| Conference | Deadline | Date | Country |
| 1.32nd ISTANBUL World Congress on Disaster Management, Globalization & Sustainable Development (DMGSD-26) scheduled on April 29-May 1, 2026 Istanbul (Türkiye) | 2026-04-15 | 2026-04-29 | Turkey |
| 2.53rd HELSINKI World Congress on Advances in Science, Engineering & Technology (HWASET-26) scheduled on April 27-29, 2026 Helsinki (Finland) | 2026-04-01 | 2026-04-27 | Finland |
| 3.35th HELSINKI World Congress on Mining, Material and Metallurgical Engineering (WCM3E-26) scheduled on April 27-29, 2026 Helsinki (Finland) | 2026-04-01 | 2026-04-27 | Finland |
| 4.51st HELSINKI World Conference on Sustainable Agriculture, Biodiversity & Public Health (SABPH-26) April 27-30, 2026 Helsinki (Finland) | 2026-04-01 | 2026-04-27 | Finland |
| 5.39th ISTANBUL World Congress on Advances in Science, Engineering & Technology (WASET-26) scheduled on April 29-May 1, 2026 Istanbul (Türkiye) | 2026-04-01 | 2026-04-29 | Turkey |
| 6.24th BARCELONA World Conference on Advances in Electrical, Electronics, and Computing Systems (AE2CS-26) scheduled on April 20-22, 2026 Barcelona (Spain) | 2026-04-01 | 2026-04-20 | Spain |
| 7.24th BARCELONA World Conference on Advances in Electrical, Electronics, and Computing Systems (AE2CS-26) April 20-22, 2026 Barcelona (Spain) | 2026-04-01 | 2026-04-20 | Spain |
| 8.19th BARCELONA World Conference on Innovations in Mechanics, Composites & Manufacturing Technology (IMCMT-26) scheduled on April 20-22, 2026 Barcelona (Spain) | 2026-04-01 | 2026-04-20 | Spain |
| 9.31st BARCELONA World Congress on Innovations in Educational Technology (BEdTech-26) scheduled on April 20-22, 2026 Barcelona (Spain) | 2026-04-01 | 2026-04-20 | Spain |
| 10.40th BARCELONA World Congress on Science, Engineering & Technology (NCPDT-26) | 2026-04-01 | 2026-04-20 | Spain |
| 11.44th BANGKOK World Congress on “Marketing & Business Studies ” (WCMBS-25) | 2026-04-01 | 2026-04-20 | Spain |
| 12.68th BARCELONA World Congress on Green Chemical Engineering, Energy & Environmental Sustainability (GCE2S-26) | 2026-04-01 | 2026-04-20 | Spain |
| 13.59th BARCELONA World Congress on Humanities & Social Sciences (WCHSS-26) | 2026-04-01 | 2026-04-20 | Spain |
| 14.52nd BARCELONA World Congress on Sustainable Development (BWCSD-26) | 2026-04-01 | 2026-04-20 | Spain |
| 15.48th PARIS World Congress on “Green Chemical Engineering, Energy & Environmental Sustainability" (GCEEES-26) scheduled on April 15-17, 2026 Paris (France) | 2026-03-20 | 2026-04-15 | France |
| 16.52nd PARIS World Congress on “Marketing, Business & Management Studies” (WCBMS-26) scheduled on April 15-17, 2026 Paris (France) | 2026-03-20 | 2026-04-15 | France |
| 17.2026 6th International Conference on Internet of Things and Smart City (IoTSC 2026) | 2026-03-20 | 2026-03-27 | China |
| 18.7th International Conference on Block chain and Internet of Things Applications (BIoT 2026) | 2026-03-15 | 2026-06-27 | Denmark |
| 19.The 11th World Disability and Rehabilitation conference 2026 | 2026-03-14 | 2026-08-10 | Indonesia |
| 20.8th International Conference on Internet of Things (CIoT 2026) | 2026-03-14 | 2026-07-16 | U.K. |
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