Regeneron ISEF (via your regional fair)
Competition · Society for Science · Regional → state → international
The world's largest pre-college science competition, fed by affiliated fairs.
Our take
You get there by winning your regional and state fair. Even a state-level award is a real line; ISEF itself is a big one.
“Helps an application” is our read on how much an admissions reader is likely to weigh it: Strong means getting in or placing is a real achievement, Solid means it shows real interest and effort, and Light usually means most students who apply and pay can attend. It’s our opinion, not a ranking from any college, and a light one can still be a great summer.
The details
- Run by
- Society for Science
- Type
- Competition
- Format
- In person, Regional → state → international
- When
- During the school year
- Who can apply
- 9th–12th grade
- How hard to get in
- Competitive
- Cost
- Under $1k, with financial aid or fee waivers
- Deadline
- Usually closes in January or February. Through your school or regional fair; most regionals run January–March.
- Subjects
- Life Sciences, Physical Sciences, Engineering, Computer Science, Math, Environment
Dates, costs and rules change every year. Check the official site before you apply. Last checked October 18, 2026.
Questions
Is Regeneron ISEF (via your regional fair) worth it?
You get there by winning your regional and state fair. Even a state-level award is a real line; ISEF itself is a big one. On how much it helps a college application, we rate it strong.
How much does Regeneron ISEF (via your regional fair) cost?
It costs under $1,000. Financial aid or fee waivers are available. Check the official site for this year’s price.
When is the Regeneron ISEF (via your regional fair) deadline?
Usually closes in January or February. Through your school or regional fair; most regionals run January–March. Exact dates change every year, so confirm on the official site.
Who can apply to Regeneron ISEF (via your regional fair)?
Students in 9th–12th grade. It is competitive.
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