Nokia Corporation is a Finnish multinational telecommunication, information technology, and consumer electronics company, founded in 1865. Nokia's headquarters are in Espoo, in the greater Helsinki metropolitan area in Finland. In 2018, Nokia employed approximately 103,000 people across over 100 countries, did business in more than 130 countries, and reported annual revenues of around €23 billion. Nokia is a public limited company listed on the Helsinki Stock Exchange and New York Stock Exchange. It is the world's 415th-largest company measured by 2016 revenues according to the Fortune Global 500, having peaked at 85th place in 2009. It is a component of the Euro Stoxx 50 stock market index.

The company has operated in various industries over the past 150 years. It was founded as a pulp mill and had long been associated with rubber and cables, but since the 1990s has focused on large-scale telecommunications infrastructures, technology development, and licensing. Nokia is a major contributor to the mobile telephony industry, having assisted in the development of the GSM (Global System for Mobile Communications), 3G (third-generation) and LTE (Long-Term Evolution) standards (and currently in 5G, fifth generation), and was once the largest worldwide vendor of mobile phones and smartphones. After a partnership with Microsoft and subsequent market struggles, its mobile phone business was bought by Microsoft, creating Microsoft Mobile as its successor in 2014.

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