The beatification process commenced on 19 January 1988 after the Congregation for the Causes of Saints issued the official "nihil obstat" to the cause and titled Gross as a Servant of God; but it would be a decade until the actual diocesan phase of investigation opened in the Essen diocese on 12 November 1996 which later closed on 12 October 1997.
The C.C.S. validated the diocesan phase in Rome on 13 November 1998 and received the Positio dossier in 2000 for investigation.
The theologians approved the dossier's contents on 25 May 2001 as did the members of the C.C.S. on 3 July 2001.
Pope John Paul II confirmed on 7 July 2001 that Gross had been killed "in odium fidei" (in hatred of the faith) and so beatified Gross in Saint Peter's Square on 7 October 2001.

The current postulator for the cause (since 1996) is Dr. Andrea Ambrosi.

There is a museum dedicated to Nikolaus Gross in Niederwenigern.
In 1948 a street in Cologne was named in his honor and streets were named after him in places such as Berlin and Essen amongst others.
A chapel was dedicated to him on 10 October 2004, and a memorial stone in Gelsenkirchen-Buer on 26 October 2003.
The beatification process commenced on 19 January 1988 after the Congregation for the Causes of Saints issued the official "nihil obstat" to the cause and titled Gross as a Servant of God; but it would be a decade until the actual diocesan phase of investigation opened in the Essen diocese on 12 November 1996 which later closed on 12 October 1997. The C.C.S. validated the diocesan phase in Rome on 13 November 1998 and received the Positio dossier in 2000 for investigation. The theologians approved the dossier's contents on 25 May 2001 as did the members of the C.C.S. on 3 July 2001. Pope John Paul II confirmed on 7 July 2001 that Gross had been killed "in odium fidei" (in hatred of the faith) and so beatified Gross in Saint Peter's Square on 7 October 2001.
The current postulator for the cause (since 1996) is Dr. Andrea Ambrosi.
There is a museum dedicated to Nikolaus Gross in Niederwenigern. In 1948 a street in Cologne was named in his honor and streets were named after him in places such as Berlin and Essen amongst others. A chapel was dedicated to him on 10 October 2004, and a memorial stone in Gelsenkirchen-Buer on 26 October 2003.
Nikolaus Gross