B2B, or Business-to-Business, refers to transactions, services, or relationships conducted between one business and another, rather than between a business and individual consumers. In a B2B model, companies sell products or services such as software, consulting, outsourcing, or telemarketing to other organizations to support their operations, growth, or efficiency.

B2B interactions typically involve longer sales cycles, higher-value contracts, and decision-makers such as managers, executives, or procurement teams. For companies like Allied Fusion BPO, B2B services focus on helping other businesses improve performance through solutions such as customer support, lead generation, IT services, and back-office outsourcing.