| Company | Timeline | Status | |
| Palmer Environmental Limited Director • Company Director | 13 Mar 1997←5 Months→12 Aug 1997 | Dissolved | |
| Elfab Hughes Limited Director • Company Director | 3 Mar 1995←2 Years 5 Months→12 Aug 1997 | Dissolved | |
| Reten Acoustics Limited Director • Company Director | 14 Aug 1992←4 Years→12 Aug 1997 | Dissolved | |
| A & G Security Electronics Limited Director • Company Director | 14 Aug 1992←4 Years→12 Aug 1997 | Dissolved | |
| Halma PR Services Limited Director • Company Director | 15 Aug 1991←5 Years→12 Aug 1997 | Dissolved | |
| Fire Fighting Enterprises Limited Director • Company Director | 15 Aug 1991←5 Years→12 Aug 1997 | Active | |
| Castell Safety International Limited Director • Company Director | 15 Aug 1991←3 Years→27 Sep 1994 | Active | |
| Hanovia Limited Director • Company Director | 15 Aug 1991←3 Years→20 Jul 1995 | Active | |
| Meadowbridge Holdings Limited Director • Company Director | 15 Aug 1991←5 Years→12 Aug 1997 | Active | |
| Halma International Limited Secretary • Unreported | 15 Aug 1991←5 Years→12 Aug 1997 | Active | |
