, operating in Information Technology, and is based in Paris.

This company was part of an acquisition. Fundz tracks who bought whom, and who to call on both sides.

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Fundz is a real-time business intelligence platform powered by agentic AI that proactively delivers personalized daily signals, including funding rounds, executive changes, M&A activity, 13F institutional filings, SEC 8-K events, investor activity, and website modifications, based on each user's watchlist and ICP. A trusted data source at firms such as BlackRock, Oracle, Kleiner Perkins, LinkedIn, HubSpot, and Cloudflare, Fundz democratizes the institutional-grade intelligence that previously required a PitchBook or Bloomberg terminal. Features include FundzWatch™ for automated website change detection, Daily Briefing for AI-powered daily briefings, and unified cross-signal alerts across 285,000+ organizations. Developers and data teams can access these signals programmatically via the Fundz Funding Data API, with transparent published pricing.