| Company | Timeline | Status | |
| Pressure System Integrity Limited Director • Engineer | 19 Aug 2025←2 Months→Current | Active | |
| Michael Houghton Inspections Ltd Secretary • Unreported | 15 Jun 2009←16 Years→Current | Active | |
| Michael Houghton Inspections Ltd Director • Inspection Engineer | 15 Jun 2009←16 Years→Current | Active | |
