Exhibit 99.1 1999 Bryan Street, Suite 3500 Dallas, Texas 75201 1.214.583.8500 Press Release FOR IMMEDIATE RELEASE May 7, 2024 Jacobs Reports Fiscal Second Quarter 2024 Earnings Second Quarter Revenue up 4.7% Year-Over-Year People and Places Solutions (P&PS) Revenue up 7.5% Year-Over-Year Operating Profit down 3% Year-Over-Year, Adjusted Operating Profit up 10%1 Repurchased $95M in Shares During the Second Quarter Narrows Fiscal 2024 Adjusted EBITDA and Adjusted EPS Range DALLAS, TEXAS - Jacobs Solutions Inc ...