A recent study [Ioannidis, Boyack, Baas, PLOS (2020)] classified 161,441 researchers from all fields and all countries as the most influent, considering their citations.

There are 8 PPGCosmo members that appear in the above list:

• Luca Amendola (Germany),
• Yi-Fu Cai (China), 
• Scott Dodelson (USA),
• Ruth Durrer (Switzerland), 
• Ilya Shapiro (Brazil),
• Alexei Starobinsky (Russia),
• David Wands (UK),
• Winfried Zimdahl (Brazil)​.