Alameda County General Services Agency Share: Non-Profit OrganizationsGovernment Agencies Alameda County General Services Agency Visit Website 1401 Lakeside Drive Oakland, CA 94612 (510) 208-9700 About Map About Alameda County GSA purchases a high volume of goods and services for county departments. We offer chamber businesses information and support in making the County a customer. What's Nearby? Distance: 5 10 15 20 25 50 mi.