i've seen companies forbid the use of ORMs by fear that developpers will abuse lazy loading and collapse the db instead of using inner joins ( which any decent orm is able to do btw).
It could make sense in some context, and i'm pretty sure that any sufficiently advanced service has so many custom and optimized queries that an ORM doesn't make a difference.
however IMHO, ORMs do play a very important role in the beginning of the project when prototyping screens and apis, and when rapid iteration is important. It isn't a coincidence that RoR advertized active record as much, that symfony use doctrine in all tutorials, and that java , .net and node.js frameworks all include an ORM component.
