Who is owning all steps in the production of a product?

Owning all steps in the production of a product is typically referred to as vertical integration. This occurs when a single company controls multiple stages of the supply chain, from raw materials to manufacturing and distribution. By doing so, the company can streamline operations, reduce costs, and maintain quality control throughout the production process. Companies like Tesla and Apple are examples of businesses that have pursued vertical integration to enhance efficiency and competitiveness.