| Abbreviation | Definition |
|---|---|
| INB | Interbulk Grp |
| INC | Insetco, P.L.C. Ordinary shares |
| INCH | Inchcape |
| IND | Indigovision |
| INDI | Indus Gas |
| INF | Informa |
| INFA | Infrastrata |
| INFO | Infoscreen |
| INFS | Infoserve |
| INL | Inland |
| INM | Independent News and Media, P.L.C. Ordinary shares |
| INNO | Innovise |
| INPP | International Public Partnerships, LTD. |
| INRE | Invista Real Estate Investment Managment Holdings, P.L.C. |
| INS | Instem Life, P.L.C. |
| INTE | Integra (Reg S) |
| INTQ | Internetq |
| INV | Investment Co. |
| INVP | Investec |
| INVR | Investec Pref |