The top five executive recruiting firms by revenue are Korn Ferry, Spencer Stuart, Heidrick & Struggles, Russell Reynolds Associates, and Egon Zehnder. Each of these firms made an estimated $700 million in revenues and had 300+ consultants in 2020. These five continued to dominate in 2021 but Egon and Heidrick traded positions in the ranking. All of the firms experienced reduced revenues over those ranked in the prior survey. Forbes' annual survey also lists Korn Ferry as the best, as do others.