| Jasem Abdulsalam | | United States |
| Service Station Systems Inc. | Colleen Able | San Jose | CA |
| Service Station Systems Inc. | Mark Able | San Jose | CA |
| Performance Ink, Inc. | Greg Abrams | Columbia | SC |
| Yale University | Whyndam Abrams | New Haven | CT |
| Combustibles Ecologicos | Plinio Abreu | Santo Domingo | Dominican Republic |
| Gas Equipment & Services Co. Qatar Ltd. | Nihad Abu Dalu | Doha | Qatar |
| A. L. Prime Energy Consultant Inc. | Nasser Abu-Eid | Saugus | MA |
| Kasim Abuaisheh | Suwanee | GA |
| Adams Tank & Lift, Inc. | Andrew Adams | Clearwater | FL |
| Burns & McDonnell Engineering, Inc. | David Adams, PE | Bloomington | MN |
| Adams Tank & Lift, Inc. | Drew Adams | | United States |
| Petroleum Management, Inc. | Fred Adams | Crofton | MD |
| Ryan Adams | | United States |
| AFD Management Services | Gino Adderley | NASSAU | Bahamas |
| American Petroleum Sales & Service | Bryan Addison | Southaven | MS |
| Georgia DNR - Environmental Protection Division | Yasra Adowar | Atlanta | GA |
| Petroteknik AB | Jan Ageheim | Lidingö | Sweden |
| Guardian Fueling Technologies | Corey Agnew | Jacksonville | FL |
| Shields, Harper & Co., Inc. | Suhail Ahmad | | United States |
