MAINSTAY NORTH SEA LIMITED

💤Zombieactive
SC230198 · ltd · incorporated 2002-04-10
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.
Why now
Window steady · low confidence
Steady and stalled — no momentum either way. Needs an approach trigger.
What changed my view
Last 30 days

No material changes in the last 30 days.

Last 90 days

No snapshot from 90 days ago — start tracking from today.

Last 180 days

No snapshot from 180 days ago — start tracking from today.

🔒Estimated value
—
Upgrade to see
Turnover
—
year to Apr 2025
Net worth
£288.5k
book net assets
Opportunity
82/100
Exceptional
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What this business does
Primary activity: SIC 09100
Sector: Mining & quarrying
Investor take
Pursue
Active trading company with a 66-year-old founder — textbook succession opportunity.

Opportunity 82/100 (exceptional), bankability 80/100. Strong seller-intent signal (83/100, director aged 66). Share purchase looks the cleaner deal structure. Biggest value-creation lever: Cash flow review and working-capital discipline. Cash down -46% YoY — forensic review of receivables, stock turns, and creditor days. Most likely exit: share sale to pe / searcher (73/100).

🏦

Refinance opportunity

1 live charge · oldest 17.7y

45/100
under pressure

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

  • · Oldest live charge is 17.7 years old — likely at or near maturity.
  • · Single lender — cleanest path to refinance.
  • · Distress signals active — lender appetite narrows.

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
1 charges (1/1 with lender, 1/1 with type)
90
Directors & officers
3 officers (1 active, 3 linked, 1 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
82/100Exceptional
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
100
Good data coverage for analysis.

Signals from accounts

Derived from iXBRL accounts · FRS 102
Positive net assets
Net assets £288,469
Cash draining
Cash down 46% YoY
Cash YoY
-46%
Year on year

Key financials

2 years extracted from filed iXBRL accounts
Cash
£52k
↓ 46% YoY
Net Worth
£288k
↑ 3.8% YoY
Current Assets
£58k
↓ 42% YoY
Current Liabilities
—
£0£58k£115k£173k£231k£288kApr 2024Apr 2025

Hover to see exact values · click legend to toggle series

Financials

Extracted from Companies House accounts · FRS 102
Metric2025-04-302024-04-30
Total assets£288.6k£278.0k
Current assets£57.8k£100.3k
Cash£51.8k£95.8k
Debtors£6.0k£4.5k
Net assets£288.5k£277.9k

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 (22 events)Click to expand
  1. 2025-08-08
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  2. 2025-01-30
    📄
    accounts-with-accounts-type-unaudited-abridged
    accounts · AA
  3. 2024-01-31
    📄
    accounts-with-accounts-type-unaudited-abridged
    accounts · AA
  4. 2023-01-20
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  5. 2022-01-25
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  6. 2021-02-16
    📄
    accounts-with-accounts-type-unaudited-abridged
    accounts · AA
  7. 2020-01-31
    📄
    accounts-with-accounts-type-unaudited-abridged
    accounts · AA
  8. 2019-01-31
    📄
    accounts-with-accounts-type-unaudited-abridged
    accounts · AA
  9. 2018-01-26
    📄
    accounts-with-accounts-type-unaudited-abridged
    accounts · AA
  10. 2017-01-31
    📄
    accounts-with-accounts-type-total-exemption-small
    accounts · AA
  11. 2016-04-13
    📄
    annual-return-company-with-made-up-date-full-list-shareholders
    annual-return · AR01
  12. 2015-12-28
    📄
    accounts-with-accounts-type-total-exemption-small
    accounts · AA
  13. 2015-04-23
    📄
    annual-return-company-with-made-up-date-full-list-shareholders
    annual-return · AR01
  14. 2014-10-24
    📄
    accounts-with-accounts-type-total-exemption-small
    accounts · AA
  15. 2014-04-23
    📄
    annual-return-company-with-made-up-date-full-list-shareholders
    annual-return · AR01
  16. 2010-09-15
    ➖
    MILLER, Monica Anne resigned
    secretary
  17. 2008-10-01
    🔒
    Charge registered #1
    Lender: Clydesdale Bank PLC
  18. 2002-04-10
    🏢
    Company incorporated
    As MAINSTAY NORTH SEA LIMITED
  19. 2002-04-10
    ➕
    MILLER, Garson Fotheringhame appointed
    director
  20. 2002-04-10
    ➕
    MILLER, Monica Anne appointed
    secretary
  21. 2002-04-10
    ➕
    OSWALDS OF EDINBURGH LIMITED appointed
    corporate-nominee-secretary
  22. 2002-04-10
    ➖
    OSWALDS OF EDINBURGH LIMITED resigned
    corporate-nominee-secretary

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 24 years — deep operational knowledge concentrated in one person.
  • +Founder age: Director aged approximately 66 — succession pressure is live.

Succession & seller-readiness

95/100
Likely off-market candidate

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

SIGNALS
  • primaryFounder aged 63+: Senior director is approximately 66. Approaching typical UK retirement age — succession thinking likely.
  • primarySole active director: Only one director in control. No visible successor — buyers solve the succession problem.
  • primary20+ year tenure: Director in role 24 years. Very long tenure is a classic succession signal.
  • secondaryStable-but-static management: Company is 24 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 Garson Fotheringhame Miller
Individual · British · DOB 01/1960 · age 66
75–100%
75–100%75-100% shares · 75-100% voting11/04/2016

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
Incorporated2002-04-10
Jurisdictionscotland
Primary SIC09100 — SIC 09100

Registered office

1 - 3 East Road
Kirkwall
Orkney
KW15 1HZ

Filing status

Accounts
Next due: 2027-01-31
Last made up to: 2025-04-30
Confirmation statement
Next due: 2027-04-24
Last: 2026-04-10

Officers (1 active · 2 resigned)

MILLER, Garson Fotheringhame→
director · ~66y · appointed 2002-04-10
View their other companies + combined net worth →
Active
MILLER, Monica Anne→
secretary · appointed 2002-04-10 · resigned 2010-09-15
Resigned
OSWALDS OF EDINBURGH LIMITED→
corporate-nominee-secretary · appointed 2002-04-10 · resigned 2002-04-10
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
Virgin Money
Clydesdale Bank PLC
Standard security1 property01/10/2008—
Click column headers to sort. Use filters above to narrow by status and lender.

Recent filings (57 total)

confirmation-statement-with-updates
confirmation-statement · CS01
2026-04-13
accounts-with-accounts-type-total-exemption-full
accounts · AA
2025-08-08
confirmation-statement-with-no-updates
confirmation-statement · CS01
2025-04-24
accounts-with-accounts-type-unaudited-abridged
accounts · AA
2025-01-30
confirmation-statement-with-no-updates
confirmation-statement · CS01
2024-05-15
accounts-with-accounts-type-unaudited-abridged
accounts · AA
2024-01-31
confirmation-statement-with-updates
confirmation-statement · CS01
2023-04-19
accounts-with-accounts-type-total-exemption-full
accounts · AA
2023-01-20
confirmation-statement-with-no-updates
confirmation-statement · CS01
2022-04-12
accounts-with-accounts-type-total-exemption-full
accounts · AA
2022-01-25
confirmation-statement-with-no-updates
confirmation-statement · CS01
2021-04-14
accounts-with-accounts-type-unaudited-abridged
accounts · AA
2021-02-16
confirmation-statement-with-no-updates
confirmation-statement · CS01
2020-04-13
accounts-with-accounts-type-unaudited-abridged
accounts · AA
2020-01-31
confirmation-statement-with-no-updates
confirmation-statement · CS01
2019-04-11