| Conference | Deadline | Date | Country |
| 1.48th LISBON International Conference on “Chemical, Biological, Environmental & Natural Sciences” (CBESN-26) scheduled on Feb. 11-13, 2026 Lisbon (Portugal) | 2026-01-20 | 2026-02-11 | Portugal |
| 2.33rd LISBON International Conference on Agricultural, Biological and Environmental Sustainability (LABES-26) scheduled on Feb. 11-13, 2026 Lisbon (Portugal) | 2026-01-20 | 2026-02-11 | Portugal |
| 3.62nd LISBON International Conference on “Humanities, Social Sciences & Business Studies” (LHSSB-26) scheduled on Feb. 11-13, 2026 Lisbon (Portugal) | 2026-01-20 | 2026-02-11 | Portugal |
| 4.58th LISBON World Conference on “LGBTQ+, Gender, Sexuality & Identity” (LGBTQGSI-26) Feb. 11-13, 2026 Lisbon (Portugal) | 2026-01-20 | 2026-02-11 | Portugal |
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