[1] During the late 1990s, Herrenknecht built a TBM with a diameter of 14.20m, which was the largest in the world at that time, for a project to increase the capacity of the Elbe Tunnel in Hamburg, Germany (completed in 2002).

[7] In December 2012, Herrenknecht acquired Techni-Métal Systemes SAS, a French manufacturer of tunnel supply vehicles; the move expanded the company's portfolio to comprise all technical equipment and services relating to TBMs.

[14] During 2014, the company reported a record level of orders at 1.2 billion euros, which was primarily attributed to its involvement in the construction of multiple metro expansion schemes across the Middle East and Asia.

[15][16] In the mid 2010s, eight Herrenknecht-built TBMs, valued at £10 million, were deployed to bore out a 13 mile stretch of tunnel for Crossrail, a mostly-underground commuter railway line beneath London.

[21][22] During 2023, Herrenknecht acquired a majority stake in the geothermal energy specialist H. Anger’s Söhne Bohr- und Brunnenbaugesellschaft mbH in order to expand the company’s portfolio of automated drilling rigs and equipment.

[23] The firm has also investigated the use of advanced control systems, guided by artificial intelligence, in order to minimise noise levels generated from geothermal energy schemes.

[25] In mining, it offers a range of automation technology including underground vehicles, conveyor belts and monitoring systems, and shaft-drilling equipment.