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The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers are those entities, including individual and legal persons, have significant controls over the company in focus. The offspring entities and appointments are those entities that the company in focus can influence on.

Clicking the links on parent entities or officers, and offspring entities or managed companies will put them in focus and show upstream or downstream connections. In general, ascendant entities can be found by moving toward upstream, and descendant entities are by toward downstream. In this way, progenitor entities such as grandparent companies (parents of parent), sibling companies (children of parent), partner companies (parents of child), and progeny entities such as grandchild companies (children of child) can be found easily.

Parent entities and officers
Active 8
  • 1
    Dunn, Shaun Michael
    Born in February 1973
    Individual (2 offsprings)
    Officer
    2021-09-28 ~ now
    OF - Director → CIF 0
  • 2
    Brown, Graham, Dr
    Born in February 1971
    Individual (5 offsprings)
    Officer
    2008-10-24 ~ now
    OF - Director → CIF 0
  • 3
    Fasham, Stephen James
    Born in January 1973
    Individual (10 offsprings)
    Officer
    2019-04-16 ~ now
    OF - Director → CIF 0
  • 4
    Moynehan, Gary John Scott
    Born in June 1979
    Individual (11 offsprings)
    Officer
    2025-03-04 ~ now
    OF - Director → CIF 0
  • 5
    Partridge, Simon Charles
    Born in November 1970
    Individual (9 offsprings)
    Officer
    2006-03-09 ~ now
    OF - Director → CIF 0
  • 6
    Newborough, Darryl, Dr
    Born in June 1975
    Individual (1 offspring)
    Officer
    2015-08-28 ~ now
    OF - Director → CIF 0
  • 7
    Martin, Stephen Paul
    Born in April 1977
    Individual (1 offspring)
    Officer
    2020-07-14 ~ now
    OF - Director → CIF 0
  • 8
    SONARDYNE GROUP LIMITED - 2021-09-29
    Ocean House, Blackbushe Business Park, Yateley, England
    Active Corporate (7 parents, 10 offsprings)
    Equity (Company account)
    41,278,006 GBP2023-12-31
    Person with significant control
    2020-03-31 ~ now
    PE - Ownership of shares – 75% or more → CIF 0
    PE - Ownership of voting rights - 75% or more → CIF 0
    PE - Right to appoint or remove directors → CIF 0
Ceased 23
  • 1
    Binks, Richard Andrew
    Director born in July 1958
    Individual (1 offspring)
    Officer
    1999-06-29 ~ 2004-09-30
    OF - Director → CIF 0
    Binks, Richard Andrew
    Company Director born in July 1958
    Individual (1 offspring)
    2007-10-25 ~ 2015-07-10
    OF - Director → CIF 0
  • 2
    Dyer, Graham John
    Chartered Accountant born in March 1953
    Individual (3 offsprings)
    Officer
    2014-02-07 ~ 2018-12-31
    OF - Director → CIF 0
  • 3
    Norton, John Ralph
    Manufacturing Director born in April 1966
    Individual (1 offspring)
    Officer
    2019-10-22 ~ 2024-06-28
    OF - Director → CIF 0
  • 4
    Moore, Tim
    Company Director born in November 1960
    Individual
    Officer
    2006-03-09 ~ 2018-12-31
    OF - Director → CIF 0
  • 5
    Williams, Peter Vaughan
    Engineer born in June 1947
    Individual
    Officer
    1996-11-26 ~ 2011-03-22
    OF - Director → CIF 0
  • 6
    Chibah, Malik
    Engineer born in April 1974
    Individual (1 offspring)
    Officer
    2019-04-16 ~ 2022-04-29
    OF - Director → CIF 0
  • 7
    Jamieson, Grant
    Engineer born in March 1959
    Individual (1 offspring)
    Officer
    1998-11-25 ~ 2003-11-21
    OF - Director → CIF 0
  • 8
    Polley, Ian Fane
    Engineer born in October 1943
    Individual
    Officer
    1994-06-22 ~ 2006-10-31
    OF - Director → CIF 0
  • 9
    Partridge, Charles John
    Company Director born in September 1939
    Individual (6 offsprings)
    Officer
    ~ 2020-04-21
    OF - Director → CIF 0
  • 10
    Brannan, Cheryl
    Hr Director born in August 1961
    Individual
    Officer
    2015-08-01 ~ 2018-01-10
    OF - Director → CIF 0
  • 11
    Kelland, Nigel Christopher
    Geophysicist born in October 1941
    Individual
    Officer
    1996-11-26 ~ 2006-04-30
    OF - Director → CIF 0
  • 12
    Partridge, Betsan Felicity
    Company Director born in December 1941
    Individual (1 offspring)
    Officer
    ~ 2019-03-12
    OF - Director → CIF 0
    Partridge, Betsan Felicity
    Individual (1 offspring)
    Officer
    ~ 1997-02-03
    OF - Secretary → CIF 0
  • 13
    Riches, David Neil, Dr
    Engineer born in April 1951
    Individual
    Officer
    1997-02-03 ~ 2014-05-24
    OF - Director → CIF 0
  • 14
    Balloch, Robert Baird
    Sales Director born in November 1965
    Individual (2 offsprings)
    Officer
    2006-03-09 ~ 2014-05-06
    OF - Director → CIF 0
  • 15
    Salmon, James Douglas
    Engineer born in October 1940
    Individual (1 offspring)
    Officer
    1998-04-05 ~ 2002-02-01
    OF - Director → CIF 0
  • 16
    Davey, Martin
    Company Director born in October 1958
    Individual (16 offsprings)
    Officer
    2019-02-19 ~ 2024-12-31
    OF - Director → CIF 0
  • 17
    Clutton, Roger Barry
    Accountant born in July 1949
    Individual (1 offspring)
    Officer
    1997-02-03 ~ 2014-05-04
    OF - Director → CIF 0
    Clutton, Roger Barry
    Accountant
    Individual (1 offspring)
    Officer
    1997-02-03 ~ 2013-10-31
    OF - Secretary → CIF 0
  • 18
    Ramsden, John Edward
    Director born in August 1963
    Individual (1 offspring)
    Officer
    2009-12-16 ~ 2021-12-31
    OF - Director → CIF 0
  • 19
    Bjoroy, Robin Per
    Director born in August 1966
    Individual
    Officer
    2015-11-09 ~ 2016-04-18
    OF - Director → CIF 0
  • 20
    Rayner, Ralph Frank, Dr
    Director born in December 1954
    Individual (4 offsprings)
    Officer
    2006-04-01 ~ 2022-05-01
    OF - Director → CIF 0
  • 21
    Taylor, Jane Elizabeth
    Accountant born in September 1965
    Individual (1 offspring)
    Officer
    2011-09-27 ~ 2016-11-30
    OF - Director → CIF 0
    Taylor, Jane Elizabeth
    Individual (1 offspring)
    Officer
    2013-10-31 ~ 2016-11-30
    OF - Secretary → CIF 0
  • 22
    Pearce, Christopher Dudley
    Engineer born in May 1950
    Individual
    Officer
    1996-11-26 ~ 2014-03-28
    OF - Director → CIF 0
  • 23
    SONARDYNE HOLDINGS LIMITED - now
    ALTONQUART LIMITED - 1986-01-01
    Ocean House, Blackbushe Business Park, Yateley, Hampshire, England
    Active Corporate (4 parents, 5 offsprings)
    Equity (Company account)
    43,564,690 GBP2023-12-31
    Person with significant control
    2016-04-06 ~ 2020-03-31
    PE - Ownership of shares – 75% or more → CIF 0
parent relation
Company in focus

SONARDYNE INTERNATIONAL LIMITED

Previous names
SONARDYNE (WESTERN) LIMITED - 1992-06-15
SONARDYNE CONSULTANTS LIMITED - 1983-03-21
SONARDYNE MARKETING LIMITED - 1980-12-31
Standard Industrial Classification
26511 - Manufacture Of Electronic Measuring, Testing Etc. Equipment, Not For Industrial Process Control
Brief company account
Cost of Sales
-26,917,053 GBP2023-01-01 ~ 2023-12-31
-22,192,910 GBP2022-01-01 ~ 2022-12-31
Administrative Expenses
-26,771,550 GBP2023-01-01 ~ 2023-12-31
-20,897,938 GBP2022-01-01 ~ 2022-12-31
Other Interest Receivable/Similar Income (Finance Income)
800,680 GBP2023-01-01 ~ 2023-12-31
1,107,999 GBP2022-01-01 ~ 2022-12-31
Profit/Loss on Ordinary Activities Before Tax
15,530,715 GBP2023-01-01 ~ 2023-12-31
7,034,972 GBP2022-01-01 ~ 2022-12-31
Profit/Loss
13,328,351 GBP2023-01-01 ~ 2023-12-31
6,381,890 GBP2022-01-01 ~ 2022-12-31
Comprehensive Income/Expense
13,328,351 GBP2023-01-01 ~ 2023-12-31
6,381,890 GBP2022-01-01 ~ 2022-12-31
Property, Plant & Equipment
9,046,304 GBP2023-12-31
8,146,334 GBP2022-12-31
Fixed Assets - Investments
112,620 GBP2023-12-31
112,621 GBP2022-12-31
Fixed Assets
9,158,924 GBP2023-12-31
8,258,955 GBP2022-12-31
Debtors
20,270,559 GBP2023-12-31
17,777,118 GBP2022-12-31
Cash at bank and in hand
8,250,217 GBP2023-12-31
3,128,730 GBP2022-12-31
Current Assets
47,701,272 GBP2023-12-31
36,143,271 GBP2022-12-31
Creditors
Current, Amounts falling due within one year
-11,515,227 GBP2022-12-31
Net Current Assets/Liabilities
33,444,867 GBP2023-12-31
24,628,044 GBP2022-12-31
Total Assets Less Current Liabilities
42,603,791 GBP2023-12-31
32,886,999 GBP2022-12-31
Net Assets/Liabilities
41,610,007 GBP2023-12-31
32,281,657 GBP2022-12-31
Equity
Called up share capital
12,286,362 GBP2023-12-31
12,286,362 GBP2022-12-31
12,286,362 GBP2021-12-31
Retained earnings (accumulated losses)
29,323,645 GBP2023-12-31
19,995,295 GBP2022-12-31
22,113,405 GBP2021-12-31
Equity
41,610,007 GBP2023-12-31
32,281,657 GBP2022-12-31
34,399,767 GBP2021-12-31
Profit/Loss
Retained earnings (accumulated losses)
13,328,351 GBP2023-01-01 ~ 2023-12-31
6,381,890 GBP2022-01-01 ~ 2022-12-31
Dividends Paid
Retained earnings (accumulated losses)
-8,500,000 GBP2022-01-01 ~ 2022-12-31
Average Number of Employees
3092023-01-01 ~ 2023-12-31
2662022-01-01 ~ 2022-12-31
Wages/Salaries
16,850,507 GBP2023-01-01 ~ 2023-12-31
14,425,438 GBP2022-01-01 ~ 2022-12-31
Pension & Other Post-employment Benefit Costs/Other Pension Costs
1,782,638 GBP2023-01-01 ~ 2023-12-31
1,285,756 GBP2022-01-01 ~ 2022-12-31
Staff Costs/Employee Benefits Expense
20,536,119 GBP2023-01-01 ~ 2023-12-31
17,376,869 GBP2022-01-01 ~ 2022-12-31
Audit Fees/Expenses
32,000 GBP2023-01-01 ~ 2023-12-31
31,000 GBP2022-01-01 ~ 2022-12-31
Director Remuneration
849,238 GBP2023-01-01 ~ 2023-12-31
1,370,587 GBP2022-01-01 ~ 2022-12-31
Deferred Tax Expense/Credit Relating to Origination/Reversal Timing Differences
139,802 GBP2023-01-01 ~ 2023-12-31
482,359 GBP2022-01-01 ~ 2022-12-31
Property, Plant & Equipment - Gross Cost
Owned/Freehold, Land and buildings
6,826,359 GBP2023-12-31
6,826,359 GBP2022-12-31
Plant and equipment
10,140,335 GBP2023-12-31
9,639,333 GBP2022-12-31
Furniture and fittings
4,201,915 GBP2023-12-31
3,819,076 GBP2022-12-31
Motor vehicles
156,186 GBP2023-12-31
138,934 GBP2022-12-31
Property, Plant & Equipment - Gross Cost
26,149,561 GBP2023-12-31
24,832,744 GBP2022-12-31
Property, Plant & Equipment - Other Disposals
Plant and equipment
-821,480 GBP2023-01-01 ~ 2023-12-31
Furniture and fittings
-192,633 GBP2023-01-01 ~ 2023-12-31
Motor vehicles
-24,893 GBP2023-01-01 ~ 2023-12-31
Property, Plant & Equipment - Other Disposals
-1,085,228 GBP2023-01-01 ~ 2023-12-31
Property, Plant & Equipment - Accumulated Depreciation & Impairment
Plant and equipment
7,802,654 GBP2023-12-31
7,750,532 GBP2022-12-31
Furniture and fittings
3,467,470 GBP2023-12-31
3,411,052 GBP2022-12-31
Motor vehicles
124,264 GBP2023-12-31
137,677 GBP2022-12-31
Property, Plant & Equipment - Accumulated Depreciation & Impairment
17,103,257 GBP2023-12-31
16,686,410 GBP2022-12-31
Property, Plant & Equipment - Increase From Depreciation Charge for Year
Land and buildings, Owned/Freehold
97,922 GBP2023-01-01 ~ 2023-12-31
Plant and equipment
785,049 GBP2023-01-01 ~ 2023-12-31
Furniture and fittings
245,406 GBP2023-01-01 ~ 2023-12-31
Motor vehicles
11,480 GBP2023-01-01 ~ 2023-12-31
Property, Plant & Equipment - Increase From Depreciation Charge for Year
1,409,375 GBP2023-01-01 ~ 2023-12-31
Property, Plant & Equipment - Other Disposals/Decrease in Depreciation & Impairment
Plant and equipment
-732,927 GBP2023-01-01 ~ 2023-12-31
Furniture and fittings
-188,988 GBP2023-01-01 ~ 2023-12-31
Motor vehicles
-24,893 GBP2023-01-01 ~ 2023-12-31
Property, Plant & Equipment - Other Disposals/Decrease in Depreciation & Impairment
-992,528 GBP2023-01-01 ~ 2023-12-31
Property, Plant & Equipment
Owned/Freehold, Land and buildings
5,179,857 GBP2023-12-31
Plant and equipment
2,337,681 GBP2023-12-31
1,888,801 GBP2022-12-31
Furniture and fittings
734,445 GBP2023-12-31
408,024 GBP2022-12-31
Motor vehicles
31,922 GBP2023-12-31
1,257 GBP2022-12-31
Land and buildings, Owned/Freehold
5,277,779 GBP2022-12-31
Amounts invested in assets
Non-current
112,620 GBP2023-12-31
112,621 GBP2022-12-31
Finished Goods/Goods for Resale
871,468 GBP2023-12-31
503,429 GBP2022-12-31
Trade Debtors/Trade Receivables
Current
8,789,072 GBP2023-12-31
6,077,944 GBP2022-12-31
Amount of corporation tax that is recoverable
Current
0 GBP2023-12-31
70,647 GBP2022-12-31
Amounts Owed by Group Undertakings
Current
8,658,093 GBP2023-12-31
9,503,530 GBP2022-12-31
Other Debtors
Current
190,297 GBP2023-12-31
336,858 GBP2022-12-31
Prepayments/Accrued Income
Current
2,418,207 GBP2023-12-31
1,771,889 GBP2022-12-31
Debtors
Amounts falling due within one year, Current
20,055,669 GBP2023-12-31
Current, Amounts falling due within one year
17,760,868 GBP2022-12-31
Trade Creditors/Trade Payables
Current
1,456,803 GBP2023-12-31
1,498,097 GBP2022-12-31
Amounts owed to group undertakings
Current
2,690,695 GBP2023-12-31
3,318,139 GBP2022-12-31
Corporation Tax Payable
Current
2,000,585 GBP2023-12-31
245,000 GBP2022-12-31
Other Taxation & Social Security Payable
Current
857,026 GBP2023-12-31
435,730 GBP2022-12-31
Other Creditors
Current
1,563 GBP2023-12-31
1,822 GBP2022-12-31
Accrued Liabilities/Deferred Income
Current
7,249,733 GBP2023-12-31
6,016,439 GBP2022-12-31
Creditors
Current
14,256,405 GBP2023-12-31
11,515,227 GBP2022-12-31
Future Minimum Lease Payments Under Non-cancellable Operating Leases
Amounts falling due within one year
308,350 GBP2023-12-31
263,000 GBP2022-12-31
Between two and five year
103,769 GBP2023-12-31
324,508 GBP2022-12-31
Future Minimum Lease Payments Under Non-cancellable Operating Leases
412,119 GBP2023-12-31
587,508 GBP2022-12-31
Related profiles found in government register
  • SONARDYNE INTERNATIONAL LIMITED
    Info
    SONARDYNE (WESTERN) LIMITED - 1992-06-15
    SONARDYNE CONSULTANTS LIMITED - 1992-06-15
    SONARDYNE MARKETING LIMITED - 1992-06-15
    Registered number 01299452
    Ocean House Blackbushe Business Park, Saxony Way, Yateley, Hampshire GU46 6GD
    PRIVATE LIMITED COMPANY incorporated on 1977-02-21 (49 years). The company status is Active.
    The last date of confirmation statement was made at 2025-02-11
    CIF 0
  • SONARDYNE INTERNATIONAL LIMITED
    S
    Registered number 01299452
    Ocean House, Blackbushe Business Park, Saxony Way, Yateley, Hampshire, England, GU46 6GD
    Private Company Limited By Shares in Registrar Of Companies, England And Wales, England
    CIF 1
  • SONARDYNE INTERNATIONAL LIMITED
    S
    Registered number 01299452
    Ocean House, Blackbushe Business Park, Yateley, England, GU46 6GD
    Private Company Limited By Shares in Companies Register Of England And Wales, England And Wales
    CIF 2
  • SONARDYNE INTERNATIONAL LTD
    S
    Registered number 01299452
    Ocean House, Saxony Way, Blackbushe Business Park, Yateley, England, GU46 6GD
    Limited Company in Companies House, England
    CIF 3
(more)
child relation
Offspring entities and appointments
Active 1
  • STEVTON (NO. 149) LIMITED - 1999-06-03
    Ocean House Sonardyne International Limited, Saxony Way, Yateley, Hampshire, United Kingdom
    Active Corporate (4 parents, 1 offspring)
    Equity (Company account)
    89,199 GBP2023-12-31
    Person with significant control
    2016-04-06 ~ now
    CIF 3 - Ownership of shares – 75% or more → OE
Ceased 4
  • 1
    CHELSEA TECHNOLOGIES LIMITED - 2018-11-29
    55 Central Avenue, West Molesey, Surrey
    Dissolved Corporate (3 parents, 1 offspring)
    Person with significant control
    2018-10-15 ~ 2020-03-31
    CIF 1 - Right to appoint or remove directors → OE
    CIF 1 - Ownership of shares – 75% or more → OE
    CIF 1 - Ownership of voting rights - 75% or more → OE
  • 2
    H. SCIENTIFIC LIMITED - 2018-03-02
    28 Landport Terrace, Portsmouth
    Active Corporate (4 parents)
    Profit/Loss (Company account)
    552,314 GBP2023-07-01 ~ 2024-06-30
    Person with significant control
    2017-09-22 ~ 2024-02-26
    CIF 5 - Has significant influence or control → OE
  • 3
    SOLARDYNE LIMITED - 2025-02-24
    CHELSEA TECHNOLOGIES GROUP LIMITED - 2020-01-31
    CHELSEA TECHNOLOGIES LIMITED - 2019-09-16
    Ocean House Blackbushe Business Park, Saxony Way, Yateley, Hampshire, England
    Active Corporate (5 parents)
    Equity (Company account)
    -57,760 GBP2023-12-31
    Person with significant control
    2020-02-12 ~ 2023-07-13
    CIF 2 - Right to appoint or remove directors → OE
    CIF 2 - Ownership of shares – 75% or more → OE
    CIF 2 - Ownership of voting rights - 75% or more → OE
  • 4
    SONARDYNE WAVEFRONT LIMITED - 2020-02-04
    WAVEFRONT SYSTEMS LIMITED - 2010-09-17
    Ocean House, Blackbushe Business Park, Yateley, England
    Active Corporate (7 parents)
    Equity (Company account)
    2,446,592 GBP2023-12-31
    Person with significant control
    2018-11-21 ~ 2020-04-07
    CIF 4 - Ownership of shares – 75% or more → OE

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Contains public sector information retrieved at 9 February 2026 and licensed under the Open Government Licence v3.0.