Officiers:
| 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 |
| Dr. Paul Connoly | UK | 2016 |
| Dr. Corrina Hoose | Germany | 2016 |
| Dr. Martina Krämer | Germany | 2016 |
| Dr. Chunsong Lu | China | 2016 |
| Dr. Hugh Morrison | USA | 2016 |
| Dr. Narihiro Orikasa | Japan | 2016 |
| Dr. Alfons Schwarzenboeck | France | 2016 |
| Dr. Philip Stier | UK | 2016 |
| Dr. Trude Storelvmon | USA | 2016 |
| Dr. Julie Thériault | Canada | 2016 |
| Dr. Susan Van den Heever | USA | 2016 |
| Dr. Heike Wex | Germany | 2016 |
| Dr. Seong Soo Yum | Korea | 2016 |
| Dr. Paul Field | UK | 2012 |
| Dr. C. Franklin | Australia | 2012 |
| Dr. Ismail Gultepe | Canada | 2012 |
| Dr. Ilan Koren | Israel | 2012 |
| Dr. Ottmar Möhler | Germany | 2012 |
| Dr. Vistor Petrov | Russia | 2012 |
| Dr. Thara Prabhakaran | India | 2012 |
| Dr. Robert Rauber | USA | 2012 |
| Dr. Rob Wood | USA | 2012 |
| Dr. Huiwen Xue | China | 2012 |
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 | Germany | 1996 |
| Dr. John Hallett (Deceased) | USA | 2004 |
| Prof. Peter V. Hobbs (deceased) | USA | 2004 |
| Prof. Roland List (Deceased) | Canada | 2008 |
| Prof. John Latham | UK | 2012 |
| Prof. Zev Levin | Israel | 2016 |
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 |