Houlihan Lokey Advises Castik Capital
Funds advised by Castik Capital have acquired Interact Software
Buyside & Financing Advisor
Houlihan Lokey is pleased to announce that funds advised by Castik Capital have acquired Interact Software (Interact), a leading employee experience SaaS platform. The transaction closed on 18 December 2025.
Interact is a leading employee experience SaaS platform that helps organisations facilitate internal communication, foster knowledge sharing, and boost employee engagement. Its products include intranet, employee communications, employee advocacy, employee analytics, and digital assistance modules. Interact is recognised as a “Leader” in Gartner’s Magic Quadrant for Intranet Packaged Solutions and currently serves c. 850 enterprise customers, including Domino’s, Columbia, Subway, and the United States House of Representatives. Headquartered in Manchester, England, Interact generates more than 60% of its revenues from the United States.
Founded in 2014, Castik is a private equity investment manager focused on investing in high-quality and growing businesses headquartered in Europe and led by strong management teams and founders. Current investments are made by the Luxembourg-based fund EPIC III, the third fund managed by Castik, which had its final fund close at €2 billion in September 2024.
Castik Capital has acquired a majority stake in Interact from Unicorn Asset Management, Octopus Ventures, Perwyn Advisors, the former Chairman, executive management, and other minority shareholders. Unicorn, the former Chairman, and executive management will remain shareholders in the business.
The investment has accelerated Interact’s mission to become the definitive operating system for the enterprise employee experience, powering substantial growth through targeted M&A and deep product development.
Houlihan Lokey served as lead buyside M&A and exclusive financing advisor to Castik Capital.