The International Science and Engineering Fair (ISEF) is the world’s largest pre-college science competition, bringing together thousands of high school students from more than 60 countries, regions, and territories to present their research. ISEF gives you a global audience for your work, plus opportunities for scholarships and networking with top researchers. To compete at ISEF, you first have to qualify through an affiliated regional science fair. These regional fairs are the qualifier: you’ll get feedback on your project, and if you do well, a spot at ISEF.
Step-by-Step Guide to Finding Your Affiliated Regional Science Fair
Step 1: Visit Sciencefair.io
Start at the Sciencefair.io website. Built by past science fair winners, it has a tool to find your affiliated fair.
Step 2: Access the “Find a Fair” Tool
On the homepage, look for the “Find a Fair” feature near the bottom of the page, or go to it directly.
Step 3: Enter Your Location
The tool needs some basic information to narrow the search. Click your state on the map, then click your county.
Step 4: Review the Search Results
The tool then shows the ISEF-affiliated regional fairs nearest you, plus the state fair (if you’re in a larger state). You’ll see each fair’s name and contact information, along with a breakdown of past project categories, the number of finalists from the region, and how competitive it is.

Step 5: Look Up the Fair
Once you’ve identified a fair, look it up for more detail, including entry requirements and deadlines. Make sure you know how to compete and plan enough time to prepare. I’d recommend starting about six months before the first fair, though that varies with the type of project.
Step 6: Register for the Fair
With all the information in hand, complete the registration. Meet every deadline and eligibility requirement, and register as soon as you can once you’ve decided to compete.
Maximize Your Chances with Sciencefair.io’s Coaching Program and A-Z Masterclass
Finding the right regional fair is a necessary first step, but preparing a winning project is the real challenge. Sciencefair.io offers resources to help.
Coaching Program
The coaching program pairs you with mentors who have won the fairs you plan to compete in. They give personalized guidance on everything from ideation and research to presentation and judging criteria.
A-Z Masterclass to Win ISEF
The A-Z Masterclass is an online program covering everything you need to succeed at ISEF, with step-by-step instructions and insider tips for any aspiring finalist.






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