Express is our most basic package: It serves 1 (parametric) to 3 (keyword) users and offers 10k queries/month for keyword search and 3k queries/month for parametric. Express includes electronics-specific synonym tables. Building on that is SMB, which is aimed at 3 (parametric) to 5 (keyword) users and offers 10k queries/month for parametric and 50k queries/month for keyword. The next level up is Core, which includes all of the basic features of the search engines plus a virtual training center. Professional adds enhanced features, such as API integration, multilingual support, and search strategy planning, plus access to 1:1 training. Enterprise offers a higher level of management and post-sales support.