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See you all on Saturday June 21st
Waltham Children's Business Fair
Saturday, June 21, 2025
9:00AM - 2:00PM
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About the fair
IN-PERSON EVENT: Waltham Children’s Business Fair
Watch Young Entrepreneurs Launch Their First Startups!
Children will have the unique opportunity to develop a brand, create a product or service, build a marketing strategy, and open for customers — all in one exciting day at our youth-run marketplace!
Event Details
Date: Saturday, June 21, 2025
Time: 9:00 AM – 2:00 PM (Marketplace)
Location: Waltham Common, 610 Main Street, Waltham, MA
We are thrilled to welcome approximately 100 youth-run booths to the 9th Annual Waltham Children’s Business Fair, now proudly a part of the International Children’s Convention.
Each booth will feature a flag representing the participant’s country of origin, celebrating the global diversity of our young entrepreneurs.
International Children’s Convention (2:00 PM – 4:00 PM)
Stay for the second half of this inspiring day, featuring:
- International Art Exhibition
- Cultural Talent & Fashion Show
- Traditional Food Tasting
- Awards Ceremony
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Business Competition
All participants will be automatically entered into our Business Competition, judged on:
- Most Original Business Idea
- Highest Business Potential
- Best Presentation
Four winners will receive $100 cash prizes (shared among partners if applicable).
One of these will be selected as the Overall Winner and receive an additional $100, for a total of $200!
Mentorship Opportunity
Top winners interested in taking their venture further will be paired with mentors to help grow their business beyond the one-day event.
Participation Fee: $25 per booth
All participants will receive non-cash recognition for their creativity and effort.
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Brought to You By:
Mamai Art Gallery, Inc. • Acton Academy
Generously supported by our donors and volunteers who believe that principled entrepreneurs — whether global icons like Elon Musk and Oprah Winfrey or local business heroes — are role models who innovate, serve, and inspire.
Hosted by
Fiona Mamai
🗓️ Started hosting in 2017
✅ Identity verified
⭐️ 4.3 (14)
We are a team of passionate entrepreneurs, teachers, mentors, and parents, who want our children to learn about entrepreneurship in a practical and fun way.
93 booths participating
Lace Helper
Treasures with love
And 91 others.
Frequently asked questions
What is the Waltham Children’s Business Fair?
The Waltham Children’s Business Fair inspires children to discover their inner entrepreneurial skills. And is the largest entrepreneurship event for kids in North America, this one-day market gives children the opportunity to showcase their very own businesses.
How many businesses will you accept?
We will accept up to 100 businesses.
Where should I begin?
Where should I begin?
Start with our resources page. Read inspiring stories about other young entrepreneurs and play games to hone your business skills.
How do I apply? Can I apply as part of a group?
How do I apply? Can I apply as part of a group?
Application must be submitted online through the link provided ONLY. Please submit one application for each business. Children working as a group should submit one application that includes each child’s information. No more than 3 participants per business.
What is on the application?
The application asks kids to think through some simple, but important elements of their business:
What if someone else has the same business idea?
Two cupcake businesses? Not a problem. In general, we will let market forces play out, though we will let later entries know if another applicant has a similar idea so the later entrant can decide what to do.
How will the fair be set up?
Two cupcake businesses? Not a problem. In general, we will let market forces play out, though we will let later entries know if another applicant has a similar idea so the later entrant can decide what to do.
How will the fair be set up?
The fair will be in-person with 100 booths and we will also upload the kidpreneurs profiles on our website.
We will vet businesses before the event, kids must have created the products or contributed the bigges percentage to it's creation.
We will vet businesses before the event, kids must have created the products or contributed the bigges percentage to it's creation.
Will electricity be available?
Yes, we are able to provide electricity to the booths that request it.
What are the rules?
What are the rules?
This event is designed to give children the experience of selling a product or service. If a parent is found selling or promoting a child’s product or service, their child’s business will be disqualified from the competition.
Parents of younger children may sit in the booth, but the children should be responsible for set up, customer interaction, and sales.
Parents may help their child fill out the application, but we expect the children to do as much as possible by themselves.
Parents of younger children may sit in the booth, but the children should be responsible for set up, customer interaction, and sales.
Parents may help their child fill out the application, but we expect the children to do as much as possible by themselves.
How did the Children’s Business Fairs get started?
Jeff and Laura Sandefer and a few other families wanted to spark a sense of wonder and entrepreneurship in their children so they created the first Acton Children’s Business Fair in Austin, Texas, in 2007. That year, there were seven entrepreneurs and around 25 attendees. Now, the fairs have spread out all over North America and other parts of the world.
In Waltham, the fair was started Fiona Mamai director of Mamai Art Gallery, Inc. with 8 booths and 14 kid entrepreneurs in 2017 then 48 booths and 73 entrepreneurs in 2018. For 2019, we had 64 booth applications 110 entrepreneurs and 750 attendees.
In 2020, we had 25 booths, 42 kids and over 1000 online participants.
In 2021, we had 34 booth 52 kids and it was in person.
In 2022, we had 76 kids with 51 booth.
In 2023, we had 132 kids with 85 booths
2024, 110 kids with 70 booths.
How can one pay the registeration?
After filling out the registration form, you will be directed to the PayPal link. However if you don't have PayPal,
CashApp 781-325-5053
Remember to Include child's name on any of the payment methods
In Waltham, the fair was started Fiona Mamai director of Mamai Art Gallery, Inc. with 8 booths and 14 kid entrepreneurs in 2017 then 48 booths and 73 entrepreneurs in 2018. For 2019, we had 64 booth applications 110 entrepreneurs and 750 attendees.
In 2020, we had 25 booths, 42 kids and over 1000 online participants.
In 2021, we had 34 booth 52 kids and it was in person.
In 2022, we had 76 kids with 51 booth.
In 2023, we had 132 kids with 85 booths
2024, 110 kids with 70 booths.
How can one pay the registeration?
After filling out the registration form, you will be directed to the PayPal link. However if you don't have PayPal,
CashApp 781-325-5053
Remember to Include child's name on any of the payment methods
