Debrett's is a British professional coaching company, publisher and authority on etiquette and behaviour, founded in 1769 with the publication of the first edition of The New Peerage. The company takes its name from its founder, John Debrett.

The Social Register is a semi-annual publication in the United States that indexes the members of American high society. First published in the 1880s by newspaper columnist Louis Keller, it was later acquired by Malcolm Forbes. Since 2014, it has been owned by Christopher Wolf.