- IROWG-12 (30 August to 6 September 2028, Konventum, Helsingør (Elsinore), Denmark)
- IROWG-11 (10-16 September 2026, Seggau Castle, Austria)
- ROMEX-2 Workshop (25-27 February 2025, EUMETSAT, Darmstadt, Germany)
- IROWG-10 (12 – 18 September 2024, UCAR, Boulder, CO, US)
- ROMEX Workshop (17-19 April 2024, EUMETSAT, Darmstadt, Germany)
- IROWG 2024 intersession – group lead meeting (26 February 2024 virtual)
- IROWG-9 (8 – 14 September 2022, Seggau Castle, Austria)
- IROWG-8 (7 – 13 April 2021, Virtual)
- IROWG-7 (19 – 25 September 2019, Konventum, Helsingør (Elsinore), Denmark)
- IROWG-6 (21 – 27 September 2017, Estes Park, Colorado, USA)
- IROWG-5 (8 – 14 September 2016, Seggau Castle, Austria)
- IROWG-4 (16 – 22 of April 2015, Melbourne, Victoria, Australia )
- IROWG Space Weather Subgroup: Ionosphere-Atmosphere Coordination Workshop (3 October 2014, Boulder, Colorado, USA)
- IROWG-3 (5 – 11 September 2013, Seggau Castle, Austria)
- IROWG-2 (28 March – 3 April 2012, Estes Park, CO, USA)
- IROWG-1 (10 – 11 September 2010, Graz, Austria)
- Other RO workshops