Plusgrade is a travel technology company that provides revenue and customer experience optimization solutions for airlines and cruise lines. The company was founded in 2009 by a team of airline industry veterans with the goal of helping airlines and cruise lines generate incremental revenue and improve customer satisfaction. Plusgrade's products include upgrade bidding, seat selection, and lounge access. The company's technology uses machine learning algorithms to analyze data from a variety of sources, including booking data, customer profiles, and historical trends. Plusgrade's mission is to help airlines and cruise lines unlock the full potential of their inventory and provide a better travel experience for their customers.