JGPC Law JGPC Business & Corporate Law-Business Law Firm, Pleasanton, Dublin, Livermore, San Ramon, Danville, Walnut Creek, Castro Valley, Fremont, Tracy, Modesto, Manteca, Stockton, CA and all of Alameda County and Contra Costa County JGPC Business & Corporate Law provides Business and Corporate Legal Services in Pleasanton, California. Our California Business Attorneys assist clients throughout the San Francisco Bay Area