Information on The List was supplied by individual companies and company representatives through questionnaires and could not be independently verified by the St. Louis Business Journal.

Local is defined as St. Louis, St. Charles, Lincoln, Warren, Franklin, Washington and Jefferson counties and the city of St. Louis in Missouri; and St. Clair, Madison, Jersey, Clinton, Calhoun, Macoupin, Bond and Monroe counties in Illinois.

This List ranks executive search firms by local retained placements made in @PY@. For the purpose of this listing, retained applies to a recruiter/firm that is paid regardless of the results of the search.