A newly appointed communications director once called asking for an introduction. He wanted the name of whoever managed Wikipedia's coverage of his industry, the way a trade magazine has a section editor and a newspaper has an advertising desk. He was prepared to brief that person properly, background and all. We had to explain that no such person exists, and that the question itself was the thing worth discussing.
Wikipedia publishes without a publisher in the ordinary sense. No board approves an article before it goes live. No masthead assigns an editor to a sector. Whoever happens to be watching a page when a change comes in, sometimes a specialist who has followed the subject for years, sometimes someone who arrived an hour earlier from an unrelated dispute, decides in the moment whether to accept it, undo it, or open a discussion.
No one, no matter how important they are in real life, has the right to act as though they own a particular article.
The absence of a fixed authority cuts in both directions. No one can be won over once, in a private conversation, and have the matter settled for good; an editor sympathetic today may be gone by next month, and the next person to arrive reopens the question from the sources, not from any prior understanding. But equally, no one, however senior in the subject's own field, gets to fix a page by decree. A university's communications office carries no more procedural standing on that university's article than an account that registered ten minutes ago; both are read against the same sourcing.
What stands in for hierarchy is a paper trail. Every substantive decision leaves one: a comment on the article's talk page, an edit summary, a thread at a noticeboard, timestamped and kept, legible to someone reading it five years later who was never in the room. That visible record is the actual mechanism of accountability here, doing the job a chain of command would do elsewhere.
So we stopped looking for a contact and learned to work the process that already exists: a declared account, a request posted on the article's talk page, a case built from independent sources and addressed to whoever happens to be reading. It is slower than a phone call. It is also the only door that was ever open.