Exhibit 99.1 Grid Dynamics Reports First Quarter 2025 Financial Results Record Revenues of $100.4 million and GAAP Net Income of$2.9 million San Ramon, Calif. — May 1, 2025 – Grid Dynamics Holdings, Inc. (Nasdaq: GDYN) ("Grid Dynamics" or the "Company"), a leader in enterprise-level digital transformation, today announced results for the first quarter ended March 31, 2025. We are pleased to report first quarter 2025 revenues of $100.4 million, slightly above our outlook range of$98.0 million to $100.0 mil ...