According to our records, this business is located at 419 Milford Harrington Hwy in Milford (in Sussex County), Delaware 19963, the location GPS coordinates are: 38.9213281 (latitude), -75.4516023 (longitude). John Swire & Sons is categorized under Holding Utilities Companies (SIC code 6719). Known organization owner is John Swire. Current estimates show that the unit has a sales volume of $19,440,000 and staff of approximately 30 people. You can contact the company by phone at (302) 422-8396; the following fax number is also provided: (302) 422-6311.