EXHIBIT 99.1 Exponent Reports Third Quarter of Fiscal Year 2025 Financial Results Total revenues and revenues before reimbursements for the first three quarters of 2025 increased 3% to $434.6 million and 3$407.4 million, respectively, as compared to $421.7 million and$394.7 million in the same period of 2024. Net income decreased to $81.2 million, or$1.58 per diluted share, through the first three quarters of 2025, as compared to $85.4 million, or$1.66 per diluted share, in the same period of 2024. ...