Compensation numbers on Glassdoor seem way too high (see pic).
Besides that, Accenture seems to be very well positioned in Germany (top 5 in virtually every industry and service type):
https://www.brandeins.de/magazine/brand-eins-thema/unternehmensberater-2020/interaktives-ranking-und-bestenliste
https://www.cio.de/a/die-top-10-unternehmensberatungen-in-deutschland,3602899