Geographers' A–Z Map Company

[2] From the end of the war to Gross's death aboard the RMS Queen Mary on his way to England in 1958, Pearsall sometimes had to go to New York to take care of her father's American venture, Geographia Map Company.

[2] In 2004, the company shut its London showroom on Gray's Inn Road and, ten years later, the head office returned to Sevenoaks District by moving to Dunton Green.

[2] Another five years later, a range of maps were launched for personal digital assistants (PDAs) and mobile phones running Windows Pocket PC.

[2] The company launched a London A-Z street map app for smartphones running Symbian in 2005 and for iPhones three years later.

[2] Following a peak in sales during 2005, the significant technological developments in the industry saw the increased availability of free mapping and satellite navigation, and the demand for paper production rapidly declined – ultimately resulting in the company's restructuring in 2013.

[2][6] In the mid-2010s, Geographers' A–Z Map Company was producing digital data[7][8][9] used by charities like London's Air Ambulance,[10] public organisations, and private business.

[11] The role of Phyllis Pearsall, daughter of Alexander Gross, in the creation of the Geographers' Map Company and its flagship The A-Z Street Atlas has frequently been overstated, from her obituary in the New York Times calling her the "Creator of 'A to Z' London Maps"[12] to a BBC article celebrating her 100th anniversary claiming she created "the first A-Z", completely eliding her father's earlier work.

[14] London ephemera collector and researcher Peter Berthoud dates the legend to the late 1980s but was unable to find its source.