Society for Science - 2026 Regeneron International Science & Engineering Fair

The International Science and Engineering Fair (ISEF), the world's largest international pre-college science competition, annually provides a forum for more than 1,800 high school students from 81 countries, regions and territories to showcase their independent research. ISEF is the premiere science competition in the world exclusively for students in grades 9-12.

Each year, millions of students worldwide compete in local and school-sponsored science fairs; the winners of these events go on to participate in ISEF-affiliated regional and state fairs from which the best win the opportunity to attend ISEF. ISEF unites these top young scientific minds, showcasing their talent on an international stage, enabling them to submit their work to judging by doctoral-level scientists--and providing the opportunity to compete for almost $8 million in prizes and scholarships.