Burke's Peerage Limited is a British genealogical publisher founded in 1826, when the Anglo-Irish genealogist John Burke began releasing books devoted to the ancestry and heraldry of the peerage, baronetage, knightage and landed gentry of Great Britain and Ireland. His first publication, a Genealogical and Heraldic Dictionary of the Peerage and Baronetage of the United Kingdom, was updated sporadically until 1847, when the company began publishing new editions every year as Burke's Peerage, Baronetage and Knightage.

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.