Is it proper to say John Smith is the CEO of ABC Company or John Smith is the CEO at ABC Company?
This tends to follow a convention of whether the position is definite or indefinite.
Ted's an important person; he's a CEO at ABC.
The CEO of ABC made an important statement today.
We also see "at" when highlighting a position within a subdivision of an organization.
He's the President of Human Resources at ABC.
protected by MetaEd♦ Nov 5 '18 at 19:02
Thank you for your interest in this question.
Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).
Would you like to answer one of these unanswered questions instead?