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Advanced Crystal Technology Limited

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Official record Companies House · updated 20th September 2026 · Sources

Network

The large node is Advanced Crystal Technology Limited. Red nodes are organisations, white nodes are people. Sign in free to explore further.

Who leads it

Previous officers 16

  1. Joanna Alwen Harkus Madge 2017-2019 Director View profile
  2. Malcolm Howard Cooper 2009-2010 Director View profile
  3. Stephen Charles Sydes 1997-2009 Director View profile
  4. James Douglas Loveridge 1996-2000 Director View profile
  5. John Macdonald Bryson 1996-1999 Director View profile
  6. Derek Frederick Crook 1996-2000 Director View profile
  7. Wayne Ronald Axten 1995-2007 Director View profile
  8. Andrew Kingsley Jones 1993-1996 Director View profile
  9. Dean Gale 1993 Director View profile
  10. Nicholas Rowe 2019-2019 Secretary View profile
  11. Ian Russell Greatorex 2006-2009 Secretary View profile
  12. Robert Michael Prior 2004-2006 Secretary View profile
  13. Neil Davies 2001-2004 Secretary View profile
  14. David Ernest Harris 2000-2001 Secretary View profile
  15. Christine Patricia Read 1994-2000 Secretary View profile
  16. Ewan Michie 1997 Secretary View profile

Directors and secretaries as filed at Companies House.

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About

Incorporated
11/04/1985

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.

Group

  1. Advanced Crystal Technology Limited is controlled by Actech Holdings Limited
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06 · source: Companies House PSC register

Ultimately controlled by Actech Holdings Limited.

1 other company 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.

Board analysis for researchers

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.

2 directors on the board

11.2y median 11.2y
average tenure
15.9y
longest tenure

Directors past 6 years

First-time vs portfolio directors

Portfolio (2)

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 36Manufacturing 11Finance 4Retail and trade 3Tech and media 2

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.

Sources

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

Record details
Company number
01904334
Status
Active
Type
Private Limited Company
Edition
Register edition compiled 20th September 2026
Labels
Official record from Companies House · Calculated derived by Governance Register.

Contains public sector information licensed under the Open Government Licence v3.0. Report an issue · How we handle data