Final answer:
Service companies sell services, merchandising companies sell tangible goods, and manufacturing companies produce tangible goods.
Step-by-step explanation:
Service companies are companies that primarily sell services rather than tangible goods. Examples include consulting firms, law firms, and healthcare providers. They offer expertise and skills rather than physical products.
Merchandising companies are companies that buy and sell tangible goods. They purchase products from manufacturers or wholesalers and sell them to customers. Examples include retail stores, online marketplaces, and wholesalers.
Manufacturing companies are companies that produce tangible goods by transforming raw materials into finished products. Examples include automobile manufacturers, electronics manufacturers, and food processing companies.