The red node is Mark. Pale nodes are charities, grey nodes are companies, and darker grey nodes are the people who sit on them. Sign in free to explore further.
Person Preview
Mark Jonathan Chambers
Mark Jonathan Chambers is a director of Gregynog Enterprises Limited and a director of Onecall Business Turnaround LTD, among 3 current roles on record. Source: Companies House records.
Director at Gregynog Enterprises Limited · Director at Onecall Business Turnaround LTD
- 3 current roles
- 3 previous roles
- Served alongside 12 people
Mark's network: 12 people across 4 organisations
Anyone can join - you don't need to be on the register. Used by researchers, journalists, recruiters and due diligence teams.
Private by default - we never tell anyone you looked them up. Viewing, searching, saving and shortlisting are private; people only hear from you if you choose to send them a message.
Official record Companies House · updated 11th October 2026 · Free, no card or password
Current roles
6 roles across 6 organisations-
Gregynog Enterprises LimitedDirector · 2023-present
Official record · Companies House
- Source
- Companies House
- Organisation
- Gregynog Enterprises Limited
- Role
- Director
- Appointed
- 2023-11-17
- Record reference
- Company 08998400
Current -
Onecall Business Turnaround LTDDirector · 2021-present
Official record · Companies House
- Source
- Companies House
- Organisation
- Onecall Business Turnaround LTD
- Role
- Director
- Appointed
- 2021-03-01
- Record reference
- Company 13236374
Current -
Onecall Management LimitedDirector · 2012-present
Official record · Companies House
- Source
- Companies House
- Organisation
- Onecall Management Limited
- Role
- Director
- Appointed
- 2012-08-14
- Record reference
- Company 08179682
Current
3 more roles, including 3 previous roles, with dates and sources
Sign in free to see all rolesPeople Mark has served alongside
12 people across 4 organisationsBased on overlapping official board records. Calculated from official records
12 people across 4 organisations
Create a free account to reveal this governance network and see how you're connected.
Create a free account to revealConnections
Connection map
The organisations and people around Mark, shown in full after you sign in.
How are you connected?
Create a free account to see the recorded route between you and Mark, if there is one.
Create a free account to checkSources
- Companies House
- Officer appointments and resignations.
- Edition
- Register edition compiled 11th October 2026
- Identity
- Records are treated as the same person only where the evidence confirms it. How people are matched