Sector & Industry Classifications
| Database | Approximate Number of Companies or Issues | Length of History | Update Cycle |
| ASX - GICS | |||
| Compustat GICS | |||
| Dow Jones Global Map Classification | 36,000 | Since May, 2002 | Weekly |
| Dow Jones STOXX Classification | |||
| FactSet Industries and Economic Sectors | 51,000 | Current | Daily |
| Fordd | |||
| FTSE Global Classification | 30,000 | Current | Daily |
| HSBC Global Classification | |||
| MSCI/S&P GICS Direct | 27,000 | Current Day/Month-End | Daily |
| NAICS (No Amer Ind Class Sys) (fr Compustat) | 11,600 | Current | Weekly |
| Reuters | |||
| SIC (Standard Ind Class) (Multi-sourced) | 45,000 | Current | Daily |
| Toyo Keizai | |||
| Worldscope | |||
