OneStream, Inc.(OS) - 2025 Q3 - Quarterly Results

Exhibit 99.1 OneStream Announces Third Quarter 2025 Financial Results BIRMINGHAM, Mich., OneStream, Inc. (Nasdaq: OS), the leading enterprise Finance management platform that modernizes the Office of the CFO by unifying core finance and operational functions -- including financial close, consolidation, reporting, planning and forecasting -- today announced financial results for its third quarter ended September 30, 2025. Third Quarter 2025 Financial Highlights "The team delivered another strong quarter, exc ...