Appen is a public company that provides high-quality, human-annotated data for machine learning and artificial intelligence applications. Headquartered in Sydney, Australia, Appen operates in more than 130 countries with over 1 million remote workers. Founded in 1996 as a language services provider, Appen has expanded its services to include data annotation, data collection, transcription, and translation services. The company’s proprietary platform and quality control processes help ensure that data sets are accurate, reliable, and unbiased. Appen serves clients across a diverse range of industries, including technology, automotive, healthcare, and finance. The company’s clients include many of the world’s leading tech companies such as Google, Microsoft, and Facebook. In recent years, Appen has grown through strategic acquisitions, including Figure Eight, a platform for human-in-the-loop machine learning, and Leapforce, a provider of personalized search engine results. Appen continues to invest in cutting-edge technology and innovative solutions, positioning itself as a leader in the emerging field of artificial intelligence and machine learning. Appen was listed on the Australian Securities Exchange (ASX) in 2015 and has continued to experience strong growth, generating over AUD $700 million (USD $516 million) in revenue in 2020.