Five9 Inc. reported third quarter 2025 revenue of $285.8 million, up 8.2% from $264.2 million in the third quarter of 2024. GAAP gross margin for the quarter was 55.0%, compared to 53.8% a year earlier, while adjusted gross margin was 62.8%, up from 61.8%. Adjusted EBITDA reached $71.7 million, representing 25.1% of revenue, compared to $52.4 million, or 19.8% of revenue, in the prior year period. GAAP operating cash flow for the quarter was $59.2 million, up from $41.1 million in the previous year. The company reported that its Enterprise AI revenue grew 41% year-over-year. Five9 announced a $150 million share repurchase program. For the full year 2025, Five9 expects revenue between $1,143.5 million and $1,149.5 million.