Normally, ISO 9001 certification is already a significant step in reputation. However, its broad range of quality management guidelines make it less suitable to tackle industry-specific issues. Think of it as comparing apples and oranges. Making aircraft parts is different from designing state-of-the-art medical equipment.
For businesses in industries with localized standards, certification in this field is an advantage. Adequate AS9100 certification from services like ISA Registrar can make a business an authority in aerospace quality management. Customers will likely put more faith in a business specializing in a field.