| Company | Timeline | Status | |
| Kent Consulting Engineers LLP Designated LLP Member • Unreported | 19 Sep 2013←12 Years→Current | Active | |
| London Consulting Engineers LLP Designated LLP Member • Unreported | 18 Sep 2013←7 Years→7 Sep 2021 | Dissolved | |
| Chamberlain Consulting LLP Designated LLP Member • Unreported | 8 Apr 2002←15 Years→1 Apr 2018 | Active | |
