| Company | Timeline | Status | |
| Springer Nature (UK) Limited Director • Publisher | 25 Sep 1995←2 Years→1 Oct 1997 | Active | |
| Springer Nature (UK) Limited Director • Publisher | 7 May 1991←1 Year 1 Month→23 Jun 1992 | Active | |
| Springer Nature Holdings Limited Director • Publisher | 7 May 1991←4 Years→25 Sep 1995 | Active | |
