Efs Engineering Inc Efs Engineering Inc Efs Engineering Inc PO Box 22370 San Diego San Diego, California 92192-2370 United States Efs Engineering Inc Phone 310-954-0064 Efs Engineering Inc Website efs-engineering.com Efs Engineering Inc Social Media (Facebook, Twitter, LinkedIn, Instagram) Efs Engineering Inc Reviews (Google, Yelp, YellowPages YP, BBB) CA Google Map of Efs Engineering Inc Location 7 Figure PR2019-02-01T08:24:00-07:00