Thiers Issard was established in 1884 by Pierre Thiers, (1860–1929). He was part of a family of master razor makers. The Thiers family owned their own forge. The "Chart of the Jurande" or the Professional Guild Charter of the time lists at least three "Thiers" as master razor makers.
In 1870 Pierre Thiers started as an apprentice to a master razor maker and after twenty four years in the trade he had mastered the art well enough to become famous among the cognoscenti and connoisseurs of fine cutlery.
In 1884 Pierre Thiers established his own forge. He named his factory Thiers-Issard combining his last name and that of his wife as a way to differentiate himself from the rest of the family who owned similar businesses. From 1884 until his death in 1929 Pierre Thiers worked in his forge and died, reportedly, at work.
After his death, his son Pierre Thiers Jr. (1884–1962) assisted by his mother continued the family business. Pierre Thiers Jr. worked as an apprentice under his father and he was a skilled forger in his own right. As the business prospered more family members joined the company starting with Louis Thiers (1910–1985) and later by another Pierre Thiers (1914–1997).
In 1985 the Thiers Issard company was acquired by Gilles Reynewaeter.
