B2B, or Business-to-Business, refers to transactions and interactions between businesses rather than between a business and individual consumers. In this model, companies provide products or services to other companies, which can include wholesale distributors, manufacturers, or service providers. B2B transactions often involve larger quantities and higher values compared to B2C (Business-to-Consumer) transactions. Examples of B2B activities include a software company selling its products to a corporate client or a manufacturer supplying parts to another manufacturer. This model is essential for the supply chain and overall economy.