The Regeneron International Science and Engineering Fair (ISEF) provided by the Society for Science is a prestigious global competition that celebrates and rewards the world's brightest high school scientists and engineers. The primary objective of Regeneron ISEF is to foster the next generation of STEM leaders by providing a platform for young innovators to present pioneering solutions aimed at improving the world. The fair encompasses a wide range of scientific disciplines, encouraging participants to engage in rigorous research and present their findings. Key topics and skills covered at Regeneron ISEF include advanced scientific research, data collection, project ideation, and problem-solving across various scientific and engineering fields. Participants have the opportunity to explore a diverse array of subject areas and engage in hands-on, interactive STEM activities during the event. Regeneron ISEF is delivered in person, with events taking place at significant venues such as the Los Angeles Convention Center. The event includes a week-long schedule featuring project displays, judging sessions, and interactive exhibitions. Notable dates include the Education Outreach Day, which allows local middle and high school students to engage directly with ISEF finalists. Participants must first qualify through a Society-affiliated fair, adhering to official rules and guidelines for competition. The outcomes and benefits of participating in Regeneron ISEF are substantial, with finalists competing for nearly $9 million in awards, scholarships, and prizes. This competition not only recognizes the participants' achievements but also inspires them to pursue careers in STEM, thereby contributing to positive and sustainable change globally.