| Company | Timeline | Status | |
| Costain Engineering Limited Director • Chief Financial Officer | 7 Feb 2025←10 Months→Current | Active | |
| Costain Energy Solutions Limited Director • Chief Financial Officer | 31 Mar 2024←1 Year 8 Months→Current | Active | |
| Cogap (Middle East) Limited Director • Chief Financial Officer | 31 Mar 2024←1 Year 8 Months→Current | Active | |
| ACM Health Solutions Limited Director • Company Director | 31 Mar 2024←1 Year 8 Months→Current | Active | |
| Promanex (Construction & Maintenance Services) Limited Director • Chief Financial Officer | 31 Mar 2024←1 Year 4 Months→12 Aug 2025 | Dissolved | |
| Promanex (Total FM & Environmental Services) Limited Director • Chief Financial Officer | 31 Mar 2024←1 Year 4 Months→12 Aug 2025 | Dissolved | |
| CLM Engineering (Overseas) Limited Director • Chief Financial Officer | 31 Mar 2024←1 Year 4 Months→12 Aug 2025 | Dissolved | |
| Costain Engineering & Construction (Overseas) Limited Director • Chief Financial Officer | 31 Mar 2024←1 Year 8 Months→Current | Active | |
| Promanex (Civils & Industrial Services) Limited Director • Chief Financial Officer | 31 Mar 2024←1 Year 4 Months→12 Aug 2025 | Dissolved | |
| Costain Alcaidesa Limited Director • Chief Financial Officer | 31 Mar 2024←1 Year 4 Months→5 Aug 2025 | Dissolved | |
