Back to search

The National Museum Of Computing

05407952

active
private limited guarant nsc limited exemption
england wales
Companies House
Health Score
65 / 100

Some Concerns

25/30
Filing
0/30
Financial
40/40
Risk

No risk factors detected.

Details

Tnmoc, Block H Bletchley Park, Sherwood Drive, Milton Keynes, MK3 6EB
Incorporated 30/03/2005

Previously known as

Codesandciphers Heritage Trust · until 22/11/2019

Compliance

Last accounts

31/03/2025

total exemption full

Next accounts due

31/12/2026

On track

Confirmation statement

Last: 30/03/2026

Due 13/04/2027

On track

Industry

85590
Other education
91020
Museum activities
91030
Operation of historical sites and buildings and similar visitor attractions

Officers

Mr Andrew John Clark

director · Since 01/04/2005

CHARTERED ENGINEER

BRITISH · UNITED KINGDOM ( ENGLAND ) (GB-ENG) · Age 71

Also on 1 other board

Dr Andrew James Herbert

director · Since 01/02/2016

NONE

BRITISH · UNITED KINGDOM · Age 72

Also on 3 other boards

Ms Sarah-Jill Lennard

director · Since 12/01/2023

NED, ADVISER, OCCASIONAL CONSULTANT AND

BRITISH · ENGLAND · Age 70

Also on 1 other board

Mr Benjamin Jon Trethowan

director · Since 11/01/2024

CHIEF INFORMATION SECURITY OFFICER

BRITISH · ENGLAND · Age 40

Also on 2 other boards

Sir John Dermot Turing

director · Since 12/09/2024

WRITER

BRITISH · SCOTLAND · Age 65

Also on 1 other board

Mr Daniel Jeremy Peter Garratt

director · Since 14/11/2024

RETIRED

BRITISH · ENGLAND · Age 61

Mr Alexander Rupert Van Someren

director · Since 10/07/2025

MANAGEMENT CONSULTANT

BRITISH · ENGLAND · Age 61

Also on 2 other boards

Mr Marios Kyriacou

director · Since 12/03/2026

BRITISH · ENGLAND · Age 47

Also on 1 other board

Mr Timothy William Baker

director · Since 12/03/2026

BRITISH · ENGLAND · Age 53

Dr Shana Vijayan

director · Since 12/03/2026

BRITISH · ENGLAND · Age 49

Andrew John Clark

director · Since 01/04/2005

British · United Kingdom ( England ) (Gb-Eng) · Age 71

Andrew James Herbert

director · Since 01/02/2016

British · United Kingdom · Age 72

Sarah-Jill Lennard

director · Since 12/01/2023

British · England · Age 70

Benjamin Jon Trethowan

director · Since 11/01/2024

British · England · Age 40

John Dermot Turing

director · Since 12/09/2024

British · Scotland · Age 65

Daniel Jeremy Peter Garratt

director · Since 14/11/2024

British · England · Age 61

Alexander Rupert Van Someren

director · Since 10/07/2025

British · England · Age 61

Marios Kyriacou

director · Since 12/03/2026

British · England · Age 47

Timothy William Baker

director · Since 12/03/2026

British · England · Age 53

Shana Vijayan

director · Since 12/03/2026

British · England · Age 49

Former

Whale Rock Directors Limited

corporate nominee director · Resigned 01/04/2005

Lawgram Secretaries Limited

corporate nominee secretary · Resigned 01/10/2009

Anthony Edgar Sale

director · Resigned 01/09/2011

Anthony Edgar Sale

secretary · Resigned 01/09/2011

Matthew Crotty

director · Resigned 24/03/2017

Robert Alan Willett

director · Resigned 24/05/2018

Margaret Dorothy Sale

director · Resigned 09/11/2018

Jonathan Metcalf Fell

director · Resigned 15/05/2019

Timothy John Reynolds

director · Resigned 14/05/2020

Martin Campbell-Kelly

director · Resigned 09/08/2022

James Andrew Burton Mayo

director · Resigned 31/03/2023

Rachel Hilary Ann Burnett

director · Resigned 31/03/2025

Steven Kay

director · Resigned 31/03/2025

Rebecca Halls

director · Resigned 11/09/2025

Kevin Robert Murrell

director · Resigned 09/07/2026

Mr Kevin Robert Murrell

director · Resigned 09/07/2026

PSC Statements

no individual or entity with signficant control· 30/03/2017

Change History

officer appointedBAKER, Timothy William
2026-09-14
officer appointedCLARK, Andrew John
2026-09-14
officer appointedGARRATT, Daniel Jeremy Peter
2026-09-14
officer appointedHERBERT, Andrew James, Dr
2026-09-14
officer appointedKYRIACOU, Marios
2026-09-14
officer appointedLENNARD, Sarah-Jill
2026-09-14
officer appointedTRETHOWAN, Benjamin Jon
2026-09-14
officer appointedTURING, John Dermot, Sir
2026-09-14
officer appointedVAN SOMEREN, Alexander Rupert
2026-09-14
officer appointedVIJAYAN, Shana, Dr
2026-09-14
statusactive
2026-09-14

Active

typeprivate-limited-guarant-nsc-limited-exemption
2026-09-14

PRI/LBG/NSC (Private, Limited by guarantee, no share capital, use of 'Limited' exemption)

address line1Tnmoc, Block H Bletchley Park
2026-09-14

TNMOC, BLOCK H BLETCHLEY PARK

post townMilton Keynes
2026-09-14

MILTON KEYNES

Filing History100 filings

Director resigned

termination director company with name termination date

15/07/20261 page · PDF
Confirmation statement

confirmation statement with no updates

01/04/20263 pages · PDF
Director appointed

appoint person director company with name date

22/03/20262 pages · PDF
Director appointed

appoint person director company with name date

22/03/20262 pages · PDF
Director appointed

appoint person director company with name date

22/03/20262 pages · PDF
Accounts filed

accounts with accounts type total exemption full

17/11/202521 pages · PDF
Director resigned

termination director company with name termination date

13/09/20251 page · PDF
Director appointed

appoint person director company with name date

14/07/20252 pages · PDF
Director details changed

change person director company with change date

25/04/20252 pages · PDF
Confirmation statement

confirmation statement with no updates

10/04/20253 pages · PDF
Director resigned

termination director company with name termination date

02/04/20251 page · PDF
Director resigned

termination director company with name termination date

02/04/20251 page · PDF
Accounts filed

accounts with accounts type total exemption full

31/12/202420 pages · PDF
Director appointed

appoint person director company with name date

28/11/20242 pages · PDF
Director appointed

appoint person director company with name date

03/10/20242 pages · PDF
Confirmation statement

confirmation statement with no updates

16/04/20243 pages · PDF
Director appointed

appoint person director company with name date

24/01/20242 pages · PDF
Director details changed

change person director company with change date

14/12/20232 pages · PDF
Accounts filed

accounts with accounts type total exemption full

09/12/202319 pages · PDF
Director appointed

appoint person director company with name date

13/09/20232 pages · PDF
Confirmation statement

confirmation statement with no updates

14/04/20233 pages · PDF
Director resigned

termination director company with name termination date

03/04/20231 page · PDF
Director appointed

appoint person director company with name date

25/01/20232 pages · PDF
Accounts filed

accounts with accounts type total exemption full

18/11/202220 pages · PDF
Director resigned

termination director company with name termination date

11/08/20221 page · PDF
Confirmation statement

confirmation statement with no updates

30/03/20223 pages · PDF
Accounts filed

accounts with accounts type total exemption full

24/01/202220 pages · PDF
Confirmation statement

confirmation statement with no updates

04/06/20213 pages · PDF
Accounts filed

accounts with accounts type total exemption full

18/02/202123 pages · PDF
Confirmation statement

confirmation statement with no updates

17/06/20203 pages · PDF
Director details changed

change person director company with change date

27/05/20202 pages · PDF
Director resigned

termination director company with name termination date

20/05/20201 page · PDF
RESOLUTIONS

resolution

21/04/202017 pages · PDF
Director appointed

appoint person director company with name date

04/02/20202 pages · PDF
Accounts filed

accounts with accounts type total exemption full

15/01/202023 pages · PDF
MA

memorandum articles

26/11/201916 pages · PDF
RESOLUTIONS

resolution

22/11/20192 pages · PDF
RESOLUTIONS

resolution

28/10/20191 page · PDF
CONNOT

change of name notice

28/10/20192 pages · PDF
MISC

miscellaneous

28/10/20192 pages · PDF
Director resigned

termination director company with name termination date

05/07/20191 page · PDF
Director resigned

termination director company with name termination date

28/06/20191 page · PDF
Director appointed

appoint person director company with name date

28/06/20192 pages · PDF
Director resigned

termination director company with name termination date

28/06/20191 page · PDF
Address changed

change registered office address company with date old address new address

28/06/20191 page · PDF
Confirmation statement

confirmation statement with no updates

16/04/20193 pages · PDF
Address changed

change registered office address company with date old address new address

20/02/20191 page · PDF
Accounts filed

accounts with accounts type total exemption full

13/02/201921 pages · PDF
Confirmation statement

confirmation statement with no updates

10/04/20183 pages · PDF
Director appointed

appoint person director company with name date

09/04/20182 pages · PDF
Accounts filed

accounts with accounts type total exemption full

24/01/201821 pages · PDF
Confirmation statement

confirmation statement with updates

06/04/20174 pages · PDF
Director resigned

termination director company with name termination date

05/04/20171 page · PDF
Accounts filed

accounts with accounts type total exemption full

13/01/201721 pages · PDF
RESOLUTIONS

resolution

05/08/201614 pages · PDF
Annual return

annual return company with made up date no member list

11/04/201610 pages · PDF
Director appointed

appoint person director company with name date

22/02/20163 pages · PDF
Director appointed

appoint person director company with name date

17/02/20163 pages · PDF
Accounts filed

accounts with accounts type full

15/01/201620 pages · PDF
Annual return

annual return company with made up date no member list

12/04/20158 pages · PDF
Accounts filed

accounts with accounts type group

20/01/201521 pages · PDF
Director appointed

appoint person director company with name

26/04/20142 pages · PDF
Annual return

annual return company with made up date no member list

26/04/20147 pages · PDF
Accounts filed

accounts with accounts type total exemption full

07/01/201417 pages · PDF
Annual return

annual return company with made up date no member list

11/04/20137 pages · PDF
Director details changed

change person director company with change date

11/04/20132 pages · PDF
Accounts filed

accounts with accounts type total exemption full

31/01/201318 pages · PDF
Annual return

annual return company with made up date no member list

16/04/20127 pages · PDF
Address changed

change registered office address company with date old address

15/04/20121 page · PDF
Accounts filed

accounts with accounts type total exemption full

05/01/201218 pages · PDF
Director appointed

appoint person director company with name

24/10/20113 pages · PDF
TM02

termination secretary company with name

30/09/20112 pages · PDF
Director resigned

termination director company with name

30/09/20112 pages · PDF
Address changed

change registered office address company with date old address

29/09/20112 pages · PDF
Annual return

annual return company with made up date no member list

20/04/20118 pages · PDF
Director appointed

appoint person director company with name

15/04/20113 pages · PDF
Accounts filed

accounts with accounts type total exemption full

31/12/201018 pages · PDF
Annual return

annual return company with made up date no member list

14/04/20105 pages · PDF
Director details changed

change person director company with change date

14/04/20102 pages · PDF
Director details changed

change person director company with change date

14/04/20102 pages · PDF
TM02

termination secretary company with name

14/04/20101 page · PDF
AAMD

accounts amended with made up date

26/03/201013 pages · PDF
Accounts filed

accounts with accounts type dormant

28/01/201013 pages · PDF
AP03

appoint person secretary company with name

16/10/20091 page · PDF
288a

legacy

30/04/20091 page · PDF
363a

legacy

28/04/20097 pages · PDF
Accounts filed

accounts with accounts type full

04/02/200912 pages · PDF
363a

legacy

23/04/20083 pages · PDF
Accounts filed

accounts with accounts type full

13/09/200710 pages · PDF
288a

legacy

21/08/20072 pages · PDF
287

legacy

13/06/20071 page · PDF
363s

legacy

21/05/20074 pages · PDF
Accounts filed

accounts with accounts type full

03/01/200710 pages · PDF
RESOLUTIONS

resolution

20/10/2006PDF
RESOLUTIONS

resolution

20/10/2006PDF
RESOLUTIONS

resolution

20/10/20061 page · PDF
363s

legacy

15/05/20064 pages · PDF
288a

legacy

22/04/20052 pages · PDF
288b

legacy

08/04/20051 page · PDF
288a

legacy

08/04/20052 pages · PDF