The type foundry began operations in July 1818 by silversmith and mechanic William Garnett and toolmaker John Stephenson, financially supported by James Blake.

In December 2007, Stephenson & Blake acquired Nu-Gauge engineering, who are a major manufacturer to the glass gauge industry in the United Kingdom.

Nu-Gauge engineering has been merged to within Stephenson & Blake, and will make any type of gauge to order with extremely tight tolerances.

Stephenson & Blake now manufacture the whole of Caslon's High Frequency Welding Rule range alongside their own inventory.

[10] Sheffield City Council uses a corporate font, Wayfarer, commissioned from designer Jeremy Tankard that is based on Stephenson Blake's sans-serif Granby and Grotesque No.