Exhibit 99.1 Couchbase Announces First Quarter Fiscal 2025 Financial Results Santa Clara, Calif., - June 5, 2024 – Couchbase, Inc. (NASDAQ: BASE), the cloud database platform company, today announced financial results for its first quarter ended April 30, 2024. “We grew ARR by 21% year-over-year, continued to increase our Capella mix, and made meaningful progress in our efforts to improve our operational rigor and efficiency,” said Matt Cain, Chair, President and CEO of Couchbase. “I’m particularly pleased ...