The process of capturing contact information from trade show attendees who visit an exhibit, typically using badge scanning technology provided by show management or a third-party vendor. Lead retrieval systems allow booth staff to quickly record visitor data, append notes and follow-up flags, and export leads for post-show sales follow-up. An effective lead retrieval strategy, including staff training and a defined follow-up process, is essential for measuring and maximizing the return on investment of a trade show program.