Appen Limited is an Australian company that provides data solutions and services for machine learning and artificial intelligence applications. They work with technology companies, auto manufacturers, and government agencies in Australia, the United States, and internationally. The company operates through two segments, Relevance and Speech and Image, which provide annotated training data used to enhance the performance of search engines, social media, e-commerce applications, and voice interface, translation, text analysis, AR/VR, and image perception systems. The company was founded in 1996 and changed its name from Appen Holdings Pty Limited to Appen Limited in 2014.