| Company | Timeline | Status | |
| Claessens International London Limited Director • Interior Designer | 4 Mar 2009←16 Years→Current | Active | |
3 Mandeville Place Limited Secretary • Interior Designer | 18 Oct 2000←16 Years→3 Nov 2016 | Dissolved | |
| Claessens International Limited Secretary • Interior Designer | 18 Oct 2000←17 Years→11 Apr 2018 | Active | |
| Claessens International Limited Director • Interior Designer | 31 Dec 1992←32 Years→Current | Active | |
| Claessens Design Limited Director • Interior Designer | 13 Nov 1992←33 Years→Current | Active | |
| Claessens Production And Artwork Services Limited Director • Interior Designer | 13 Nov 1992←33 Years→Current | Active | |
