WESTMINSTER PETROLEUM LIMITED

🌳Matureactive
05646887 · ltd · incorporated 2005-12-07
Investment thesis
Well-run mature business — low negotiation leverage; premium likely.
Why interesting: Textbook target; clean filings, stable trading.
Why risky: No pressure on seller; any deal likely at full price.
Opportunity decay
hardening · 12-months
Already tight — no obvious softening catalysts on the horizon.
  • · Thesis: well-run, low negotiation leverage
🔒Estimated value
—
Upgrade to see
Turnover
—
year to Mar 2024
Net worth
—
book net assets
Opportunity
74/100
Strong
🔔
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What this business does
Primary activity: SIC 99999
Sector: Extraterritorial bodies
Investor take
Pursue
Strong opportunity: active trading company with strong profile and bankable structure.

Opportunity 74/100 (strong), bankability 75/100. High owner-dependency — earn-out structure likely required for clean transition. Share purchase looks the cleaner deal structure. Most likely exit: share sale to pe / searcher (58/100).

Data confidence

Overall: medium (75/100)

Adequate coverage. AI outputs are reliable for the sections scored high; verify the rest in diligence.

Company profile
address, 1 SIC codes, incorporation date
100
Financials
1 year of iXBRL accounts extracted (no YoY comparison) + narrative notes parsed
50
Lenders & charges
Confirmed no charges registered
85
Directors & officers
16 officers (2 active, 16 linked, 11 with DOB)
84
Ownership & PSC
1 active PSC(s) of 2 total, 2 with control declared
90
Director network
17 connected companies via shared directors
90
Filing history
94 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
74/100Strong
PassWatchWorth a lookStrongExceptional 

Solid opportunity signal. Worth a dedicated memo and management meeting.

Business quality
70
Active, clean filings, stable charge profile.
Acquirability
55
Some acquirability indicators.
Risk profile
85
Few red flags.
Signal strength
90
Good data coverage for analysis.

Key financials

1 year extracted from filed iXBRL accounts
Cash
—
Net Worth
—
Current Assets
—
Current Liabilities
—

Financials

Extracted from Companies House accounts · accounting standard unknown
Metric2024-03-31

Amounts extracted automatically from iXBRL. Fields left blank were not reported or not mapped. Values in GBP unless stated.

🔒Filing-note intelligence

1 signal detected in this company's narrative notes — going-concern language, audit opinion, contingent liabilities, related-party transactions.

Available from the Pro tier upwards.

See pricing →

Recent activity

Last 30 days
0
filings
Last 90 days
0
filings
Last 180 days
2
filings
  • • 1 accounts
  • • 1 confirmation-statement
Counts from Companies House filing history.
Corporate timeline (47 events)Click to expand
  1. 2025-12-22
    📄
    accounts-with-accounts-type-dormant
    accounts · AA
  2. 2024-12-09
    📄
    change-person-director-company-with-change-date
    officers · CH01
  3. 2024-12-03
    📄
    accounts-with-accounts-type-dormant
    accounts · AA
  4. 2023-12-08
    📄
    change-person-director-company-with-change-date
    officers · CH01
  5. 2023-12-08
    📄
    cessation-of-a-person-with-significant-control
    persons-with-significant-control · PSC07
  6. 2023-12-08
    📄
    notification-of-a-person-with-significant-control
    persons-with-significant-control · PSC02
  7. 2023-06-22
    📄
    change-to-a-person-with-significant-control
    persons-with-significant-control · PSC04
  8. 2023-04-26
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  9. 2022-11-24
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  10. 2022-09-26
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  11. 2022-05-04
    📄
    termination-director-company-with-name-termination-date
    officers · TM01
  12. 2022-04-20
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  13. 2021-11-10
    📄
    accounts-with-accounts-type-dormant
    accounts · AA
  14. 2021-03-02
    📄
    accounts-with-accounts-type-dormant
    accounts · AA
  15. 2021-02-21
    ➖
    ELLIS, Joseph John resigned
    director
  16. 2019-11-27
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  17. 2019-01-31
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  18. 2015-10-01
    ➕
    DWAN, Nicholas Richard appointed
    director
  19. 2015-10-01
    ➕
    DWAN, Robert Edward appointed
    director
  20. 2015-10-01
    ➕
    ELLIS, Joseph John appointed
    director
  21. 2015-09-30
    ➖
    MACKIE, Ian Fraser resigned
    secretary
  22. 2015-09-30
    ➖
    MACKIE, Ian Fraser resigned
    director
  23. 2015-09-30
    ➖
    MURPHY, Donal resigned
    director
  24. 2015-02-12
    ➖
    VIAN, Paul Thomas resigned
    director
  25. 2012-10-01
    ➕
    MACKIE, Ian Fraser appointed
    secretary
  26. 2012-10-01
    ➕
    MACKIE, Ian Fraser appointed
    director
  27. 2012-09-30
    ➖
    STEWART, Jonathan resigned
    secretary
  28. 2012-09-30
    ➖
    STEWART, Jonathan resigned
    director
  29. 2010-10-14
    ➕
    VIAN, Paul Thomas appointed
    director
  30. 2010-09-10
    ➖
    CHAMBERS, Samuel resigned
    director
  31. 2010-07-01
    ➖
    HOLMES, Ludmila resigned
    director
  32. 2008-10-31
    ➖
    MANNING, Alan Clive resigned
    secretary
  33. 2008-10-23
    ➖
    CANTRELL, John Robert resigned
    director
  34. 2008-03-06
    ➕
    STEWART, Jonathan appointed
    secretary
  35. 2008-03-06
    ➕
    CHAMBERS, Samuel appointed
    director
  36. 2008-03-06
    ➖
    DONALD, Neil Scott resigned
    director
  37. 2008-03-06
    ➕
    MURPHY, Donal appointed
    director
  38. 2008-03-06
    ➕
    STEWART, Jonathan appointed
    director
  39. 2005-12-07
    🏢
    Company incorporated
    As WESTMINSTER PETROLEUM LIMITED
  40. 2005-12-07
    ➕
    MANNING, Alan Clive appointed
    secretary
  41. 2005-12-07
    ➕
    ABERGAN REED NOMINEES LTD appointed
    corporate-nominee-secretary
  42. 2005-12-07
    ➖
    ABERGAN REED NOMINEES LTD resigned
    corporate-nominee-secretary
  43. 2005-12-07
    ➕
    CANTRELL, John Robert appointed
    director
  44. 2005-12-07
    ➕
    DONALD, Neil Scott appointed
    director
  45. 2005-12-07
    ➕
    HOLMES, Ludmila appointed
    director
  46. 2005-12-07
    ➕
    ABERGAN REED LIMITED appointed
    corporate-nominee-director
  47. 2005-12-07
    ➖
    ABERGAN REED LIMITED resigned
    corporate-nominee-director

Owner dependency

66/100
High — earn-out structure required

Material founder dependency. Consider a 2-3 year earn-out and build in a handover plan before completion.

FACTORS
  • +Two-director setup: Only two active directors — typical of owner-managed SMEs but limits succession.
  • +Family involvement: Multiple officers share a surname — likely family business, which concentrates governance.

Succession & seller-readiness

51/100
Moderate signal

Some succession indicators present. Worth watching; approach if sector/strategy fits.

SIGNALS
  • secondaryTwo-director governance: Small-team governance. Succession depth is thin but not absent.
  • secondaryStable-but-static management: Company is 20 years old and no new directors in the last 3 years — succession not yet being planned internally.
  • supportingClean filings + long tenure: Disciplined long-tenure operator — classic lifestyle-business pattern that often sells quietly.

Red flags

clean
No red flags detected from available public data. (This is not a clean bill of health — detailed accounts review still recommended.)

Group structure

Thames Marine Services Ltd is the ultimate parent — holding 75%+ shares. This company sits inside their group.

🏛️
Thames Marine Services Ltd
Corporate parent · holds 75-100% shares
ultimate parent
⬇
WESTMINSTER PETROLEUM LIMITED
This company · 05646887

Parent relationships inferred from Persons with Significant Control filings. Full subsidiary tree requires reverse-lookup (coming).

Shareholders & ownership

1 active beneficial owner · dominant holder ≥75%
NameSharesVoting rightsNature of controlNotified
Thames Marine Services Ltd
Corporate entity
75–100%
—75-100% shares01/12/2023
1 historic (ceased) PSC
  • Mr Robert Dwanceased 01/12/2023· 25-50% shares

From Companies House Persons with Significant Control filings. Share ranges are banded per the public PSC regime.

🔒Co-director network graph

Radial SVG graph showing every company connected via shared directors, colour-coded by status.

Available from the Pro tier upwards.

See pricing →

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Peers ranked by estimated value, then turnover, then opportunity score.See all →
🔒Tailored diligence questions

6 specific questions generated from this company's actual signals — liquidity, leverage, director age, charge count, red flags, age-of-company.

Available from the Pro tier upwards.

See pricing →
🔒Advanced scoring suite

Exit-route ranking, improvement thesis, quiet-distress detector, covenant-pressure proxy, extraction monitor, approaching triggers, ownership drift, local cluster, value trap, debt capacity, archetype classification — 48+ scoring modules.

Available from the Pro tier upwards.

See pricing →

Company details

Statusactive
Typeltd
Incorporated2005-12-07
Jurisdictionengland-wales
Primary SIC99999 — SIC 99999

Registered office

9-10 Copper Row
London
SE1 2LH
England

Filing status

Accounts
Next due: 2026-12-31
Last made up to: 2025-03-31
Confirmation statement
Next due: 2026-12-21
Last: 2025-12-07

Officers (2 active · 14 resigned)

DWAN, Nicholas Richard→
director · ~46y · appointed 2015-10-01
View their other companies + combined net worth →
Active
DWAN, Robert Edward→
director · ~44y · appointed 2015-10-01
View their other companies + combined net worth →
Active
MACKIE, Ian Fraser→
secretary · appointed 2012-10-01 · resigned 2015-09-30
Resigned
MANNING, Alan Clive→
secretary · appointed 2005-12-07 · resigned 2008-10-31
Resigned
STEWART, Jonathan→
secretary · appointed 2008-03-06 · resigned 2012-09-30
Resigned
ABERGAN REED NOMINEES LTD→
corporate-nominee-secretary · appointed 2005-12-07 · resigned 2005-12-07
Resigned
CANTRELL, John Robert→
director · ~81y · appointed 2005-12-07 · resigned 2008-10-23
Resigned
CHAMBERS, Samuel→
director · ~81y · appointed 2008-03-06 · resigned 2010-09-10
Resigned
DONALD, Neil Scott→
director · ~77y · appointed 2005-12-07 · resigned 2008-03-06
Resigned
ELLIS, Joseph John→
director · ~48y · appointed 2015-10-01 · resigned 2021-02-21
Resigned
HOLMES, Ludmila→
director · ~69y · appointed 2005-12-07 · resigned 2010-07-01
Resigned
MACKIE, Ian Fraser→
director · ~64y · appointed 2012-10-01 · resigned 2015-09-30
Resigned
MURPHY, Donal→
director · ~61y · appointed 2008-03-06 · resigned 2015-09-30
Resigned
STEWART, Jonathan→
director · ~53y · appointed 2008-03-06 · resigned 2012-09-30
Resigned
VIAN, Paul Thomas→
director · ~55y · appointed 2010-10-14 · resigned 2015-02-12
Resigned
ABERGAN REED LIMITED→
corporate-nominee-director · appointed 2005-12-07 · resigned 2005-12-07
Resigned

Click a director name to see their full track record across all companies.

Recent filings (94 total)

accounts-with-accounts-type-dormant
accounts · AA
2025-12-22
confirmation-statement-with-updates
confirmation-statement · CS01
2025-12-15
confirmation-statement-with-updates
confirmation-statement · CS01
2024-12-09
change-person-director-company-with-change-date
officers · CH01
2024-12-09
accounts-with-accounts-type-dormant
accounts · AA
2024-12-03
confirmation-statement-with-no-updates
confirmation-statement · CS01
2023-12-08
change-person-director-company-with-change-date
officers · CH01
2023-12-08
cessation-of-a-person-with-significant-control
persons-with-significant-control · PSC07
2023-12-08
notification-of-a-person-with-significant-control
persons-with-significant-control · PSC02
2023-12-08
change-to-a-person-with-significant-control
persons-with-significant-control · PSC04
2023-06-22
accounts-with-accounts-type-micro-entity
accounts · AA
2023-04-26
confirmation-statement-with-no-updates
confirmation-statement · CS01
2022-12-19
accounts-with-accounts-type-total-exemption-full
accounts · AA
2022-11-24
change-registered-office-address-company-with-date-old-address-new-address
address · AD01
2022-09-26
termination-director-company-with-name-termination-date
officers · TM01
2022-05-04