| Conference | Deadline | Date | Country |
| 1.10th International Conference on Building Materials and Materials Engineering (ICBMM 2026) | 2026-09-15 | 2026-10-22 | Spain |
| 2.2026 International Conference on Structural and Civil Engineering(ICSCE 2026) | 2026-09-15 | 2026-10-22 | Spain |
| 3.7th International Conference on Computer Science, Engineering, and Education (CSEE 2026) | 2026-08-10 | 2026-09-16 | Spain |
| 4.17th International Conference on Distance Learning and Education (ICDLE 2026) | 2026-08-10 | 2026-09-16 | Spain |
| 5.56th BARCELONA International Conference on Science, Engineering & Technology (BSET-26) July 15-17, 2026 Barcelona (Spain) | 2026-07-01 | 2026-07-15 | Spain |
| 6.52nd BARCELONA World Conference on Research in Chemical, Biological & Environmental Sciences (BCBES-26) July 15-17, 2026 Barcelona (Spain) | 2026-07-01 | 2026-07-15 | Spain |
| 7.38th BARCELONA International Conference on Civil and Environmental Engineering Research (BCEER-26) scheduled on July 15-17, 2026 Barcelona (Spain) | 2026-07-01 | 2026-07-15 | Spain |
| 8.56th BARCELONA International Conference on “Languages, Literature, Humanities & Social Sciences” (BLLHS-26) | 2026-07-01 | 2026-07-15 | Spain |
| 9.53rd BARCELONA World Conference on AI, Energy & Industrial Engineering (AIEIE-26) July 15-17, 2026 Barcelona (Spain) | 2026-07-01 | 2026-07-15 | Spain |
| 10.53rd BARCELONA International Congress on Research in Biology, Microbiology and Medical Sciences (RBMMS-26) July 15-17, 2026 Barcelona (Spain) | 2026-07-01 | 2026-07-15 | Spain |
| 11.54th BARCELONA International Congress on Education and Business Studies (BEDBS-26) July 15-17, 2026 Barcelona (Spain) | 2026-07-01 | 2026-07-15 | Spain |
| 12.2nd INTERNATIONAL CONFERENCE ON ECONOMIC GROWTH, MANAGEMENT, TECHNOLOGICAL ADVANCEMENTS AND ENGINEERING INNOVATIONS | 2026-06-10 | 2026-06-20 | Spain |
| 13.International Conference on Technology Innovations, Environment, Climate Change, and Healthcare | 2026-06-10 | 2026-06-20 | Spain |
| 14.4th International Conference on Automation and Mechatronics Engineering(ICAME 2026) | 2026-06-05 | 2026-07-13 | Spain |
| 15.16th International Conference on Environmental Engineering and Applications(ICEEA 2026) | 2026-04-20 | 2026-05-29 | Spain |
| 16.10th International Conference on Structure and Civil Engineering Research(ICSCER 2026) | 2026-04-20 | 2026-05-29 | Spain |
| 17.11th International Conference on Energy Materials and Applications(ICEMA 2026) | 2026-04-10 | 2026-05-20 | Spain |
| 18.11th International Conference on Sustainable and Renewable Energy Engineering (ICSREE 2026) | 2026-04-10 | 2026-05-20 | Spain |
| 19.24th 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 |
| 20.24th 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 |
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