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Company

Critical Maritime Systems & Support Limited

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Official record Companies House · updated 4th October 2026 · Sources

Network

The large node is Critical Maritime Systems & Support Limited. Red nodes are organisations, white nodes are people. Sign in free to explore further.

Who leads it

Previous officers 31

  1. Daniel James Barr 2021-2022 Director View profile
  2. Jon Neil Constable 2021-2022 Director View profile
  3. Simon John Nicholson Kings 2016-2016 Director View profile
  4. Simon John Nicholson Kings 2016-2018 Director View profile
  5. Derren Mark Stroud 2016-2023 Director View profile
  6. Philip Cartmell 2016-2016 Director View profile
  7. Claire Louise Macpherson 2015-2022 Director View profile
  8. Jonathan Philip Carter 2013-2014 Director View profile
  9. Mark Stephen Crawford 2012-2016 Director View profile
  10. Dr James Watkins 2005-2006 Director View profile
  11. Paul Goodrow 2005-2006 Director View profile
  12. Bernard Philip Rolfe 2005-2007 Director View profile
  13. Stephen Cassidy 2001-2014 Director View profile
  14. Terence Smith 1997-1999 Director View profile
  15. Raymond George Couzens 1997-2001 Director View profile
  16. Peter Charles Lawrence 1997-2013 Director View profile
  17. Alan John Baxter 1997-2005 Director View profile
  18. Roger Frederic Hancox 1997-1998 Director View profile
  19. Robert Worlidge 1993-1997 Director View profile
  20. Charles Arthur Hillman Baxandall 1992 Director View profile
  21. Michael St John Holt 1997 Director View profile
  22. Brian Roy Osborne 1997 Director View profile
  23. Colin John Leppard 1995 Director View profile
  24. Charles Patrick Smith 1992 Director View profile
  25. Michael John Webb 2013-2015 Secretary View profile
  26. Stephen Giles Harrow 2012-2012 Secretary View profile
  27. George Shannon 2003-2012 Secretary View profile
  28. Jonathan Lees Chitty 2002-2003 Secretary View profile
  29. Simon Charles Duckworth 1997-1999 Secretary View profile
  30. Jonathan Francis Smith 1997-2002 Secretary View profile
  31. Colin John Pim 1997 Secretary View profile

Directors and secretaries as filed at Companies House.

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About

Incorporated
06/05/1969

Ownership

Owned by (1) iOwned byIndividuals and companies registered as having significant control over this company, from the Companies House PSC (persons with significant control) register. People whose ownership could not be confirmed to one individual are not listed as confirmed owners.

  • Science Group PLC
    75-100% shares, 75-100% voting, appoints directors · notified 2025-09-11

Group

  1. Critical Maritime Systems & Support Limited is controlled by Science Group PLC
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2025-09-11 · source: Companies House PSC register
  2. Science Group PLC is controlled by Martyn Roy Ratcliffe
    Evidence
    ceased 25-50% shares, 25-50% voting · notified 2017-06-26, ceased 2021-09-07 · source: Companies House PSC register

Ultimately controlled by Martyn Roy Ratcliffe.

15 other companies in this group

Ownership paths are calculated from Companies House persons-with-significant-control filings. Each step shows the filed nature of control and dates; a step marked "ceased" is historical, not current.

Grants received

1 grant · £10,664 total

360Giving data, published by funders. Coverage only includes funders who publish their grants to 360Giving, so these figures are a floor, not a complete picture.

Top funders

  • Department for Business, Energy and Industrial Strategy · £10,664

Most recent

  • Department for Business, Energy and Industrial Strategy £10,6642021-09-01
Board analysis

Board DNA

How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.iBoard compositionCounted from the dated Companies House officer record: the current directors only, past directors excluded.

3 directors on the board

3.5y median 3.5y
average tenure
3.5y
longest tenure
0
directors past 6 years

First-time vs portfolio directors

Portfolio (3)

0
left in the last 12 months

Where else this board sits iWhere else this board sitsThe charitable fields these directors govern in elsewhere, by Charity Commission classification. Excludes this company and any charity it is the legal face of.

Professional services 13Manufacturing 3Finance 2Education 1Tech and media 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.

Sources

Official record from Companies House. Governance Register calculates the connections.

Record details
Company number
00953609
Status
Active
Type
Private Limited Company
Edition
Register edition compiled 4th October 2026
Labels
Official record from Companies House · Calculated derived by Governance Register.

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