| 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 |
| 5.37th LISBON Global Congress on Advances in Engineering, Computing & Cybersecurity (AECC-25) Dec. 10-12, 2025 Lisbon (Portugal) | 2025-11-10 | 2025-12-10 | Portugal |
| 6.48th LISBON International Congress on Nanotechnology, Materials & Environmental Sciences (NMES-25) | 2025-11-10 | 2025-12-10 | Portugal |
| 7.50th LISBON International Congress on Music, Psychology, Philosophy and Social Sciences (MPPSS-25) | 2025-11-10 | 2025-12-10 | Portugal |
| 8.43rd LISBON Global Congress on “Marketing, Business & Management Studies” (LMBMS-25) | 2025-11-10 | 2025-12-10 | Portugal |
| 9.65th LISBON International Congress on Research in Science, Technology, Social Sciences & Education (LSTSSE-25) | 2025-11-10 | 2025-12-10 | Portugal |
| 10.57th LISBON Global Congress on “Chemical, Biological, Environment & Medical Sciences” (LCBEM-25) Dec. 10-12, 2025 Lisbon (Portugal) | 2025-11-10 | 2025-12-10 | Portugal |
| 11.55th LISBON World Congress on Humanities & Social Sciences (WCHSS-25) Dec. 10-12, 2025 Lisbon (Portugal) | 2025-11-10 | 2025-12-10 | Portugal |
| 12.48th LISBON Global Congress on Cultural, Social & Economic Sustainability (LCSES-25) Dec. 10-12, 2025 Lisbon (Portugal) | 2025-11-10 | 2025-12-10 | Portugal |
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