There are multiple definitions - click on the translation that matches your context.

Beirat

Substantiv

partial

advisory committee

noun

Comparative law notes

Germany

Another alternative would be to use the English phrase "advisory board", which is likewise a body that gives non-binding strategic advice to the management of a corporation, organization, or foundation.

Definitions of advisory committee

English

a group of people brought together to make suggestions regarding certain questions to an executive or legislative body or official

The advisory committee will be appointed by the mayor and city council.