Chamber Sponsorship Opportunities

Sponsorship opportunities abound for Mill Valley Chamber members, offering many ways to enhance your brand and engage with customers. We proudly host two notable events every year: the Mill Valley Music Festival, a two-day outdoor music concert in Spring, and Winterfest, a beloved family-friendly holiday tradition in December. Let us help you design a sponsorship to suit your goals and budget, and ensure your brand receives meaningful exposure.


Mill Valley Music Festival

The Milll Valley Music Festival (MVMF) a multi-genre two-day celebration of artists and experiences with 12,000 attendees (6,000 per day.) In addition to sensational music, guests enjoy world-class food, drink and art in a family-friendly, community atmosphere.

  • Sponsorship opportunities include: Activities, Art Installations, Wristbands, Bike Zone, Wellness Oasis, Manzanita Marketplace, Kids Arcade, Water Stations and many more.
  • Share your brand/company’s story with the affluent Mill Valley, Marin, San Francisco, and Greater Bay Area communities.
  • 10% of proceeds go to two designated local nonprofits each year.
  • On-site, digital, and press exposure



Winterfest is our landmark happy holiday celebration for 4,000 family-loving locals. Super slide, bounce house, performances, Santa, games and more.

  • Customized sponsorships with captivating activities to amuse kids while providing you with the opportunity to engage with parents and promote your brand.
  • Proceeds benefit the Mill Valley Chamber, the businesses, organizations and community it serves, and Kiddo!.
  • On-site, digital, and press exposure.

Interested in becoming a Sponsor?

Contact our Program Manager Susan Lopes to review the best advertising strategy for your brand.

Sponsorship Inquiry

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Mill Valley Chamber of Commerce & Visitor Center
85 Throckmorton Avenue
Mill Valley, CA 94941

Tuesday, Thursday, Friday & Saturday
noon - 4pm