Exhibit 99.1 Synchronoss Technologies Reports Third Quarter 2025 Results Net Income of $5.8 Million and Diluted EPS of$0.51 Per Share Revenue of $42.0 Million, Including 93.8% Recurring Revenue Company Reiterates Expectation of Adding a New Customer in 2025 Additional Tier 1 Customer Signing Expected in First Half of 2026 BRIDGEWATER, NJ - November 4, 2025 - Synchronoss Technologies Inc. ("Synchronoss" or the "Company") (Nasdaq: SNCR), a global leader and innovator in Personal Cloud platforms, today report ...