The Governance RegisterEdition 2026 · Compiled 12th July 2026

Thamesis Trustees Limited

Company 04586105 Active

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Board DNA

How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.

7
directors on the board
12.1y median 16y
average tenure
16.2y
longest tenure
5
directors past 6 years
2 vs 5 portfolio
first-time directors
4
also govern a charity
0
left in the last 12 months

Where else this board sits

Professional services 5Property 5Business services 4Manufacturing 3Education 2Arts and leisure 1Finance 1Other services 1

The sectors these directors govern in elsewhere. This company, and any charity it is the legal face of, are excluded - counting them would just tell you what you are already looking at.

Gaps to watch

  • Several long-serving directors could step down together

Where to look Suggested search: succession planning for long-tenured seats.

Related organisations

Companies whose board overlaps with this one through the same people. Deterministic, from public records.

Company details

Number04586105
StatusActive
TypePrivate Limited Company
Incorporated11/11/2002
Address61 GROSVENOR STREET, LONDON, W1K 3JE
Accounts next due30/09/2026
Accounts last made up31/12/2024

Industry (SIC)

74909 - Other professional, scientific and technical activities n.e.c.

Ownership - persons with significant control (4)

  • Mr James Ashley Arbib British
    significant influence or control
  • Mrs Melanie White British
    significant influence or control
  • Mr Benjamin Guy Arbib British
    significant influence or control
  • Mrs Annabel Suva Nicoll British
    significant influence or control

Officers (17)

  • Mumford, Nicholas Gary Secretary · appointed 2024
  • WAY, David John Director · appointed 2021
  • Arbib, Martyn, Sir Director · appointed 2021
  • Adams, Louise Ann Director · appointed 2017
  • Arbib, Benjamin Guy Director · appointed 2010
  • Arbib, James Ashley Director · appointed 2010
  • Nicoll, Annabel Suva Director · appointed 2010
  • Reynolds, Paul Adam Director · appointed 2010
  • Whittaker, James Matthew Former Secretary · appointed 2019 · resigned 2024
  • Doraisamy, Paula Mary Former Secretary · appointed 2012 · resigned 2018
  • Fowler, Fiona Claire Former Secretary · appointed 2011 · resigned 2012
  • White, Melanie Former Director · appointed 2010 · resigned 2023
  • Sanderson, Linda Ruth Former Director · appointed 2007 · resigned 2011
  • Camoys, Thomas Racoht Campion George Sherman, Lord Former Director · appointed 2002 · resigned 2011
  • Boodle Hatfield Secretarial Limited Former Corporate-secretary · appointed 2002 · resigned 2012
  • Harrison, Clive Fiske Former Director · appointed 2002 · resigned 2009
  • Mcgarvey, Peter Former Director · appointed 2002 · resigned 2010

Directors and officers on the Companies House record, current and former.

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