Officers:
| Prof. Greg McFarquhar – President | USA | 2021 |
| Prof. Heike Wex – Vice President | Germany | 2021 |
| Prof. Martina Krämer – Secretary-Treasurer | Germany | 2021 |
Members:
| Dr. Rachel Albrecht | Brazil | 2016 |
| Prof. Paul Connoly | UK | 2016 |
| Prof. Corinna Hoose | Germany | 2016 |
| Prof. Chunsong Lu | China | 2016 |
| Dr. Hugh Morrison | USA | 2016 |
| Dr. Narihiro Orikasa | Japan | 2016 |
| Prof, Alfons Schwarzenboeck | France | 2016 |
| Prof. Philip Stier | UK | 2016 |
| Prof. Trude Storelvmo | Norway | 2016 |
| Prof. Julie Thériault | Canada | 2016 |
| Prof. Van den Heever | USA | 2016 |
| Prof. Seong Soo Yum | Korea | 2016 |
| Dr. Ali Abshaev | Russia | 2021 |
| Dr. Orit Altaratz | Israel | 2021 |
| Prof. Eldo Avila | Argentina | 2021 |
| Prof. Henrique Barbosa | Brazil | 2021 |
| Dr. Jiwen Fan | USA | 2021 |
| Prof. Yi Huang | Australia | 2021 |
| Dr. Zamin Kanji | Switzerland | 2021 |
| Dr. Mahen Konwar | India | 2021 |
| Prof. Luis Ladino | Mexico | 2021 |
| Prof. Yanluan Lin | China | 2021 |
| Dr. Jason Milbrandt | Canada | 2021 |
| Prof. David Noone | New Zealand | 2021 |
| Prof. Akinola Oluseyi | Nigeria | 2021 |
| Prof. Odran Sourdeval | France | 2021 |
| Prof. Peter Spichtinger | Germany | 2021 |
Ex officio member:
| Dr. Ottmar Möhler (Germany) | ICCP-Committee on Nucleation and Atmospheric Aerosols |
Honorary members:
| Dr. Horace Byers (deceased) | USA | 1992 |
| Sir John Mason (deceased) | UK | 1992 |
| Prof. Hans Pruppacher (deceased) | Germany | 1996 |
| Dr. John Hallett (deceased) | USA | 2004 |
| Prof. Peter V. Hobbs (deceased) | USA | 2004 |
| Prof. Roland List (deceased) | Canada | 2008 |
| Prof. John Latham (deceased) | UK | 2012 |
| Prof. Zev Levin | Israel | 2016 |
| Prof. William R. Cotton | USA | 2020 |
Past presidents:
| Prof. Peter V. Hobbs | USA | 1984-1992 |
| Prof. Peter R. Jonas | UK | 1992-1996 |
| Dr. George A. Isaac | Canada | 1996-2004 |
| Dr. Zev Levin | Israel | 2004-2012 |
| Prof. Andrea Flossmann | France | 2012-2021 |