What financial performance management software provider did private equity firm Hg acquire for $6.4 billion in January 2026?

OneStream, a prominent provider of financial performance management software, was acquired by the private equity firm Hg for $6.4 billion in January 2026. This significant transaction saw Hg become the majority voting shareholder, with additional minority investments from General Atlantic and Tidemark. The acquisition marked a pivotal moment for OneStream, which offers an enterprise finance management platform designed to streamline and modernize the Office (Review) of the CFO by unifying essential financial and operational functions.

Hg is a London-based private equity firm with a strong focus on investing in technology and services businesses, particularly within the software sector. The acquisition of OneStream aligns with Hg's strategy of backing companies that provide critical software applications. Prior to this deal, OneStream had gone public in 2024 with KKR as a major investor, making its re-privatization a notable event in the financial software landscape.

OneStream's platform is renowned for its ability to unify financial close, consolidation, reporting, planning, and forecasting processes, offering a comprehensive solution for corporate performance management. The partnership with Hg is expected to accelerate OneStream's innovation, particularly in artificial intelligence, and enhance its ability to scale its offerings for the evolving needs of finance departments. This strategic move aims to further solidify OneStream's position as a leader in helping companies navigate complex financial environments and improve decision-making.