November 27, 2025. Funds managed by Castik Capital S.à r.l. (“Castik”) have entered into an agreement to acquire a majority stake in Interact Software (“Interact”) from Unicorn Asset Management (“Unicorn”), Octopus Ventures (“Octopus”), Perwyn Advisors (“Perwyn”), the former Chairman, Executive management and other minority shareholders. The significant strategic investment will accelerate 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.
Unicorn AIM VCT plc, the former Chairman and Executive management will remain shareholders in the business following the transaction. Simon Dance, CEO of Interact, will continue to lead the business alongside his executive management team.
“In Castik, we have found our partner of choice to support us in expanding our capabilities within the broader employee experience space. We look forward to a close collaboration in the coming years. Castik has deep expertise in the space from previous employee experience investments, and is the perfect partner to take on this journey with us.” says Simon Dance, CEO of Interact.
Headquartered in Manchester, UK, Interact provides a SaaS platform that helps organizations facilitate internal communication, foster knowledge sharing, and boost employee engagement. The company currently serves a broad range of blue-chip customers across North America, EMEA, and the Middle East, with its largest markets being the United States and the United Kingdom.
The global employee experience market continues to demonstrate strong growth as organizations prioritize talent retention and culture alignment in a hybrid world. Interact is strategically positioned to capitalize on this trend by accelerating investments in its core platform and expanding its feature set to address complex enterprise communication challenges.
Interact plans to continue executing its ambitious growth strategy, focused on establishing itself as a leading employee experience platform for enterprise customers. This will include targeted investments in its core intranet platform and further expansion into the broader employee experience space, both organically and through strategic M&A.
“We would like to thank Interact’s management team for the trust they have placed in us, and we are very much looking forward to working together. Interact is perfectly placed in the market to expand its offering and support customers in achieving their communication and engagement goals. Castik will apply its experience from prior human capital management investments to support Interact further accelerate growth,” says Michael Phillips, Partner at Castik Capital.
Interact was advised on the transaction by KeyBanc Capital Markets and Clearwater (M&A), EY Parthenon (Commercial), Deloitte (Financial and Tax), Greenberg Traurig (Legal), Slater Heelis (Legal), and Crosslake (Tech).
Castik Capital S.à r.l. was advised by Houlihan Lokey (M&A and Financing), William Blair (M&A), Bain (Commercial and Tech), PwC (Financial, ESG and Tax structuring), EY (Tax), Skadden, Arps, Slate, Meagher & Flom (Legal), and White and Case (Financing legal).