The site topexecutivesearchfirms.com ranks retained executive search firms based on a complex algorithmic model using proprietary weighting of the following criteria: annual revenue, number of placements, number of ancillary services or practice areas, level of searches handled by average salary, completion ratio, average time to complete, stick rate, client satisfaction (testimonials/votes), social media presence, and executive thought leadership. They also negatively weight adverse circumstances (e.g. candidate exited based upon discovery which the search firm should have filtered, client litigation, poaching, etc.).
The top 5 results for 2012-13 are as follows:
Korn Ferry International
View the Top 20 countdown style list at:
You can also access details regarding the firms’ practice areas, chief executives, and major companies with whom they have worked. All of this information will be useful in learning more about a firm that may have contacted you, or in determining to whom it would make most sense to submit your executive resume.