AIDAN MCMAHON LIMITED

💤Zombieactive
04750679 · ltd · incorporated 2003-05-01
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 May 2025
Net worth
£3.1k
book net assets
Opportunity
80/100
Exceptional
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What this business does
Primary activity: Plumbing, heat and air-conditioning installation
Sector: Construction
Investor take
Pursue
Asset-holding vehicle with a 70-year-old founder — textbook succession opportunity.

Opportunity 80/100 (exceptional), bankability 75/100. Strong seller-intent signal (83/100, director aged 70). Share purchase looks the cleaner deal structure. Biggest value-creation lever: Broaden director team. Sole director creates succession risk and reduces buyer comfort. Appoint a second director or strong #2. Most likely exit: share sale to pe / searcher (73/100).

Data confidence

Overall: medium (76/100)

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
2 years of iXBRL accounts extracted (YoY deltas available) + narrative notes parsed
75
Lenders & charges
Confirmed no charges registered
85
Directors & officers
6 officers (1 active, 6 linked, 2 with DOB)
77
Ownership & PSC
1 active PSC(s) of 1 total, 1 with control declared
90
Director network
Network not yet resolved
30
Filing history
57 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
80/100Exceptional
PassWatchWorth a lookStrongExceptional 

Strong composite across quality, acquirability, and risk. High-priority target — progress to serious diligence.

Business quality
70
Active, clean filings, stable charge profile.
Acquirability
80
Strong succession / seller-readiness signals.
Risk profile
85
Few red flags.
Signal strength
90
Good data coverage for analysis.

Signals from accounts

Derived from iXBRL accounts · FRS 102
Positive net assets
Net assets £3,052
Cash YoY
-17%
Year on year

Key financials

2 years extracted from filed iXBRL accounts
Cash
£869
↓ 17% YoY
Net Worth
£3k
↑ 24% YoY
Current Assets
£869
↓ 17% YoY
Current Liabilities
—
£0£610£1k£2k£2k£3kMay 2024May 2025

Hover to see exact values · click legend to toggle series

Financials

Extracted from Companies House accounts · FRS 102
Metric2025-05-312024-05-31
Total assets£3.1k£2.5k
Current assets£869£1.0k
Cash£869£1.0k
Net assets£3.1k£2.5k

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 confirmation-statement
Last 180 days
1
filing
  • • 1 confirmation-statement
Counts from Companies House filing history.
Corporate timeline (27 events)Click to expand
  1. 2025-12-05
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  2. 2025-02-28
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  3. 2025-02-27
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  4. 2024-02-26
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  5. 2023-02-24
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  6. 2022-02-21
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  7. 2021-02-23
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  8. 2020-10-12
    ➖
    MCMAHON, Mattika resigned
    secretary
  9. 2020-10-12
    ➖
    MCMAHON, Mattika resigned
    director
  10. 2020-10-12
    📄
    termination-secretary-company-with-name-termination-date
    officers · TM02
  11. 2020-10-12
    📄
    termination-director-company-with-name-termination-date
    officers · TM01
  12. 2020-02-26
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  13. 2019-02-25
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  14. 2018-02-26
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  15. 2017-05-19
    📄
    appoint-person-director-company-with-name-date
    officers · AP01
  16. 2017-05-05
    ➕
    MCMAHON, Mattika appointed
    director
  17. 2017-02-28
    📄
    accounts-with-accounts-type-total-exemption-small
    accounts · AA
  18. 2016-05-24
    📄
    annual-return-company-with-made-up-date-full-list-shareholders
    annual-return · AR01
  19. 2007-05-10
    ➕
    MCMAHON, Mattika appointed
    secretary
  20. 2007-05-10
    ➖
    WILLIAMS, Euan John resigned
    secretary
  21. 2003-05-01
    🏢
    Company incorporated
    As AIDAN MCMAHON LIMITED
  22. 2003-05-01
    ➕
    MCMAHON, Aidan appointed
    director
  23. 2003-05-01
    ➕
    WILLIAMS, Euan John appointed
    secretary
  24. 2003-05-01
    ➕
    SWIFT INCORPORATIONS LIMITED appointed
    corporate-nominee-secretary
  25. 2003-05-01
    ➖
    SWIFT INCORPORATIONS LIMITED resigned
    corporate-nominee-secretary
  26. 2003-05-01
    ➕
    INSTANT COMPANIES LIMITED appointed
    corporate-nominee-director
  27. 2003-05-01
    ➖
    INSTANT COMPANIES LIMITED resigned
    corporate-nominee-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.
  • +Founder name in company name: Company name contains director surname "MCMAHON" — strong identity link between founder and business.
  • +Long-tenure founder: Senior director has been in place 23 years — deep operational knowledge concentrated in one person.
  • +Founder age: Director aged approximately 70 — 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 70 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 23 years. Very long tenure is a classic succession signal.
  • secondaryStable-but-static management: Company is 23 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.)

Shareholders & ownership

1 active beneficial owner · dominant holder ≥75%
NameSharesVoting rightsNature of controlNotified
Mr Aidan Mcmahon
Individual · British · DOB 08/1956 · age 70
75–100%
—75-100% shares06/04/2016

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

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

8 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
Incorporated2003-05-01
Jurisdictionengland-wales
Primary SIC43220 — Plumbing, heat and air-conditioning installation

Registered office

3 Stanley Way
Orpington
BR5 2HE
England

Filing status

Accounts
Next due: 2027-02-28
Last made up to: 2025-05-31
Confirmation statement
Next due: 2027-05-15
Last: 2026-05-01

Officers (1 active · 5 resigned)

MCMAHON, Aidan→
director · ~70y · appointed 2003-05-01
View their other companies + combined net worth →
Active
MCMAHON, Mattika→
secretary · appointed 2007-05-10 · resigned 2020-10-12
Resigned
WILLIAMS, Euan John→
secretary · appointed 2003-05-01 · resigned 2007-05-10
Resigned
SWIFT INCORPORATIONS LIMITED→
corporate-nominee-secretary · appointed 2003-05-01 · resigned 2003-05-01
Resigned
MCMAHON, Mattika→
director · ~47y · appointed 2017-05-05 · resigned 2020-10-12
Resigned
INSTANT COMPANIES LIMITED→
corporate-nominee-director · appointed 2003-05-01 · resigned 2003-05-01
Resigned

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

Recent filings (57 total)

confirmation-statement-with-updates
confirmation-statement · CS01
2026-05-12
accounts-with-accounts-type-total-exemption-full
accounts · AA
2025-12-05
confirmation-statement-with-no-updates
confirmation-statement · CS01
2025-06-06
accounts-with-accounts-type-total-exemption-full
accounts · AA
2025-02-28
change-registered-office-address-company-with-date-old-address-new-address
address · AD01
2025-02-27
confirmation-statement-with-no-updates
confirmation-statement · CS01
2024-05-14
accounts-with-accounts-type-micro-entity
accounts · AA
2024-02-26
confirmation-statement-with-no-updates
confirmation-statement · CS01
2023-05-02
accounts-with-accounts-type-micro-entity
accounts · AA
2023-02-24
confirmation-statement-with-no-updates
confirmation-statement · CS01
2022-05-02
accounts-with-accounts-type-micro-entity
accounts · AA
2022-02-21
confirmation-statement-with-no-updates
confirmation-statement · CS01
2021-05-04
accounts-with-accounts-type-micro-entity
accounts · AA
2021-02-23
termination-secretary-company-with-name-termination-date
officers · TM02
2020-10-12
termination-director-company-with-name-termination-date
officers · TM01
2020-10-12