Regeneron ISEF 2026 - Phoenix, Arizona
From May 9 to May 15, more than 1,700 young scientists, engineers, entrepreneurs, and inventors will convene at the Phoenix Convention Center for a week of events, connecting with their peers and global STEM leaders, and more than $7 million in awards and prizes—marking more than 75 years of Regeneron ISEF.
The finalists, selected from 365 affiliate fairs in more than 60 countries, regions, and territories, have all completed exemplary research projects and earned the right to compete at Regeneron ISEF by winning at a Society-affiliated local, regional, state, or national science fair.
Download the Attendee Schedule.
The Opening Ceremony was live-streamed on YouTube: watch it here.
Information for Attendees
Information for Attendees traveling to the 2026 Regeneron ISEF in Phoenix.
Awards
Regeneron ISEF finalists compete for over $7 million in awards, prizes and scholarships.
Visit the Regeneron ISEF Virtual Fair
Learn more about projects and finalists from Regeneron ISEF
Education Outreach Day
Education Outreach Day brings local middle and high school students to ISEF to meet the ISEF Finalists, participate in STEM activities, and create their own scientific questions.
Volunteer for 2026
Sign up to support the 2026 Regeneron ISEF in Phoenix, Arizona, in May 2026 as interpreters and event volunteers.
Special Award Organizations (SAO)
More than 45 professional organizations give out Special Awards at Regeneron ISEF.
Serve as a Grand Award Judge in 2026
Learn more about Grand Award Judging at Regeneron ISEF.
Learn about Sponsorship
Join the exclusive group of forward-thinking corporations, foundations, organizations, and individuals that provide support for ISEF.
Regeneron ISEF Categories
Regeneron ISEF finalists compete across 22 different scientific categories.
Scientific Integrity
Society for Science expects students competing in Regeneron ISEF to hold themselves to the highest ethical standards.
Media Registration
Complimentary press registration, including access to most Regeneron ISEF programs and events, is available to applicants with valid media credentials.
Compete
Competing at Regeneron ISEF starts at a Society-affiliated fair.
Official rules and guidelines for competition.
Project Material Guidelines for Regeneron ISEF
Answers to questions for students, parents and teachers.
Definitions and details of the categories of competition.
Searchable database of abstracts from 2014 to 2025.
Congratulations to all the
Regeneron ISEF 2025 Finalists
Congratulations to the top award winners announced at the 2025 Regeneron ISEF Grand Awards Ceremony. Read the Press Release, watch the Grand Awards Ceremony, and view the 2025 Regeneron ISEF Program Book.
2025 Special Award Winners: Read the Press Release and watch the Special Awards Ceremony.
Learn about all the extraordinary research Regeneron ISEF students have been conducting at our Virtual Science Fair.
Science Fair: The Series
Regeneron ISEF is on a small screen near you!
Be sure to tune in for Science Fair: The Series on the National Geographic channel and streaming on Disney+ and Hulu.
Watch this gripping three-part docuseries that follows the ups and downs of young innovators, engineers and scientists on their way to the Regeneron International Science and Engineering Fair.
Learn more about the finalists and their research
Learn more about getting involved
View the Trailer
Affiliated Fairs
The Society’s network of affiliated science fairs around the globe are critical to the success of Regeneron ISEF and Thermo Fisher Scientific Junior Innovators Challenge.
Resources for science fair personnel include:
- Affiliated Fair Dashboard
- Affiliated Fair Guidelines
- Resources for Science Fair Management
- Standards for Science Fairs
From the Society Blog
Questions?
Thank You to the Sponsors of ISEF 2025
