According to our records, this business is located at 47428 Fremont Blvd. in Fremont (in Alameda County), California 94538, the location GPS coordinates are: 37.475725 (latitude), -121.9433677 (longitude). R4S Corp is categorized under Computer Consultants (SIC code 7379). Known organization owner is Kevin Yu. Current estimates show that the unit has a sales volume of $1,610,000 and staff of approximately 10 people. You can contact the company by phone at (510) 839-1234.