"I suspect that IBM was involved in creating a national database of citizens. How said database was later cherrypicked and sorted was not up to IBM"
The author of a book about their role says otherwise, unsurprisingly
"Newly-released documents expose more explicitly the details of IBM’s pivotal role in the Holocaust — all six phases: identification, expulsion from society, confiscation, ghettoization, deportation, and even extermination. Moreover, the documents portray with crystal clarity the personal involvement and micro-management of IBM president Thomas J. Watson in the company’s co-planning and co-organizing of Hitler’s campaign to destroy the Jews"
IBM’s twelve-year alliance with the Third Reich was first revealed in my book IBM and the Holocaust, published simultaneously in 40 countries in February 2001. It was based on some 20,000 documents drawn from archives in seven countries. IBM never denied any of the information in the book; and despite thousands of media and communal requests, as well as published articles, the company has remained silent"
"The punch cards, machinery, training, servicing, and special project work, such as population census and identification, was managed directly by IBM headquarters in New York, and later through its subsidiaries in Germany, known as Deutsche Hollerith-Maschinen Gesellschaft (DEHOMAG), Poland, Holland, France, Switzerland, and other European countries.
Among the punch cards published are two for the SS, including one for the SS Rassenamt, or Race Office, which specialized in racial selections and coordinated with many other Reich offices. A third card was custom-crafted by IBM for Richard Korherr, a top Nazi statistician and expert in Jewish demographics who reported directly to Reichsführer Heinrich Himmler and who also worked with Adolf Eichmann. Himmler and Eichmann were architects of the extermination phase of the Holocaust. All three punch cards bear the proud indicia of IBM’s German subsidiary, DEHOMAG. They illustrate the nature of the end users who relied upon IBM’s information technology"