I did notice once that IKEA's governance scheme looked like an unusually sophisticated anti-tax structure. It now makes sense why the Swedes would be really interested in dodging taxes.
SAAB is publicly traded, however a majority(or nearly) of voting shares are held more or less directly by the Wallenberg family, they have investment/"power companies" as well as their family foundation(s) and control quite a few major companies here.
SAAB, Bosch, ThyssenKrup, and others are similarly structured.