HCSS has a small but dedicated staff of around 25 people from different countries. Many of them are graduates from major universities in the US, France, the UK, the Netherlands and elsewhere. Together, they contribute, in-depth expertise in political science, law, sociology, history, management sciences, economics, statistics and area studies, as well as language skills covering Dutch, English, French, German, Russian and Spanish. Apart from the in-house staff, HCSS also has a network of non-resident experts, which includes some prominent journalists, politicians and scholars.