Exhibit 99.1 FOR IMMEDIATE RELEASE Forrester Research Reports 2025 Second-Quarter Financial Results CAMBRIDGE, Mass., July 31, 2025 — Forrester Research, Inc. (Nasdaq: FORR) today announced financial results for the second quarter ended June 30, 2025, with contract value at $288.7 million, down 7% compared with the prior year. "As predicted, the second quarter saw ongoing market uncertainty, which continues to impact CV," said CEO and Chairman George F. Colony. "Despite macroeconomic pressures, we delivered ...