| Category | Contains the number of abbreviations |
|---|---|
| Accounting | 3917 |
| Advertising | 235 |
| Advisory | 671 |
| AMEX Symbols | 932 |
| ASX Symbols | 4007 |
| Auditing | 153 |
| Banking | 2823 |
| Career | 965 |
| Certifications | 755 |
| Certifications & Diplomas | 1706 |
| Companies & Firms | 25755 |
| Consulting | 472 |
| Contractors | 328 |
| Credit Unions | 676 |
| Finance | 808 |
| Funds | 1252 |
| General | 10729 |
| Guilds | 271 |
| Insurance | 1031 |
| International Business | 1695 |
| Investments | 1000 |
| Logistics | 372 |
| London Stock Exchange | 3197 |
| Management | 6510 |
| Marketing | 1082 |
| Mortgage | 464 |
| NASDAQ Symbols | 11341 |
| NYSE Symbols | 4227 |
| Occupation & Positions | 4149 |
| Patents & Trademarks | 109 |
| Products | 4661 |
| Professional Organizations | 6052 |
| Real Estate | 764 |
| Restaurants | 229 |
| Stock Exchange | 1949 |
| Tax | 635 |
| Toronto Stock Exchange | 2127 |
| Trade Associations | 255 |