Wikipedia
Fischerwerke
fischerwerke GmbH & Co. KG is a family-owned German multinational manufacturer best known for its fastening products for the construction and DIY industry. The company also has divisions in the Automotive, Toy, and Consulting industries. Fischer is considered to be a typical example of a large-sized mittelstand firm. The name of the firm is not written with a capital 'f', which is an oddity especially in a German context where all nouns are generally written with an initial capital.
The company was founded in 1948 by Artur Fischer and enjoyed early success due to high demand for the original S-Plug, which is still in production today. Ownership now belongs to his son, Klaus Fischer (article in German).