| 29 February - 5 March 2020 Los Angeles, California | USCAP 109th Annual Meeting (ISIMM 2nd Annual Complementary Society Symposium on March 2) |
| 2 June - 5 June 2020 Aalborg, Denmark CANCELLED | 4th NordiQC Conference on Applied Immunohistochemistry |
| 6 December - 8 December 2020 VIRTUAL EVENT | 32nd Congress of the ESP and XXXIII International Congress of the IAP |
