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UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED (03857752)

UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED (03857752) is an active UK company. incorporated on 7 October 1999. with registered office in Warrington. The company operates in the Professional, Scientific and Technical Activities sector, engaged in engineering related scientific and technical consulting activities and 1 other business activities. UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED has been registered for 26 years.

Company Number
03857752
Status
active
Type
ltd
Incorporated
7 October 1999
Age
26 years
Address
Chadwick House Warrington Road, Warrington, WA3 6AE
Industry Sector
Professional, Scientific and Technical Activities
Business Activity
Engineering related scientific and technical consulting activities
SIC Codes
71122, 71200

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Introduction
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UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED

UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED is an active company incorporated on 7 October 1999 with the registered office located in Warrington. The company operates in the Professional, Scientific and Technical Activities sector, specifically engaged in engineering related scientific and technical consulting activities and 1 other business activity. UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED was registered 26 years ago.(SIC: 71122, 71200)

Status

active

Active since 26 years ago

Company No

03857752

LTD Company

Age

26 Years

Incorporated 7 October 1999

Size

N/A

Accounts

ARD: 30/9

Up to Date

3 months left

Last Filed

Made up to 31 March 2024 (2 years ago)
Submitted on 4 September 2025 (6 months ago)
Period: 1 April 2023 - 31 March 2024(13 months)
Type: Full Accounts

Next Due

Due by 30 June 2026
Period: 1 April 2024 - 30 September 2025

Confirmation Statement

Up to Date

7 months left

Last Filed

Made up to 7 October 2025 (5 months ago)
Submitted on 16 October 2025 (5 months ago)

Next Due

Due by 21 October 2026
For period ending 7 October 2026

Previous Company Names

NATIONAL NUCLEAR LABORATORY LIMITED
From: 10 November 2008To: 17 December 2024
NEXIA SOLUTIONS LIMITED
From: 8 November 2004To: 10 November 2008
UNITED NUCLEAR TECHNOLOGIES LIMITED
From: 7 October 1999To: 8 November 2004
Contact
Address

Chadwick House Warrington Road Birchwood Park Warrington, WA3 6AE,

Previous Addresses

1100 Daresbury Park Daresbury Warrington Cheshire WA4 4GB
From: 7 October 1999To: 16 December 2009
Timeline

49 key events • 1999 - 2026

Funding Officers Ownership
Company Founded
Oct 99
Director Left
Dec 09
Director Left
Jan 11
Director Left
Jan 14
Director Joined
Mar 14
Director Joined
Aug 14
Director Left
Aug 14
Director Joined
Aug 14
Director Joined
Aug 14
Director Joined
Oct 14
Director Left
Jul 15
Director Joined
Nov 15
Director Left
Dec 15
Director Joined
Jan 16
Director Joined
Jan 16
Director Left
Jan 16
Director Joined
Dec 16
Director Joined
Apr 17
Director Left
Aug 17
Director Left
Apr 18
Director Joined
May 18
Director Joined
Oct 18
Director Left
Mar 19
Director Left
Sept 19
Director Joined
Oct 19
Director Joined
Dec 19
Director Joined
May 20
Director Left
May 20
Director Left
Jul 20
Director Joined
Jul 20
Director Left
Oct 21
Director Joined
Oct 21
Director Joined
Jan 22
Director Left
Jan 22
Director Joined
Apr 23
Director Left
Apr 23
Director Left
May 23
Director Left
Nov 23
Funding Round
Mar 25
Director Joined
Mar 25
Director Joined
Mar 25
Director Left
Mar 25
Director Left
Mar 25
Director Left
Mar 25
Director Left
Jul 25
Director Joined
Oct 25
Director Left
Oct 25
Director Left
Jan 26
Director Joined
Feb 26
1
Funding
47
Officers
0
Ownership
0
Accounts
Capital Table
People

Officers

0

Fundings
Financials
Latest Activities

Filing History

171

Appoint Person Director Company With Name Date
16 February 2026
AP01Appointment of Director
Termination Director Company With Name Termination Date
5 January 2026
TM01Termination of Director
Appoint Person Director Company With Name Date
23 October 2025
AP01Appointment of Director
Termination Director Company With Name Termination Date
23 October 2025
TM01Termination of Director
Confirmation Statement With Updates
16 October 2025
CS01Confirmation Statement
Change Account Reference Date Company Current Extended
4 September 2025
AA01Change of Accounting Reference Date
Termination Director Company With Name Termination Date
30 July 2025
TM01Termination of Director
Resolution
3 April 2025
RESOLUTIONSResolutions
Memorandum Articles
3 April 2025
MAMA
Appoint Person Director Company With Name Date
1 April 2025
AP01Appointment of Director
Appoint Person Director Company With Name Date
1 April 2025
AP01Appointment of Director
Termination Director Company With Name Termination Date
1 April 2025
TM01Termination of Director
Termination Director Company With Name Termination Date
1 April 2025
TM01Termination of Director
Termination Director Company With Name Termination Date
1 April 2025
TM01Termination of Director
Capital Allotment Shares
28 March 2025
SH01Allotment of Shares
Memorandum Articles
20 December 2024
MAMA
Resolution
20 December 2024
RESOLUTIONSResolutions
Certificate Change Of Name Company
17 December 2024
CERTNMCertificate of Incorporation on Change of Name
Confirmation Statement With No Updates
15 October 2024
CS01Confirmation Statement
Accounts With Accounts Type Full
28 August 2024
AAAnnual Accounts
Termination Director Company With Name Termination Date
7 November 2023
TM01Termination of Director
Confirmation Statement With No Updates
18 October 2023
CS01Confirmation Statement
Accounts With Accounts Type Full
29 September 2023
AAAnnual Accounts
Appoint Person Secretary Company With Name Date
18 September 2023
AP03Appointment of Secretary
Termination Secretary Company With Name Termination Date
18 September 2023
TM02Termination of Secretary
Termination Director Company With Name Termination Date
4 May 2023
TM01Termination of Director
Appoint Person Director Company With Name Date
23 April 2023
AP01Appointment of Director
Termination Director Company With Name Termination Date
23 April 2023
TM01Termination of Director
Confirmation Statement With No Updates
13 October 2022
CS01Confirmation Statement
Accounts With Accounts Type Full
1 August 2022
AAAnnual Accounts
Appoint Person Director Company With Name Date
27 January 2022
AP01Appointment of Director
Termination Director Company With Name Termination Date
27 January 2022
TM01Termination of Director
Appoint Person Director Company With Name Date
21 October 2021
AP01Appointment of Director
Termination Director Company With Name Termination Date
19 October 2021
TM01Termination of Director
Confirmation Statement With No Updates
7 October 2021
CS01Confirmation Statement
Accounts With Accounts Type Full
18 August 2021
AAAnnual Accounts
Confirmation Statement With No Updates
7 October 2020
CS01Confirmation Statement
Memorandum Articles
23 September 2020
MAMA
Resolution
23 September 2020
RESOLUTIONSResolutions
Accounts With Accounts Type Full
26 August 2020
AAAnnual Accounts
Termination Director Company With Name Termination Date
2 July 2020
TM01Termination of Director
Appoint Person Director Company With Name Date
2 July 2020
AP01Appointment of Director
Termination Director Company With Name Termination Date
1 June 2020
TM01Termination of Director
Appoint Person Director Company With Name Date
21 May 2020
AP01Appointment of Director
Appoint Person Director Company With Name Date
19 December 2019
AP01Appointment of Director
Confirmation Statement With No Updates
7 October 2019
CS01Confirmation Statement
Appoint Person Director Company With Name Date
4 October 2019
AP01Appointment of Director
Termination Director Company With Name Termination Date
30 September 2019
TM01Termination of Director
Accounts With Accounts Type Full
20 September 2019
AAAnnual Accounts
Termination Director Company With Name Termination Date
19 March 2019
TM01Termination of Director
Appoint Person Director Company With Name Date
19 October 2018
AP01Appointment of Director
Accounts With Accounts Type Full
10 October 2018
AAAnnual Accounts
Confirmation Statement With No Updates
8 October 2018
CS01Confirmation Statement
Appoint Person Director Company With Name Date
16 May 2018
AP01Appointment of Director
Termination Director Company With Name Termination Date
23 April 2018
TM01Termination of Director
Accounts With Accounts Type Full
13 October 2017
AAAnnual Accounts
Confirmation Statement With No Updates
9 October 2017
CS01Confirmation Statement
Termination Director Company With Name Termination Date
18 August 2017
TM01Termination of Director
Appoint Person Director Company With Name Date
24 April 2017
AP01Appointment of Director
Appoint Person Director Company With Name Date
20 December 2016
AP01Appointment of Director
Confirmation Statement With Updates
7 October 2016
CS01Confirmation Statement
Accounts With Accounts Type Full
22 August 2016
AAAnnual Accounts
Termination Director Company With Name Termination Date
29 January 2016
TM01Termination of Director
Appoint Person Director Company With Name Date
28 January 2016
AP01Appointment of Director
Appoint Person Director Company With Name Date
6 January 2016
AP01Appointment of Director
Termination Director Company With Name Termination Date
21 December 2015
TM01Termination of Director
Appoint Person Director Company With Name Date
16 November 2015
AP01Appointment of Director
Annual Return Company With Made Up Date Full List Shareholders
7 October 2015
AR01AR01
Accounts With Accounts Type Full
6 August 2015
AAAnnual Accounts
Termination Director Company With Name Termination Date
7 July 2015
TM01Termination of Director
Resolution
4 February 2015
RESOLUTIONSResolutions
Appoint Person Director Company With Name Date
23 October 2014
AP01Appointment of Director
Accounts With Accounts Type Full
20 October 2014
AAAnnual Accounts
Annual Return Company With Made Up Date Full List Shareholders
7 October 2014
AR01AR01
Appoint Person Director Company With Name Date
12 August 2014
AP01Appointment of Director
Appoint Person Director Company With Name Date
8 August 2014
AP01Appointment of Director
Termination Director Company With Name Termination Date
6 August 2014
TM01Termination of Director
Appoint Person Director Company With Name Date
5 August 2014
AP01Appointment of Director
Appoint Person Director Company With Name
25 March 2014
AP01Appointment of Director
Termination Director Company With Name
14 January 2014
TM01Termination of Director
Accounts With Accounts Type Full
30 December 2013
AAAnnual Accounts
Annual Return Company With Made Up Date Full List Shareholders
14 October 2013
AR01AR01
Termination Secretary Company With Name
27 March 2013
TM02Termination of Secretary
Appoint Person Secretary Company With Name
27 March 2013
AP03Appointment of Secretary
Accounts With Accounts Type Full
27 December 2012
AAAnnual Accounts
Annual Return Company With Made Up Date Full List Shareholders
6 November 2012
AR01AR01
Accounts With Accounts Type Full
4 January 2012
AAAnnual Accounts
Annual Return Company With Made Up Date Full List Shareholders
3 November 2011
AR01AR01
Accounts With Accounts Type Full
5 January 2011
AAAnnual Accounts
Termination Director Company With Name
4 January 2011
TM01Termination of Director
Annual Return Company With Made Up Date Full List Shareholders
12 October 2010
AR01AR01
Change Person Director Company With Change Date
11 October 2010
CH01Change of Director Details
Auditors Resignation Company
3 March 2010
AUDAUD
Accounts With Accounts Type Full
4 February 2010
AAAnnual Accounts
Change Registered Office Address Company With Date Old Address
16 December 2009
AD01Change of Registered Office Address
Annual Return Company With Made Up Date Full List Shareholders
8 December 2009
AR01AR01
Change Person Director Company With Change Date
7 December 2009
CH01Change of Director Details
Change Person Director Company With Change Date
7 December 2009
CH01Change of Director Details
Change Person Director Company With Change Date
7 December 2009
CH01Change of Director Details
Change Person Director Company With Change Date
7 December 2009
CH01Change of Director Details
Change Person Director Company With Change Date
7 December 2009
CH01Change of Director Details
Termination Director Company With Name
7 December 2009
TM01Termination of Director
Legacy
24 September 2009
288aAppointment of Director or Secretary
Legacy
7 September 2009
288aAppointment of Director or Secretary
Legacy
7 September 2009
288bResignation of Director or Secretary
Legacy
7 September 2009
288aAppointment of Director or Secretary
Legacy
7 September 2009
288bResignation of Director or Secretary
Legacy
9 July 2009
288aAppointment of Director or Secretary
Legacy
30 June 2009
288bResignation of Director or Secretary
Resolution
21 April 2009
RESOLUTIONSResolutions
Legacy
21 April 2009
288aAppointment of Director or Secretary
Legacy
21 April 2009
288bResignation of Director or Secretary
Legacy
21 April 2009
288bResignation of Director or Secretary
Legacy
21 April 2009
288bResignation of Director or Secretary
Legacy
21 April 2009
288bResignation of Director or Secretary
Legacy
21 April 2009
288bResignation of Director or Secretary
Legacy
21 April 2009
288aAppointment of Director or Secretary
Legacy
21 April 2009
288aAppointment of Director or Secretary
Legacy
21 April 2009
288aAppointment of Director or Secretary
Legacy
23 February 2009
288aAppointment of Director or Secretary
Legacy
23 February 2009
288aAppointment of Director or Secretary
Legacy
23 February 2009
288bResignation of Director or Secretary
Accounts With Accounts Type Full
27 November 2008
AAAnnual Accounts
Memorandum Articles
14 November 2008
MEM/ARTSMEM/ARTS
Certificate Change Of Name Company
10 November 2008
CERTNMCertificate of Incorporation on Change of Name
Legacy
10 October 2008
363aAnnual Return
Legacy
16 July 2008
288bResignation of Director or Secretary
Accounts With Accounts Type Full
3 February 2008
AAAnnual Accounts
Legacy
7 January 2008
288aAppointment of Director or Secretary
Legacy
7 January 2008
288bResignation of Director or Secretary
Legacy
7 January 2008
288aAppointment of Director or Secretary
Legacy
7 January 2008
288bResignation of Director or Secretary
Legacy
18 October 2007
363aAnnual Return
Accounts With Made Up Date
6 February 2007
AAAnnual Accounts
Legacy
10 October 2006
363aAnnual Return
Legacy
26 June 2006
288cChange of Particulars
Accounts With Accounts Type Dormant
23 January 2006
AAAnnual Accounts
Legacy
18 October 2005
363sAnnual Return (shuttle)
Legacy
23 May 2005
288aAppointment of Director or Secretary
Legacy
11 May 2005
288aAppointment of Director or Secretary
Legacy
3 May 2005
288aAppointment of Director or Secretary
Legacy
3 May 2005
288aAppointment of Director or Secretary
Legacy
22 April 2005
288aAppointment of Director or Secretary
Legacy
18 April 2005
88(2)R88(2)R
Resolution
18 April 2005
RESOLUTIONSResolutions
Resolution
18 April 2005
RESOLUTIONSResolutions
Legacy
18 April 2005
123Notice of Increase in Nominal Capital
Legacy
11 April 2005
288aAppointment of Director or Secretary
Legacy
11 April 2005
288bResignation of Director or Secretary
Legacy
11 April 2005
288aAppointment of Director or Secretary
Legacy
31 March 2005
288aAppointment of Director or Secretary
Legacy
21 March 2005
288aAppointment of Director or Secretary
Legacy
21 March 2005
288bResignation of Director or Secretary
Accounts With Accounts Type Dormant
21 January 2005
AAAnnual Accounts
Certificate Change Of Name Company
8 November 2004
CERTNMCertificate of Incorporation on Change of Name
Legacy
3 November 2004
363sAnnual Return (shuttle)
Accounts With Accounts Type Dormant
31 October 2003
AAAnnual Accounts
Legacy
13 October 2003
363sAnnual Return (shuttle)
Legacy
13 August 2003
287Change of Registered Office
Accounts With Accounts Type Dormant
20 December 2002
AAAnnual Accounts
Legacy
10 October 2002
363sAnnual Return (shuttle)
Legacy
17 October 2001
363sAnnual Return (shuttle)
Accounts With Accounts Type Dormant
11 September 2001
AAAnnual Accounts
Accounts With Accounts Type Dormant
2 January 2001
AAAnnual Accounts
Resolution
2 January 2001
RESOLUTIONSResolutions
Resolution
2 January 2001
RESOLUTIONSResolutions
Resolution
2 January 2001
RESOLUTIONSResolutions
Resolution
2 January 2001
RESOLUTIONSResolutions
Legacy
8 November 2000
363sAnnual Return (shuttle)
Legacy
15 May 2000
225Change of Accounting Reference Date
Incorporation Company
7 October 1999
NEWINCIncorporation