| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Persona con control significativo | BEN JOHNSTON MECHANICAL LIMITED | 🇬🇧United Kingdom | Disuelta | 18/6/2024 – presente |
| Persona con control significativo | BRIAN JOHNSTON LTD | 🇬🇧United Kingdom | Activa | 18/6/2024 – presente |
| Persona con control significativo | TRANSFORM SERVICES (N.I.) LIMITED | 🇬🇧United Kingdom | Activa | 19/6/2024 – presente |
| Persona con control significativo | RHIEDORRACH ESTATES LLP | 🇬🇧United Kingdom | Activa | 18/6/2024 – presente |
| Persona con control significativo | SINCLAIR BAY ELECTRICAL LTD | 🇬🇧United Kingdom | Solicitud de baja | 18/6/2024 – presente |
| Persona con control significativo | BROCKVILLE SERVICES LTD | 🇬🇧United Kingdom | Solicitud de baja | 19/6/2024 – presente |
| Persona con control significativo | CALLATER LODGE LLP | 🇬🇧United Kingdom | Activa | 19/6/2024 – presente |
| Persona con control significativo | B JOHNSTON PROJECTS LIMITED | 🇬🇧United Kingdom | Activa | 19/6/2024 – presente |
| Cargo | SMITH ROAD LIMITED | 🇬🇧United Kingdom | Activa | 13/4/2026 – 1/9/2023 |
| Persona con control significativo | SMITH ROAD LIMITED | 🇬🇧United Kingdom | Activa | 8/3/2024 – 2/1/2019 |
| Persona con control significativo | 46 BULWER ROAD (FREEHOLD) LIMITED | 🇬🇧United Kingdom | Activa | 18/6/2024 – presente |
| Persona con control significativo | JINXIES LIMITED | 🇬🇧United Kingdom | Solicitud de baja | 19/6/2024 – presente |
| Persona con control significativo | BEEJ CONSULTING LTD | — | Disuelta | 18/6/2024 – presente |
| Persona con control significativo | JOHNSTON AGRI SUPPLIES LIMITED | 🇬🇧United Kingdom | Activa | 18/6/2024 – presente |
| Persona con control significativo | ANNAGARVEY HOLDINGS LIMITED | 🇬🇧United Kingdom | Activa | 19/6/2024 – presente |
| Persona con control significativo | BLACKSHAMROCK CONSTRUCTION LIMITED | — | Disuelta | 19/6/2024 – presente |
| Persona con control significativo | BRIAN JOHNSTON & CO (INSURANCE BROKERS) LIMITED | 🇬🇧United Kingdom | Activa | 18/6/2024 – presente |
| Persona con control significativo | SOUTH LONDON SERVICES LIMITED | 🇬🇧United Kingdom | Disuelta | 18/6/2024 – presente |
| Persona con control significativo | JOHNSTON POULTRY SALES LIMITED | 🇬🇧United Kingdom | Activa | 18/6/2024 – presente |
| Persona con control significativo | LIL (HOLDINGS) LIMITED | 🇬🇧United Kingdom | Activa | 19/6/2024 – presente |
| Persona con control significativo | FIRSTJOHNSTON CONSULTING LTD | 🇬🇧United Kingdom | Activa | 18/6/2024 – presente |
| Persona con control significativo | DAIRI FRESH ICE CREAM LIMITED | 🇬🇧United Kingdom | Activa | 18/6/2024 – 11/6/2021 |
| Persona con control significativo | ULSTER MAID (DAIRY ICES) LIMITED | 🇬🇧United Kingdom | Activa | 18/6/2024 – 11/6/2021 |
| Persona con control significativo | LINKFIELD INSURANCE LOGISTICS LIMITED | 🇬🇧United Kingdom | Liquidación | 18/6/2024 – presente |
| Persona con control significativo | LINKFIELD LOSS RECOVERY SERVICES LIMITED | 🇬🇧United Kingdom | Liquidación | 19/6/2024 – presente |
| Persona con control significativo | JOHNSTON MEDICAL SERVICES LIMITED | 🇬🇧United Kingdom | Disuelta | 15/1/2024 – presente |
| Persona con control significativo | LINKFIELD ACCIDENT MANAGEMENT LIMITED | 🇬🇧United Kingdom | Activa | 18/6/2024 – presente |
| Persona con control significativo | BRIAN JOHNSTON & CO. (INSURANCE SERVICES) LIMITED | 🇬🇧United Kingdom | Activa | 19/6/2024 – presente |
| Persona con control significativo | REDHILL MASTERS LIMITED | — | Disuelta | 19/6/2024 – presente |
| Persona con control significativo | — | — | Activa | 19/6/2024 – presente |
| Persona con control significativo | — | — | Activa | 18/6/2024 – presente |
| Cargo | JOHNSTON MEDICAL SERVICES LIMITED | 🇬🇧United Kingdom | Disuelta | 10/3/2026 – presente |
| Cargo | JOHNSTON POULTRY SALES LIMITED | 🇬🇧United Kingdom | Activa | 18/5/2026 – 1/5/2026 |
10/6/2026
United Kingdom → Northern Ireland
1/5/2026
resigned
6/4/2016
appointed