| Company | Timeline | Status | |
| Jba Consulting Limited Director • Unreported | 13 Jan 2020←5 Years→Current | Active | |
| The Kotahi Partnership Limited Director • Unreported | 22 Mar 2016←9 Years→Current | Active | |
| Jba Group Employee Ownership Trustee Limited Director • Unreported | 8 Oct 2014←11 Years→Current | Active | |
| Jba Bentley Limited Director • Unreported | 12 Jun 2013←12 Years→Current | Active | |
| Jba Trust Limited Director • Unreported | 9 Nov 2011←14 Years→Current | Active | |
The Land Drainage Renewable Energy Company Limited Director • Civil Engineer | 22 Jul 2011←6 Years→5 Dec 2017 | Dissolved | |
| Maslen Environmental Limited Director • Unreported | 21 Dec 2007←17 Years→Current | Active | |
| Jba Group Limited Director • Unreported | 11 Oct 2007←18 Years→Current | Active | |
| Grantham Brundell & Farran Limited Director • Unreported | 8 Jul 2004←21 Years→4 Nov 2025 | Dissolved | |
| Jeremy Benn Associates Limited Director • Consulting Engineer | 6 Sep 1996←15 Years→31 Oct 2011 | Active | |
