Company
The Gemmological Association of Great Britain
Official record Companies House · updated 4th October 2026 · Sources
Network
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Who leads it
- Alistair Neil MccallumDirector · since 2024
- Pia Pompea TonnaDirector · since 2022
- Marguerite Ann Campbell PedersenDirector · since 2022
- Katie Mckenzie FlitcroftDirector · since 2022
- Nevin Ibrahim Khalil Bayoumi - StefanovicDirector · since 2019
- Joanna HardyDirector · since 2017
- Philip SadlerDirector · since 2017
- Catherine Elizabeth HillSecretary · since 2025
Previous officers 52
- Richard Barry Drucker 2022-2022 View profile
- Louise Claire Goldring 2019-2022 View profile
- Lesley Margaret Exley 2017-2017 View profile
- Christopher Patrick Smith 2015-2023 View profile
- Justine Lynda Carmody 2015-2024 View profile
- John Alan William Hodgkinson 2015-2017 View profile
- Kerry Honor Gregory 2015-2018 View profile
- Kathryn Leigh Bonanno Patrizzi 2015-2022 View profile
- Jessica May Cadzow 2014-2015 View profile
- Jonathan Lambert 2014-2015 View profile
- Stephen Peter Lewis Whittaker 2013-2015 View profile
- Paul Frank Greer 2013-2018 View profile
- Nigel Brian Israel 2013-2018 View profile
- Professor Andrew Hugh Rankin 2012-2014 View profile
- Mary Ann Burland 2012-2016 View profile
- Jason Francis Williams 2012-2015 View profile
- Steven Leonard Jordan 2010-2012 View profile
- Landy Palmer 2010-2012 View profile
- Richard Mark Slater 2009-2017 View profile
- Steven Collins 2009-2015 View profile
- Brian Jackson 2009-2013 View profile
- Cally Jane Elizabeth Oldershaw 2009-2013 View profile
- Dr John Mullen Ogden 2009-2018 View profile
- James Henry Riley 2007-2012 View profile
- Paul Alexander Barthaud 2005-2006 View profile
- Marcus Alexander Mccallum 2005-2006 View profile
- Professor Alan Trevor Collins 2004-2011 View profile
- Sheila Burgoyne 2004-2007 View profile
- Sally Ann Everitt 2004-2007 View profile
- Peter John Wates 2004-2007 View profile
- Edward Allan Jobbins 2004-2006 View profile
- Lawrence Hudson 2003-2005 View profile
- Ian Frederick Mercer 1999-2004 View profile
- Evelyne Stern 1999-2010 View profile
- Jeffrey Monnickendam 1999-2005 View profile
- Michael John O'Donoghue 1998-2008 View profile
- Eric Charles Emms 1993-1995 View profile
- Christopher Ronald Cavey 1991-1999 View profile
- Noel Deeks 2001 View profile
- Kenneth Vincent Granville Scarratt 1992 View profile
- Terence Malcolm John Davidson 2008 View profile
- Ian Thomson 2004 View profile
- Vivian Peter Watson 2005 View profile
- David John Callaghan 1993 View profile
- Alan David Hart 2015-2024 View profile
- James Henry Riley 2012-2015 View profile
- Miranda Elizabeth Jane Wells 2012-2016 View profile
- Paul Christopher Neale 2008-2009 View profile
- Throgmorton UK Limited 2005-2007 View profile
- Dr Roger Harding 2001-2005 View profile
- Jean-Paul Van Doren 2000-2001 View profile
- Adrian Henry Klein 1994 View profile
Directors and secretaries as filed at Companies House.
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About
- Incorporated
- 10/09/1985
- Also a registered charity
- The Gemmological Association of Great Britain
Ownership
Owned by (10) 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.
- Justine Lynda Carmody ceased 2017-08-31
significant influence · notified 2016-04-06 - Kathryn Leigh Bonanno Patrizzi ceased 2017-08-31
significant influence · notified 2016-04-06 - Christopher Patrick Smith ceased 2017-08-31
significant influence · notified 2016-04-06 - confirmed: also a director of this company - Kerry Honor Gregory ceased 2017-08-31
significant influence · notified 2016-04-06 - Mary Ann Burland ceased 2017-08-31
significant influence · notified 2016-04-06 - John Alan William Hodgkinson ceased 2017-08-31
significant influence · notified 2016-04-06 - Richard Mark Slater ceased 2017-08-31
significant influence · notified 2016-04-06 - confirmed: also a director of this company - Miranda Elizabeth Jane Wells ceased 2017-08-31
significant influence · notified 2016-04-06 - Paul Frank Greer ceased 2017-08-31
significant influence · notified 2016-04-06 - Nigel Brian Israel ceased 2017-08-31
significant influence · notified 2016-04-06
Group
- The Gemmological Association of Great Britain
is controlled by Justine Lynda Carmody
Evidence
ceased significant influence · notified 2016-04-06, ceased 2017-08-31 · source: Companies House PSC register
Ultimately controlled by Justine Lynda Carmody.
3 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.
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.
7 directors on the board
- Joanna Hardy Director · appointed 2017
- Alistair Neil Mccallum Director · appointed 2024
- Pia Pompea Tonna Director · appointed 2022
- Marguerite Ann Campbell Pedersen Director · appointed 2022
- Katie Mckenzie Flitcroft Director · appointed 2022
- Philip Sadler Director · appointed 2017
- Nevin Ibrahim Khalil Bayoumi - Stefanovic Director · appointed 2019
Directors past 6 years
- Joanna Hardy Director · appointed 2017
- Philip Sadler Director · appointed 2017
- Nevin Ibrahim Khalil Bayoumi - Stefanovic Director · appointed 2019
First-time vs portfolio directors
First-time (5)
- Alistair Neil Mccallum Director · appointed 2024
- Pia Pompea Tonna Director · appointed 2022
- Marguerite Ann Campbell Pedersen Director · appointed 2022
- Katie Mckenzie Flitcroft Director · appointed 2022
- Nevin Ibrahim Khalil Bayoumi - Stefanovic Director · appointed 2019
Portfolio (2)
- Joanna Hardy Director · appointed 2017
- Philip Sadler Director · appointed 2017
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.
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
- 01945780
- Status
- Active
- Type
- PRI/LTD BY GUAR/NSC (Private, limited by guarantee, no share capital)
- Edition
- Register edition compiled 4th October 2026
- Labels
- Official record from Companies House · Calculated derived by Governance Register.
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