The phrase "top officials" refers to the highest-ranking individuals within an organization or government. These are the people who hold positions of authority and have decision-making power. Full definition
Top officials of companies on the list are banned from contributing to candidates for statewide office or state political committees. (courant.com)
Her departure follows those of other top officials from the housing authority. (nytimes.com)
And now, preparations for the next school year are underway, with top officials opening up bids for new standardized testing vendors and contracts. (c-sail.org)