| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| IAN ALLAN (2017) LIMITED | 02354769 | 29/05/1998 | Dissolved |
| IAN ALLAN (HOTELS) LIMITED | 01041799 | 29/07/1991 | Dissolved |
| IAN ALLAN (PRINTING) LIMITED | 00568954 | 29/07/1991 | Dissolved |
| IAN ALLAN LIMITED | 00193661 | 29/07/1991 | Dissolved |
| IAN ALLAN REGALIA LIMITED | 00306930 | 29/07/1991 | Dissolved |
| LOCOMOTIVE PUBLISHING COMPANY LIMITED(THE) | 00061795 | 29/07/1991 | Dissolved |
| LYSAKER TRAVEL MANAGEMENT LIMITED | 01130475 | 01/11/1999 | Dissolved |
| MANAGEMENT BY AIR LIMITED | 01579363 | 31/05/2002 | Dissolved |
| MIDLAND PUBLISHING LIMITED | 02641431 | 20/03/2000 | Dissolved |
| RAILWAY WORLD LIMITED | 00364437 | 29/07/1991 | Dissolved |
| SHEPPERTON METAL PRODUCTS LIMITED | 00504059 | 29/07/1991 | Dissolved |
| SPECIALIST BOOK SALES LIMITED | 00422838 | 29/07/1991 | Dissolved |
| SYNERGI GLOBAL TRAVEL MANAGEMENT LIMITED | 01680835 | 29/07/1991 | Dissolved |
| THE ABBOTS HOTEL COMPANY LIMITED | 00586741 | 19/06/1995 | Dissolved |
| THE GUILD OF BUSINESS TRAVEL AGENTS LIMITED | 05159664 | 13/12/2005 | Dissolved |
| THE ORGANIC GARDENING CATALOGUE LIMITED | 01322068 | 20/03/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BUSINESS TRAVEL ASSOCIATION LIMITED | 02206935 | 07/02/1992 | 01/09/2019 | Gold |
| CHASE ORGANICS (GREAT BRITAIN) LIMITED | 00699325 | 29/07/1991 | 02/06/2020 | Dissolved |
| IAN ALLAN (MINIATURE RAILWAY SUPPLIES) LIMITED | 00943345 | 29/07/1991 | 02/06/2020 | Gold |
| IAN ALLAN GROUP LIMITED | 00739567 | 29/07/1991 | 01/06/2020 | Bronze |
| IAN ALLAN MOTORS LIMITED | 00943545 | 29/07/1991 | 02/06/2020 | Amber |
| IAN ALLAN PUBLISHING LTD | 00400981 | 29/07/1991 | 02/06/2020 | One Red Flag |
| IAN ALLAN TRAVEL LIMITED | 00494505 | 29/07/1991 | 03/05/2019 | Dissolved |
| TENNAY PROPERTIES LIMITED | 00716908 | 29/07/1991 | 31/05/2022 | Silver |