Organization: Any kind of organization. The Organization class represents a kind of Agent corresponding to social instititutions such as companies, societies etc.
About
sdt.net (sdt.net AG, now operating as a brand of TNG Stadtnetz GmbH) is an ISP and Network Operator that deploys, owns, and sells broadband internet (primarily full-fibre FTTH/Glasfaser, with historical VDSL), telephony, and related services directly to residential and business customers in Baden-Württemberg; acquired by TNG Stadtnetz GmbH in July 2023. (Source), (Source).