Testing Locations » Michigan » Portage MI » Delisel Associates, Ltd – Delisel Associates, Ltd – Drug Testing Only (Preferred) Delisel Associates, Ltd – Delisel Associates, Ltd – Drug Testing Only (Preferred) Delisel Associates, Ltd – Delisel Associates, Ltd – Drug Testing Only (Preferred)5050 S Sprinkle RdPortage, MI 49002-2000 United States