According to our records, this business is located at 901 N Market St. in Wilmington (in New Castle County), Delaware 19801, the location GPS coordinates are: 39.7449605 (latitude), -75.5485267 (longitude). S 4 Consultants Inc is categorized under Industrial Consultants (SIC code 8748). Current estimates show that the unit has a sales volume of $675,000 and staff of approximately 3 people. You can contact the company by phone at (302) 576-9921.