The red node is Sophie. 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
Sophie Warren Martin
Sophie Warren Martin is a director of Longitude Research Limited and a director of Alpha Grid Media Limited. Source: Companies House records.
Director at Longitude Research Limited · Director at Alpha Grid Media Limited
- 2 current roles
- Served alongside 18 people
Sophie's network: 18 people across 2 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 4th October 2026 · Free, no card or password
Current roles
2 roles across 2 organisations-
Longitude Research LimitedDirector · 2019-present
Official record · Companies House
- Source
- Companies House
- Organisation
- Longitude Research Limited
- Role
- Director
- Appointed
- 2019-04-05
- Record reference
- Company 07514721
Current -
Alpha Grid Media LimitedDirector · 2016-present
Official record · Companies House
- Source
- Companies House
- Organisation
- Alpha Grid Media Limited
- Role
- Director
- Appointed
- 2016-06-10
- Record reference
- Company 07989057
Current
People Sophie has served alongside
18 people across 2 organisationsBased on overlapping official board records. Calculated from official records
18 people across 2 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 Sophie, shown in full after you sign in.
How are you connected?
Create a free account to see the recorded route between you and Sophie, if there is one.
Create a free account to checkSources
- Companies House
- Officer appointments and resignations.
- Edition
- Register edition compiled 4th October 2026
- Identity
- Records are treated as the same person only where the evidence confirms it. How people are matched