Exhibit 99.1 Press Contact: Will Thoretz +1 203 517 3119 will.thoretz@isg-one.com Investor Contact: Michael Sherrick +203 517 3104 michael.sherrick@isg-one.com Information Services Group Announces Second-Quarter 2025 Results STAMFORD, Conn., August 6, 2025 ― Information Services Group (ISG) (Nasdaq: III), a global AI-centered technology research and advisory firm, today announced financial results for the second quarter ended June 30, 2025. "ISG delivered an excellent second quarter, underscoring our moment ...