Giammona Insurance Agency Share: Insurance - Sales and Services Giammona Insurance Agency Visit Website Request Info Danville, CA 94506 925-858-3061 About Map About We have been in Business for over 20 years. We are a multi-line agency specializing in Home, Auto, Commercial, Life & Health Insurance. We shop A-rated carriers to get you the best rates & coverage. What's Nearby? Distance: 5 10 15 20 25 50 mi.