| 1711 | Aquaphon | Company Product |
| 1712 | Aquarium Chillers | Company Product |
| 1713 | Aquarium Supplies Retailers | Company Product |
| 1714 | Aquarium Supplies Wholesalers & Manufacturers | Company Product |
| 1715 | Aramid Packings | Company Product |
| 1716 | Arbitration | Company Product |
| 1717 | Arbors | Company Product |
| 1718 | Arc - Automatic Equipment | Company Product |
| 1719 | Arc - Engine Driven Equipment | Company Product |
| 1720 | Arc - Gas Metal (MIG/MAG) Welding Equipment | Company Product |
| 1721 | Arc - Gas Tungsten (TIG) Welding Equipment | Company Product |
| 1722 | Arc - Plasma Welding Equipment | Company Product |
| 1723 | Arc Erosion Disintegrators | Company Product |
| 1724 | Arc Flash Equipment | Company Product |
| 1725 | Arc Flash Protective Clothing Kits | Company Product |
| 1726 | Arc Stud Welding Equipment | Company Product |
| 1727 | Arc Welding Equipment | Company Product |
| 1728 | Arc Welding Machines | Company Product |
| 1729 | Arch Files | Company Product |
| 1730 | Architects | Company Product |
| 1731 | Architects' Supplies | Company Product |
| 1732 | Architectural & Glass Finishes Film | Company Product |
| 1733 | Architectural Coating | Company Product |
| 1734 | Architectural Coatings | Company Product |
| 1735 | Architectural Engineers | Company Product |
| 1736 | Architectural Finishes Film | Company Product |
| 1737 | Architectural Glass | Company Product |
| 1738 | Architectural Glasses | Company Product |
| 1739 | Architectural Graphic Systems | Company Product |
| 1740 | Architectural Illustrators | Company Product |