Many commercial composting operators are performing municipal waste-management and do not choose most of the ingredients that go into the resulting compost.
To grow nutrient dense and healthy plants, it is best to make your own compost at home. Use starting materials from the local surroundings plus garden waste, food scraps, autumn leaves, seaweed and hedge trimmings. Therefore you know what has gone into your compost. The microbes on those composting materials are from the local environment and adapted to suit your local conditions.