Your website, video, and social are the first thing customers judge. When they look dated or scattered, good prospects quietly walk away.
The best industrial marketing agency for a given company is the one that scores highest on evidence you can verify: catalog and spec depth on sites they built, how submitted RFQs route internally, rankings on capability plus geography terms, on-site production capability, who writes the copy, and reporting tied to quote volume. Published rankings are usually written by the agencies listed in them, so score candidates yourself against a weighted rubric.