Thank you for your interest in joining the Rohnert Park Chamber of Commerce! Click on Step 5 Membership Options to find our different membership packages. Our membership dues can now be spread over 12 monthly payments. For example, a business with 1-10 employees, the monthly fee is only $26.25. Please contact us if you have any questions - Lisa Orloff, Executive Director can be reached at (707) 849-1635.