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Mark Peter Southern
Mark Peter Southern was previously a director of Derwent London Baker Street Limited (until 2021) and 17 other organisations. Source: Companies House records.
Director at 21 Seymour Street Limited · Director at Seymour Street Nominees Limited
- 0 current roles
- 18 previous roles
- Served alongside 76 people
Mark's network: 76 people across 18 organisations
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Official record Companies House · updated 11th October 2026 · Free, no card or password
Roles
18 roles across 18 organisations-
21 Seymour Street LimitedDirector · 2018-2021
Official record · Companies House
- Source
- Companies House
- Organisation
- 21 Seymour Street Limited
- Role
- Director
- Appointed
- 2018-05-25
- Ended
- 2021-06-30
- Record reference
- Company 02953826
Previous -
Seymour Street Nominees LimitedDirector · 2016-2021
Official record · Companies House
- Source
- Companies House
- Organisation
- Seymour Street Nominees Limited
- Role
- Director
- Appointed
- 2016-02-20
- Ended
- 2021-06-30
- Record reference
- Company 01711120
Previous -
The Portman Estate Nominees (ONE) LimitedDirector · 2016-2021
Official record · Companies House
- Source
- Companies House
- Organisation
- The Portman Estate Nominees (ONE) Limited
- Role
- Director
- Appointed
- 2016-02-20
- Ended
- 2021-06-30
- Record reference
- Company 05175327
Previous
15 more roles, with dates and sources
Sign in free to see all rolesPeople Mark has served alongside
76 people across 18 organisationsBased on overlapping official board records. Calculated from official records
76 people across 18 organisations
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- 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