On April 1, 1898, the company was established as a locksmith by George Groke. On April 1st 1998, Groke celebrated its 100th anniversary.   Groke is a pioneer of the aluminum industry in Germany. The company is one of the leading manufacturers in the building component industry and makes aluminum entrance doors using timeless modern designs and colors. However, classic styles are not neglected, as can be seen from the wide variety of different models. For generations the company has manufactured a wide range of durable, high-quality products at attractive prices, and it is also defending its market-leading position with flexibility and a reliable delivery service and by developing its own advanced aluminum profile system for entrance doors.