According to our records, this business is located at 2415 Milford Harrington H in Milford (in Sussex County), Delaware 19963, the location GPS coordinates are: 38.9335049 (latitude), -75.4804879 (longitude). HI Grade Ent Inc is categorized under Private Junior High School (SIC code 8211). You can contact the company by phone at (302) 422-8978.