Appen Butler Hill (formerly Appen) is truly multi-lingual. With speech and language expertise in about 80 languages, the company provides software and services for businesses and government agencies for such purposes as machine translation, speech synthesis, text-to-speech, and natural language processing applications. It also develops and licenses databases and phonetic dictionaries; provides speech and language data collection services; offers acoustic, phonetic, and orthographic transcription; and develops custom speech software. Customers have included Avaya, Microsoft, and Toshiba. Appen was founded in 1996 by director Julie Vonwiller; the company name was changed in 2011 when it merged with Butler Hill Group.