AIRMARK SYSTEMS LIMITED

🌳Matureactive
02591971 · ltd · incorporated 1991-03-15
Investment thesis
Established operating company — standard diligence applies, no dominant angle.
Why interesting: Live, filing, normal profile.
Why risky: No standout signals in either direction.
Opportunity decay
approaching window · 12-months
Approaching a transaction window — refinance or sale event plausible in the next 12 months.
  • · Oldest live charge 23.7y old — refinance window within 12 months
🔒Estimated value
—
Upgrade to see
Turnover
—
year to Mar 2025
Net worth
£-348.3k
book net assets
Opportunity
75/100
Strong
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What this business does
Primary activity: SIC 22190
Sector: Manufacturing
ALSO REGISTERED FOR
  • 24100SIC 24100
Investor take
Pass (distressed without resilience)
Distressed active trading company — structural issues outweigh the discount.

Opportunity 75/100 (strong), bankability 80/100. High owner-dependency — earn-out structure likely required for clean transition. Share purchase looks the cleaner deal structure. Biggest value-creation lever: Discharge stale live charges. 1 live charge(s) created 15+ years ago — likely paid but undischarged. Clean register. Most likely exit: distressed disposal / insolvency (65/100).

🏦

Refinance opportunity

1 live charge · oldest 23.7y

65/100
clean up first

Refinance viable after a tidy-up — address the highlighted items first.

  • · Oldest live charge is 23.7 years old — likely at or near maturity.
  • · Single lender — cleanest path to refinance.
  • · Legal-friction score 25/100 — workable, but lender will want more DD.

Data confidence

Overall: medium (79/100)

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

Company profile
address, 2 SIC codes, incorporation date
100
Financials
2 years of iXBRL accounts extracted (YoY deltas available) + narrative notes parsed
75
Lenders & charges
1 charges (1/1 with lender, 1/1 with type)
90
Directors & officers
10 officers (3 active, 10 linked, 5 with DOB)
80
Ownership & PSC
1 active PSC(s) of 2 total, 2 with control declared
90
Director network
1 connected companies via shared directors
48
Filing history
87 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
75/100Strong
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
100
Good data coverage for analysis.

Signals from accounts

Derived from iXBRL accounts · accounting standard not declared
Negative net assets
Liabilities exceed assets by £348,272

Key financials

2 years extracted from filed iXBRL accounts
Cash
—
Net Worth
-£348k
↓ 11% YoY
Current Assets
£72k
↑ 63% YoY
Current Liabilities
—
-£348k-£264k-£180k-£96k-£12k£72kMar 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£-348.3k£-312.9k
Current assets£72.2k£44.4k
Debtors£39.4k£18.5k
Net assets£-348.3k£-312.9k

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

🔒Filing-note intelligence

2 signals 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
2
filings
  • • 1 confirmation-statement
  • • 1 accounts
Counts from Companies House filing history.
Corporate timeline (34 events)Click to expand
  1. 2025-12-17
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  2. 2024-06-25
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  3. 2023-11-15
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  4. 2023-03-03
    📄
    notification-of-a-person-with-significant-control
    persons-with-significant-control · PSC01
  5. 2023-03-03
    📄
    cessation-of-a-person-with-significant-control
    persons-with-significant-control · PSC07
  6. 2022-12-22
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  7. 2021-11-24
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  8. 2020-12-16
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  9. 2019-12-10
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  10. 2018-10-26
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  11. 2017-09-30
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  12. 2016-11-17
    📄
    accounts-with-accounts-type-total-exemption-small
    accounts · AA
  13. 2016-03-30
    📄
    annual-return-company-with-made-up-date-full-list-shareholders
    annual-return · AR01
  14. 2015-11-25
    📄
    accounts-with-accounts-type-total-exemption-small
    accounts · AA
  15. 2015-03-24
    📄
    annual-return-company-with-made-up-date-full-list-shareholders
    annual-return · AR01
  16. 2013-04-01
    ➕
    COLEBROOK, Oonagh Marie appointed
    director
  17. 2012-04-27
    ➕
    COLEBROOK, John James appointed
    director
  18. 2012-04-27
    ➖
    COLEBROOK, David Arthur resigned
    director
  19. 2002-09-16
    🔒
    Charge registered #1
    Lender: National Westminster Bank PLC
  20. 1995-12-01
    ➕
    COLEBROOK, Ann Irene appointed
    secretary
  21. 1995-12-01
    ➖
    WIDDOWSON, Ronald William resigned
    director
  22. 1995-11-30
    ➖
    COLEBROOK, David Arthur resigned
    secretary
  23. 1992-01-21
    ➕
    COLEBROOK, David Arthur appointed
    secretary
  24. 1992-01-21
    ➕
    COLEBROOK, David Arthur appointed
    director
  25. 1992-01-21
    ➖
    TASKER, Mark Edward resigned
    director
  26. 1992-01-21
    ➕
    WIDDOWSON, Ronald William appointed
    director
  27. 1991-05-14
    ➖
    TASKER, Leonard Edward resigned
    secretary
  28. 1991-03-19
    ➕
    TASKER, Leonard Edward appointed
    secretary
  29. 1991-03-19
    ➖
    SECRETARIES BY DESIGN LIMITED resigned
    corporate-nominee-secretary
  30. 1991-03-19
    ➕
    TASKER, Mark Edward appointed
    director
  31. 1991-03-19
    ➖
    NOMINEES BY DESIGN LIMITED resigned
    corporate-nominee-director
  32. 1991-03-15
    🏢
    Company incorporated
    As AIRMARK SYSTEMS LIMITED
  33. 1991-03-15
    ➕
    SECRETARIES BY DESIGN LIMITED appointed
    corporate-nominee-secretary
  34. 1991-03-15
    ➕
    NOMINEES BY DESIGN LIMITED appointed
    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

59/100
Strong succession signal

Multiple signals suggest succession is on the horizon. Candidate for proactive outreach.

SIGNALS
  • secondaryTwo-director governance: Small-team governance. Succession depth is thin but not absent.
  • secondary12+ year tenure: Director in role 14 years.
  • secondaryStable-but-static management: Company is 35 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 John James Colebrook
Individual · British · DOB 05/1971 · age 55
75–100%
—75-100% shares03/03/2023
1 historic (ceased) PSC
  • Mr John James Colebrookceased 03/03/2023· 75-100% 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
Incorporated1991-03-15
Jurisdictionengland-wales
Primary SIC22190 — SIC 22190

Registered office

Adams Close
Heanor Gate Industrial Estate
Heanor
Derbyshire
DE75 7SW

Filing status

Accounts
Next due: 2026-12-31
Last made up to: 2025-03-31
Confirmation statement
Next due: 2027-03-31
Last: 2026-03-17

Officers (3 active · 7 resigned)

COLEBROOK, Ann Irene→
secretary · appointed 1995-12-01
View their other companies + combined net worth →
Active
COLEBROOK, John James→
director · ~55y · appointed 2012-04-27
View their other companies + combined net worth →
Active
COLEBROOK, Oonagh Marie→
director · ~42y · appointed 2013-04-01
View their other companies + combined net worth →
Active
COLEBROOK, David Arthur→
secretary · appointed 1992-01-21 · resigned 1995-11-30
Resigned
TASKER, Leonard Edward→
secretary · appointed 1991-03-19 · resigned 1991-05-14
Resigned
SECRETARIES BY DESIGN LIMITED→
corporate-nominee-secretary · appointed 1991-03-15 · resigned 1991-03-19
Resigned
COLEBROOK, David Arthur→
director · ~85y · appointed 1992-01-21 · resigned 2012-04-27
Resigned
TASKER, Mark Edward→
director · ~65y · appointed 1991-03-19 · resigned 1992-01-21
Resigned
WIDDOWSON, Ronald William→
director · ~99y · appointed 1992-01-21 · resigned 1995-12-01
Resigned
NOMINEES BY DESIGN LIMITED→
corporate-nominee-director · appointed 1991-03-15 · resigned 1991-03-19
Resigned

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

Mortgages & charges

1
Total charges
1
Outstanding
1
Active lenders
Status:Lender:1 of 1 shown
TypeProperties
outstanding
National Westminster Bank
National Westminster Bank PLC
Debenture1 property16/09/2002—
Click column headers to sort. Use filters above to narrow by status and lender.

Recent filings (87 total)

confirmation-statement-with-no-updates
confirmation-statement · CS01
2026-03-24
accounts-with-accounts-type-total-exemption-full
accounts · AA
2025-12-17
confirmation-statement-with-no-updates
confirmation-statement · CS01
2025-03-21
accounts-with-accounts-type-total-exemption-full
accounts · AA
2024-06-25
confirmation-statement-with-no-updates
confirmation-statement · CS01
2024-03-21
accounts-with-accounts-type-total-exemption-full
accounts · AA
2023-11-15
confirmation-statement-with-no-updates
confirmation-statement · CS01
2023-03-17
notification-of-a-person-with-significant-control
persons-with-significant-control · PSC01
2023-03-03
cessation-of-a-person-with-significant-control
persons-with-significant-control · PSC07
2023-03-03
accounts-with-accounts-type-total-exemption-full
accounts · AA
2022-12-22
confirmation-statement-with-updates
confirmation-statement · CS01
2022-03-07
accounts-with-accounts-type-total-exemption-full
accounts · AA
2021-11-24
confirmation-statement-with-no-updates
confirmation-statement · CS01
2021-03-05
accounts-with-accounts-type-total-exemption-full
accounts · AA
2020-12-16
confirmation-statement-with-no-updates
confirmation-statement · CS01
2020-03-05