Investor Presentation

RS Company Snapshot Rimini Street is a global provider of end-to-end enterprise software support, products and services Global Platform Strong Revenue Growth Profile Year-to-date September 30, 2023 23% Services Founded: 2005 US$ IN MILLIONS Public: Nasdaq: RMNI TMT 23% $450 Global Headquarters: Las Vegas, NV USA $400 CAGR 14% Employees: 2,000+ $350 $410 $374 $300 Signed Clients: 5,300+ $327 Revenue by Industry $250 11% Public Sector & Education (includes 180+ Fortune 500 and Global 100) $281 $200 $253 Global Mkt Share (1): 86% + $150 Avg Case Client Sat: 4.9+/5.0 $100 $50 27% Manufacturing 6% Global Reach: 21 countries of operation, $0 supporting clients in 140+ countries Distribution & 10% Healthcare & Retail 2018 2019 2020 2021 2022 Many Supported Products and Services Transportation SUPPORT SERVICES MANAGED SERVICES ORACLE SAP ORACLE SAP MariaDB salesforce MySQL MongoDB. Microsoft MySQL MariaDB PostgreSQL IBM Microsoft MongoDB. PostgreSQL PROFESSIONAL SERVICES AND SOLUTIONS Strategic roadmaps, Composable ERP, ERP modernization, Custom solutions, Cloud migrations, Database migrations, Security assessments, Rimini solution implementations, Licensing advisory, Health checks, Skills augmentation U.S. 51% Revenue by APAC 28% Geography2 Other EMEA 13% 8% 1. Based on Gartner metrics for independent support of Oracle and SAP products. 2. "Other" includes Americas excluding the U.S.. Property of Rimini Street 2023 | Proprietary and Confidential 6

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