Son of Thomas Zach was born on the 30th of march 1859 in Budapest(Hungary). In Vienna he attended from 1872-1874 the conservatory of music (for violin playing). It is not known whereabout he learned the violinmakíng. Until 1887 he is working with his father, and is overtaking the workshop in 1888. At the beginning the shop had a good reputation doing a good business. Carl Zach had the title of beeing a supplier for the royals in Vienna and Greece. He founded 1897 a separate company with the aim to commercialize 2 inventions of him. Due to this foundation together with his expensive way of living he lost his complete property in the following year 1898. After staying in Brussels 1902 and several other places in Europe his further way until his death 1918 in London is unknown.
He build his instruments mainly after Stradivari model, with rather flat archings. The scrolls are often with black edges (french style). The varnish vary from orange-brown to red-brown colors. Due to a big staff in his workshop many instruments have been made varying in the quality. They are not comparable with his own works.
1884 he donated to the brothers Hans and Josef Schrammel, (members of the famous viennese traditional music quartet) two violins he made. The instruments had, instead of the normal scroll, both a carved porträt head of the two brothers.
1891 he donated two Violins to the violinists (Steher & Reisinger) of the viennes so called Grinzinger Quartet.
1892 he delivered due to orders one violin each to her majesty the Queen Victoria of England, and to King Georg I of Greece.
1892 on the occasion of the International viennese theater and music exhibition he handed a violin over to the emperor of Austria Franz Josef I, which he donated personaly to him. This instrument again has instead of the normal scroll a carved portät head of the emperor,aswell as an inscription around the whole ribs saying: FROM ALL STRINGS COMES THE SOUND INTO ALL HARDS THE MELODY THE OLD FRANZ JOSEF I GOD BLESS HIM. Especially in Vienna Carl Zach will stay in mind, not only in expert circles, as a maker of the so called Schrammel Violins and the Emperor Violin.