Sponsors
The North Bay Science Discovery Day (NBSDD) is an event that fosters children’s curiosity for science, technology, engineering, and mathematics (STEM). NBSDD is brought to life by a dedicated volunteer committee of science enthusiasts, in partnership with the University of California 4-H Youth Development Program. In 2026, there were approximately 11,000 attendees, and 105 organizations offering more than 150 hands-on STEM activities
Mission
Spark young people’s wonder and curiosity about STEM; strengthen the San Francisco North Bay’s STEM learning ecosystem; and connect the STEM industry, education, and public sectors to deepen and sustain young people’s STEM learning.
Why Sponsor?
Thanks to the generous support of sponsors like you, the NBSDD remains a free event for all attendees and exhibitors! By joining our network of dedicated supporters, you’ll showcase your commitment to STEM education while connecting with diverse audiences and demonstrating your passion for science and innovation. By contributing, you help create an inclusive environment where families of all socioeconomic backgrounds can share in the excitement of STEM. Together, we can build a stronger North Bay community, connecting schools, organizations, and families through a shared passion for STEM
Become a Sponsor, Exhibitor, or Both!
Sponsors donate any amount of funding while exhibitors provide hands-on STEM
activities during the event. Sponsors who also exhibit receive special recognition with
sign displayed at their exhibit booth.
Event Budget
Our event has a $75,000 budget, with about 60% for the Sonoma County Fairgrounds (including security), 20% for marketing, and 20% for event logistics, including programs, signage, and hospitality. Sponsorship funds are NOT used to cover personnel expenses or institutional indirect costs. Every sponsor dollar supports the NBSDD.
Sponsor Recognition
*Donation commitment must be received by April 13, 2027 to appear on event programs or signs.
Sponsorship Notes
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In-Kind Donations: Contributions of materials and services qualifies as sponsorship.
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Service Clubs and Volunteers: Donations from affiliated-organization clubs may be combined for a higher level of recognition (e.g., multiple Active 20-30, Kiwanis, Lions, and Rotary clubs). Organizations that provide groups of volunteers are recognized with their logo/name on the website.
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Partners: Organizations and individuals that make a significant contribution to NBSDD’s planning and operations have their logo/name on the website, program, and newsletters. Please consider joining the organizing committee; we welcome new members!
Fiscal Agents
These organizations are qualified for tax-exemption as organizations described in Section 501(c)(3) of the Internal Revenue Code of 1986, as amended. They route 100% of funds for the purpose of implementing the North Bay Science Discovery Day. The California 4-H Foundation is an affiliated support group of the University of California, Agriculture and Natural Resources (and routes 100% of funds to UC ANR to manage). Both UC ANR and Buck expend funds on behalf of the organizing committee and maintain fiscal records. All gifts are tax-deductible as prescribed by law.
California 4-H Foundation
Tax ID # is 23-7327765
Pay by check
Make payable to: California 4-H Foundation
Please write “NBSDD” on the memo line.
Mail to: Steven Worker, UCCE Sonoma
133 Aviation Boulevard, Suite 109
Santa Rosa, CA 95403-8279
Pay by credit card online at
https://give4h.ucanr.edu/forms/Sonoma4H-NBYSDD
Search funds: "Sonoma County 4-H: North Bay Youth Science Discovery Day"
Buck Institute for Research on Aging
Tax ID# 94-3030609
Pay by check
Make payable to: The Buck Institute
Please write “NBSDD” on the memo line.
Mail to: Susan Hickey
8001 Redwood Boulevard
Novato, CA 94945
Pay by credit card online at
2027 Sponsors
Hosting Sponsors
Rhodium Sponsor ($10,000+)
Platinum Sponsor ($5,000+)
Gold Sponsor ($3,500+)
Palladium Sponsor ($2,500+)
Iridium Sponsors ($1,000+)
(sorted alphabetically)
Rotary Club of Healdsburg
