**Saturday, April 18, 2026**
**10-5 pm**

The Tri-Valley Innovation Fair will be held on April 18 at the **Alameda County Fairgrounds** in **Pleasanton** for an exciting one-day event designed to bring people together in celebration of science, engineering, and technology.
The Tri-Valley Innovation Fair is a free one day event designed to connect everyone to the excitement of science, engineering, and technology. 70+ exhibitors will showcase the region’s diverse accomplishments and rich learning opportunities. Meet people who make innovation happen in local companies, schools, and community organizations. Interactive hands-on activities will be featured indoors and outside. Special performances are also scheduled throughout the day. **Admission is free.**

Who should attend?

Everyone is welcome! You are invited to be inspired as you explore the innovations that help us thrive in today’s world. Activities are geared for children ages 5 and up, teens, and adults. There will be something for everyone.

What to know before you go

Admission to the Tri-Valley Innovation Fair is free for all attendees. The event is open to the public from 10-5 pm and participating in all the exhibit activities will take ~2 hours. Register to receive event updates and help us better plan for your participation.

All vehicles must enter through Gate 12 on Valley Ave, then follow the event signs. Parking is $15 per vehicle charged by the Fairgrounds and can be purchased on-site with a credit card only. Families with EBT cards receive free parking if they show the card at the parking lot.