G12 LIMITED

💤Zombieactive
SC118163 · ltd · incorporated 1989-05-25
Investment thesis
Zombie company — trading but stalled; unlikely mover.
Why interesting: Quiet, steady; could be a succession or carve-out candidate with the right conversation.
Why risky: No growth signal; thin margin for error on price.
🔒Estimated value
—
Upgrade to see
Turnover
—
year to Mar 2025
Net worth
£-212
book net assets
Opportunity
78/100
Strong
🔔
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What this business does
Primary activity: Development of building projects
Sector: Construction
Investor take
Pass (distressed without resilience)
Distressed active trading company — structural issues outweigh the discount.

Opportunity 78/100 (strong), bankability 70/100. Strong seller-intent signal (83/100, director aged 87). Share purchase looks the cleaner deal structure. Biggest value-creation lever: Discharge stale live charges. 5 live charge(s) created 15+ years ago — likely paid but undischarged. Clean register. Most likely exit: share sale to pe / searcher (73/100).

🏦

Refinance opportunity

5 live charges · oldest 36.8y

45/100
under pressure

Refinance would be pressure-driven, not opportunity-driven. Expect tighter margins and covenant scrutiny.

  • · Oldest live charge is 36.8 years old — likely at or near maturity.
  • · Single lender — cleanest path to refinance.
  • · Distress signals active — lender appetite narrows.

Data confidence

Overall: high (80/100)

Strong data coverage across all sections. AI outputs should be trusted with minimal caveats.

Company profile
address, 1 SIC codes, incorporation date
100
Financials
2 years of iXBRL accounts extracted (YoY deltas available) + narrative notes parsed
75
Lenders & charges
5 charges (5/5 with lender, 5/5 with type)
90
Directors & officers
12 officers (2 active, 12 linked, 7 with DOB)
82
Ownership & PSC
1 active PSC(s) of 1 total, 1 with control declared
90
Director network
6 connected companies via shared directors
63
Filing history
109 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
78/100Strong
PassWatchWorth a lookStrongExceptional 

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

Business quality
60
Adequate — check latest filings for context.
Acquirability
80
Strong succession / seller-readiness signals.
Risk profile
82
Few red flags.
Signal strength
100
Good data coverage for analysis.

Signals from accounts

Derived from iXBRL accounts · accounting standard not declared
Negative net assets
Liabilities exceed assets by £212

Key financials

2 years extracted from filed iXBRL accounts
Cash
—
Net Worth
-£212
~ YoY
Current Assets
—
Current Liabilities
—
-£212-£212-£212-£212-£212-£212Mar 2024Mar 2025

Hover to see exact values · click legend to toggle series

Financials

Extracted from Companies House accounts · accounting standard unknown
Metric2025-03-312024-03-31
Total assets£-212£-212
Net assets£-212£-212

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
1
filing
  • • 1 accounts
Last 180 days
2
filings
  • • 1 accounts
  • • 1 address
Counts from Companies House filing history.
Corporate timeline (41 events)Click to expand
  1. 2026-03-26
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  2. 2025-12-02
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  3. 2024-12-18
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  4. 2024-02-14
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  5. 2023-02-02
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  6. 2021-10-06
    📄
    accounts-with-accounts-type-dormant
    accounts · AA
  7. 2021-02-25
    📄
    accounts-with-accounts-type-dormant
    accounts · AA
  8. 2019-12-27
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  9. 2018-09-03
    📄
    accounts-with-accounts-type-dormant
    accounts · AA
  10. 2018-02-02
    📄
    notification-of-a-person-with-significant-control
    persons-with-significant-control · PSC01
  11. 2018-01-05
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  12. 2017-01-05
    📄
    accounts-with-accounts-type-dormant
    accounts · AA
  13. 2016-05-31
    📄
    annual-return-company-with-made-up-date-full-list-shareholders
    annual-return · AR01
  14. 2015-12-24
    📄
    accounts-with-accounts-type-dormant
    accounts · AA
  15. 2015-06-08
    📄
    annual-return-company-with-made-up-date-full-list-shareholders
    annual-return · AR01
  16. 2015-01-05
    📄
    accounts-with-accounts-type-dormant
    accounts · AA
  17. 2010-01-01
    ➕
    MAHON, Siobhan Barbara appointed
    secretary
  18. 2010-01-01
    ➖
    DOCHERTY, Linda resigned
    secretary
  19. 2000-07-04
    ➖
    SMITH, Gordon Alan Menzies resigned
    director
  20. 2000-07-03
    ➕
    DOCHERTY, Linda appointed
    secretary
  21. 2000-07-03
    ➖
    MAHON, Owen Anthony resigned
    secretary
  22. 2000-07-03
    ➖
    STEWART, Joseph Brian resigned
    director
  23. 1998-09-08
    🔒
    Charge registered #5
    Lender: The Governor and Company of the Bank of Scotland
  24. 1998-06-18
    🔒
    Charge registered #4
    Lender: The Governor and Company of the Bank of Scotland
  25. 1996-04-25
    🔒
    Charge registered #3
    Lender: The Governor and Company of the Bank of Scotland
  26. 1994-07-14
    ➕
    MAHON, Owen Anthony appointed
    director
  27. 1994-07-14
    ➖
    BOYCE, David James resigned
    secretary
  28. 1994-07-14
    ➕
    MAHON, Owen Anthony appointed
    secretary
  29. 1994-07-14
    ➖
    BOYCE, David James resigned
    director
  30. 1994-07-14
    ➖
    MCGREGOR, Ian Scott resigned
    director
  31. 1994-07-14
    ➕
    SMITH, Gordon Alan Menzies appointed
    director
  32. 1994-07-14
    ➕
    STEWART, Joseph Brian appointed
    director
  33. 1991-05-25
    ➖
    GALL, Robert Cran resigned
    secretary
  34. 1991-05-25
    ➖
    GALL, Robert Cran resigned
    director
  35. 1991-05-25
    ➖
    RANKINE, Neil Bromham resigned
    director
  36. 1989-08-23
    🔒
    Charge registered #2
    Lender: The Governor and Company of the Bank of Scotland
  37. 1989-07-25
    🔒
    Charge registered #1
    Lender: The Governor and Company of the Bank of Scotland
  38. 1989-05-25
    🏢
    Company incorporated
    As G12 LIMITED
  39. 1989-05-25
    ➕
    GALL, Robert Cran appointed
    secretary
  40. 1989-05-25
    ➕
    GALL, Robert Cran appointed
    director
  41. 1989-05-25
    ➕
    RANKINE, Neil Bromham appointed
    director

Owner dependency

100/100
Critical — business is the founder

The business appears inseparable from the founder. Acquisition without a serious earn-out or meaningful transition period would likely destroy value.

FACTORS
  • +Sole director: Only one active director — all governance concentrated on one person.
  • +Long-tenure founder: Senior director has been in place 32 years — deep operational knowledge concentrated in one person.
  • +Founder age: Director aged approximately 87 — succession pressure is live.

Succession & seller-readiness

100/100
Likely off-market candidate

Strong acquirability signals converging. Worth approaching directly — this is how off-market deals start.

SIGNALS
  • primaryFounder aged 70+: Senior director is approximately 87 years old. Natural succession window is now.
  • primarySole active director: Only one director in control. No visible successor — buyers solve the succession problem.
  • primary20+ year tenure: Director in role 32 years. Very long tenure is a classic succession signal.
  • secondaryStable-but-static management: Company is 37 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

1 low
5 live charges
low

Heavily leveraged with multiple live security positions — understand the capital structure before proceeding.

Shareholders & ownership

1 active beneficial owner · dominant holder ≥75%
NameSharesVoting rightsNature of controlNotified
Mr Owen Anthony Mahon
Individual · British · DOB 01/1939 · age 87
75–100%
—75-100% shares06/04/2016

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

9 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
Incorporated1989-05-25
Jurisdictionscotland
Primary SIC41100 — Development of building projects

Registered office

86 Newark Street
Greenock
PA16 7TF
Scotland

Filing status

Accounts
Next due: 2026-12-31
Last made up to: 2025-03-31
Confirmation statement
Next due: 2026-06-08
Last: 2025-05-25

Officers (2 active · 10 resigned)

MAHON, Siobhan Barbara→
secretary · appointed 2010-01-01
View their other companies + combined net worth →
Active
MAHON, Owen Anthony→
director · ~87y · appointed 1994-07-14
View their other companies + combined net worth →
Active
BOYCE, David James→
secretary · resigned 1994-07-14
Resigned
DOCHERTY, Linda→
secretary · appointed 2000-07-03 · resigned 2010-01-01
Resigned
GALL, Robert Cran→
secretary · appointed 1989-05-25 · resigned 1991-05-25
Resigned
MAHON, Owen Anthony→
secretary · appointed 1994-07-14 · resigned 2000-07-03
Resigned
BOYCE, David James→
director · ~80y · resigned 1994-07-14
Resigned
GALL, Robert Cran→
director · ~69y · appointed 1989-05-25 · resigned 1991-05-25
Resigned
MCGREGOR, Ian Scott→
director · ~64y · resigned 1994-07-14
Resigned
RANKINE, Neil Bromham→
director · ~71y · appointed 1989-05-25 · resigned 1991-05-25
Resigned
SMITH, Gordon Alan Menzies→
director · ~79y · appointed 1994-07-14 · resigned 2000-07-04
Resigned
STEWART, Joseph Brian→
director · ~75y · appointed 1994-07-14 · resigned 2000-07-03
Resigned

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

Mortgages & charges

5
Total charges
5
Outstanding
1
Active lenders
Status:Lender:5 of 5 shown
TypeProperties
outstanding
Lloyds Banking Group
The Governor and Company of the Bank of Scotland
Standard security1 property08/09/1998—
outstanding
Lloyds Banking Group
The Governor and Company of the Bank of Scotland
Standard security1 property18/06/1998—
outstanding
Lloyds Banking Group
The Governor and Company of the Bank of Scotland
Standard security1 property25/04/1996—
outstanding
Lloyds Banking Group
The Governor and Company of the Bank of Scotland
Standard security2 properties23/08/1989—
outstanding
Lloyds Banking Group
The Governor and Company of the Bank of Scotland
Bond & floating charge1 property25/07/1989—
Click column headers to sort. Use filters above to narrow by status and lender.

Recent filings (109 total)

accounts-with-accounts-type-total-exemption-full
accounts · AA
2026-03-26
change-registered-office-address-company-with-date-old-address-new-address
address · AD01
2025-12-02
confirmation-statement-with-no-updates
confirmation-statement · CS01
2025-06-05
accounts-with-accounts-type-total-exemption-full
accounts · AA
2024-12-18
confirmation-statement-with-no-updates
confirmation-statement · CS01
2024-05-30
accounts-with-accounts-type-total-exemption-full
accounts · AA
2024-02-14
confirmation-statement-with-no-updates
confirmation-statement · CS01
2023-06-08
accounts-with-accounts-type-total-exemption-full
accounts · AA
2023-02-02
confirmation-statement-with-no-updates
confirmation-statement · CS01
2022-06-06
accounts-with-accounts-type-dormant
accounts · AA
2021-10-06
confirmation-statement-with-no-updates
confirmation-statement · CS01
2021-08-02
accounts-with-accounts-type-dormant
accounts · AA
2021-02-25
confirmation-statement-with-no-updates
confirmation-statement · CS01
2020-06-16
accounts-with-accounts-type-total-exemption-full
accounts · AA
2019-12-27
confirmation-statement-with-no-updates
confirmation-statement · CS01
2019-06-09