| | | | |
| Narendran | Unknown | India | MLA II • |
| Asyhadi | PT. Pembangkitan Jawa Bali (PJB) | Indonesia | MLA I • |
| Endriastuti | Petrolab Services | Indonesia | MLA II • |
| Nabila | PT Pertamina | Indonesia | MLA I • |
| Mohamed Abd El-Rady Awad | RITEC - The Condition Monitoring Company | Egypt | MLA I • |
| Julio Cesar da Costa Andrade | Gerdau | Brazil | MLT I • |
| Antonio Manoel da Silva Neto | Copebras | Brazil | MLT I • |
| Sharizan Bin Ramli | Malaysian Refining Company SDN BHD | Malaysia | MLA I • |
| Hanuman Prasad Reddy Madapati | Sabic | Saudi Arabia | MLA I • |
| Khairil Izuan Ahmad Tarmidzi | SVTT Resources Sdn Bhd | Malaysia | MLA II • |
| Rahul Vashisht | Indian Oil Corporation Ltd | India | MLA I • MLA II • |
| Vibhor . | Tata Steel | India | MLA II • MLA III • |
| Aliff Shaffiq A Aziz | Malaysian Refining Company SDN BHD | Malaysia | MLA II • |
| M Khairul Rijal A Rahman | Malaysian Refining Company SDN BHD | Malaysia | MLA II • |
| Rose Ann A. Sardin | GNPower Mariveles Coal Plant Ltd. Co. | Philippines | MLA II • |
| Viggo Aanonsen | MHWirth | Norway | MLA I • |
| Lars Aasen-Stranden | Invicta | Norway | MLA I • |
| Rodney Aastrom | Basin Electric Power Cooperative | USA | MLA I • MLA II • |
| Md Aatif | Maersk Oil Trading Lubricants | India | MLT I • MLA II • MLT II • MLA III • MLE • |
| Mohd Khairi Asyraf Ab Hamid | Kinsajasa Sdn. Bhd. | Malaysia | MLA II • |
| Muhammad Raqim Bin Ab Rahman | Pengerang Refining | Malaysia | MLA I • |
| Percy Daniel Abanto Medina | COGA | Peru | MLT I • |
| Haider Abbas | Thiess KMC | Canada | MLA I • |
| Feras Abbas | Unknown | Saudi Arabia | MLA I • |
| Waseem Abbas | QAFCO - Qatar Fertilizer Co | Qatar | MLT I • |
| Saleem Abbas | United Energy | Pakistan | MLA I • |
| Adnan Abbas Abdullah | Kuwait Oil Company | Kuwait | MLA I • |
| Elamin Abbashar | Afton Chemical Corporation | U.A.E. | MLA II • MLT I • |
| Earl Abbott | MartinFederal Consulting, LLC | USA | LLA II • |
| Al Motaz Bellah Ali Abd El Zaher | Petrobel | Egypt | MLA I • |
| Ahmed Adel Abd Elmoniem | Ezzsteel | Egypt | MLA I • |
| Omar Mohamed Abd Elsalam Aziz | Petromaint | Egypt | MLA I • |
| Elifazlin Binti Abd Fattah | Malaysian Refining Company SDN BHD | Malaysia | MLA II • |
| Ahmad Sofian Bin Abd Ghani | Enhanced Performance Solutions | Malaysia | MLA I • MLA II • MLA III • |
| Muhammad Khairul Syahir Bin Abd Hakim | Malaysian Refining Company SDN BHD | Malaysia | MLA II • |
| Ahmad Lokman Abd Rahim | Malakoff Corporation | Malaysia | MLA I • |
| Mohamad Tirmizi Bin Abd Rahman | Kaneka | Malaysia | MLT I • |
| Mohamed Ahmed Saber Abdelgawad | Rashid Petroleum Company | Egypt | MLA I • |
| Amr Mohamed Mahrous Abdelghani | Saudi Aramco | Saudi Arabia | MLA I • |
| Mostafa Mohamad Abdelhady | Petrobel | Egypt | MLA I • MLA II • |
| Abdelhamid Mosaad Abdelhamid | Atlasco Egypt | Egypt | MLA I • |
| Mahmoud Yahia Abdelkader | EPROM | Egypt | MLA I • MLA II • |
| Mahmoud Abdellatif | Unknown | Egypt | MLA I • |
| Mahmoud Ahmed Badr Abdelmaksoud | Titan Cement | Egypt | MLA I • |
| Hesham Fathy Abd-Elnaby | Unknown | Egypt | MLA I • |
| Mohamed Gamal Abd-El-Sadek | Enoc Lubricants & Grease Manufacturing Plant | U.A.E. | MLA II • |
| Mosab Abdelal Abden Mohamad | Oman Oil Marketing Company | Oman | MLT I • MLT II • MLA I • |
| Ahmed Mohamed Abdo | EPROM | Egypt | MLA I • |
| Mahmoud Abdou | Methanex | Egypt | MLA II • |
| Mohamed Abdalfatah Abdrabouh | Unknown | Egypt | MLA I • |
| Abdul Muis Abdul Gani | Pengerang Refining | Malaysia | MLA I • |
| Mohammed Abdul Ghafoor | German Mirror | U.A.E. | MLA II • MLT I • |
| Mohd Harizarul Azlan Abdul Halim Lau | Malakoff Corporation | Malaysia | MLA I • |
| Mohammad Faris Al Hanis Abdul Hamid | Malaysian Refining Company SDN BHD | Malaysia | MLA II • |
| Jamal Bin Abdul Jalal | Malaysian Refining Company SDN BHD | Malaysia | MLA I • |
| Mohd Fauzy Bin Abdul Latif | Kinsajasa Sdn. Bhd. | Malaysia | MLA II • |
| Muhammad Zaidun Bin Abdul Manaf | Malaysian Refining Company SDN BHD | Malaysia | MLA II • |
| Muhamad Hafiz Bin Abdul Manan | Malaysian Refining Company SDN BHD | Malaysia | MLA II • |
| Mohammad Najib Abdul Rahim | Malaysian Refining Company SDN BHD | Malaysia | MLA II • |
| Muhammad Lutfi Bin Abdul Rahman | Petroknowledge SDN BHD | Malaysia | MLA II • |
| Muhammad Rizam Bin Abdul Rahman | Malaysian Refining Company SDN BHD | Malaysia | MLA I • MLA II • |
| Khairil Ikhwan Abdul Rahman | Malaysian Refining Company SDN BHD | Malaysia | MLA I • |
| Mohd Amirullah Abdul Razak | Malaysian Refining Company SDN BHD | Malaysia | MLA II • |
| Mohammed Ali Abdul Razak | APSCO - Mobil | Saudi Arabia | MLA I • MLA II • MLT I • |
| Abdul Hafeez Bin Abdul Shukur | Malaysian Refining Company SDN BHD | Malaysia | MLA II • |
| Yusuf Abdulla | GPIC | Kingdom of Bahrain | MLA I • |
| Azhar Abdullah | Petronas Lubricants Marketing Sdn. Bhd. | Malaysia | MLA II • MLA III • MLE • |
| Mohd Nazri Abdullah | Kinsajasa Sdn. Bhd. | Malaysia | MLA II • |
| Nibusalam Puthenveettil Abdulsalam | Veolia Energy Gulf | U.A.E. | MLT I • |
| Sylvie Abingeneye | Laurentide Controls Ltd. | Canada | MLA I • MLT I • |
| Belal Ibrahim Aboelfetouh | John Crane | Egypt | MLA I • MLA II • |
| Kamal Ahmed Aboelkamal Ali | Petrobel | Egypt | MLA I • |
| Khalil Abouessabre | I Care Web | France | MLT I • MLA I • |
| Mohamed Elsayed Abouhashish | RITEC - The Condition Monitoring Company | Egypt | MLA I • |
| Mostafa Mohamed Aboulazm | Unknown | Egypt | MLA I • |
| Osama Abounasr | Mid Coast Solutions | USA | MLT I • |
| Abdallah Nader Abouzied | Petrobel | Egypt | MLA I • |
| Jason Abrams | Georgia Pacific | USA | MLA I • |
| Ammar Abdullah Abuassonoon | Saudi Aramco | Saudi Arabia | MLA I • MLA II • MLT I • |
| Mohammed Abubakr Abubakr Elrayes | Ezzsteel | Egypt | MLA I • |
| Muhannad AbuMilhah | Sabic | Saudi Arabia | MLA I • |
| Martin Acheampong | WearCheck Ghana | Ghana | LLA II • |
| Nnamdi Jude Achebe | Petrosave Integrated Services Ltd. | Nigeria | MLA I • MLA II • MLE • MLT I • MLT II • MLA III • |
| Alexa Dawn Ackermann | WTCC - Management Services (Waste Treatment Completion Company) | USA | MLE • MLT I • MLT II • |
| James Ackley | Shell Lubricants | USA | MLT I • MLA II • MLT II • |
| Julio Acosta | POLARIS Laboratories | USA | MLA II • |
| Kenji Adachi | Kansai Electric Power Company, Inc. | Japan | MLA II • |
| Karl Adam | Voestalpine Stahl GmbH | Austria | MLA II • |
| Mathias Adams | I-Care Deutschland GmbH | Germany | MLT I • |
| Timothy Adams | BYK USA, Inc. | USA | MLT I • MLA I • MLT II • |
| Clinton W. Adams | Schlumberger Technologies | USA | MLA I • MLT I • |
| Wade Adams | Domtar | USA | MLT I • |
| Kyle Edward Adams | DTE Energy | USA | MLA I • |
| Matthew Clyde Adams | Noria Corporation | USA | MLA I • MLA II • MLT I • MLA III • MLE • |
| William Bradlee Adams | ORourke Petroleum | USA | MLT I • |
| Lawrence Guy Adams IV | Genesis | USA | MLA I • |
| Andrew Adamsky | Packaging Corp of America | USA | MLA I • |
| Owoyemi Azeez Adeboye | Lafargeholcim | Nigeria | MLE • |
| Hussam Adeni | Petronum Trading | India | MLA I • |
| Tadese Steven Adeniyi | Chevron | Nigeria | MLT I • |