ThyssenKrupp Marine Systems of Germany (often abbreviated TKMS) is a group and holding company of providers of naval vessels, surface ships and submarines.

It was founded when large industrial conglomerate ThyssenKrupp acquired Howaldtswerke-Deutsche Werft on January 5, 2005.

[2] In 2021, TKMS received the biggest order in its history, worth €5.5 billion for six identical Type 212CD submarines (in partnership with Kongsberg Gruppen) for the German and Norwegian navies.

[3][4] In 2023, the German government signalled that it was prepared to back a sale of TKMS by taking a supporting minority stake.

In June 2024, private equity firm Carlyle and German development bank KfW entered into negotiations to jointly acquire a majority stake in TKMS.