Zwick GmbH & Co. KG

Zwick began producing testing machines in Ulm-Einsingen, Germany, in 1938, growing over the following decades into one of the world’s leading manufacturers of materials testing machines.  In 1992 the company merged with the Roell Group. 

Toni Technik

The Zwick Roell AG has a holding in Toni Technik. Founded in 1876, "Toni" operates in partnership with the building materials industry throughout the world.

Acmel Labo

ACMEL Labo has been a member of the Zwick/Roell Group since 2002 and has developed a range of devices for testing cement and mortar.

Indentec

Indentec is part of Zwick Roell AG, which has a majority shareholding in the company. Established in 1976 to re-design a Rockwell hardness testing machine, Indentec has sold many thousands of machines.