Thomas Dean's publishing company was located at Threadneedle Street from c. 1800-1855, at Ludgate Hill from 1856-1870, and at Fleet Street from 1871-1890. He published under the name Thomas Dean from c. 1800-1810, as Dean and Munday from 1811-1842, as Dean & Company from 1843-1846, and as Dean & Son from 1847 onward.