SUBMAR LIMITED

🌳Matureactive
SC302663 · ltd · incorporated 2006-05-19
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 May 2025
Net worth
—
book net assets
Opportunity
81/100
Exceptional
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What this business does
Primary activity: SIC 09100
Sector: Mining & quarrying
Investor take
Pursue
Strong opportunity: active trading company with exceptional profile and bankable structure.

Opportunity 81/100 (exceptional), bankability 75/100. Strong seller-intent signal (70/100, director aged 58). Share purchase looks the cleaner deal structure. Most likely exit: share sale to pe / searcher (65/100).

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
4 officers (3 active, 4 linked, 2 with DOB)
80
Ownership & PSC
2 active PSC(s) of 2 total, 2 with control declared
90
Director network
Network not yet resolved
30
Filing history
50 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
81/100Exceptional
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
85
Strong succession / seller-readiness signals.
Risk profile
85
Few red flags.
Signal strength
90
Good data coverage for analysis.

Key financials

2 years extracted from filed iXBRL accounts
Cash
—
Net Worth
—
Current Assets
—
Current Liabilities
—
£0£0£0£0£0£0May 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
Average employees200200

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 confirmation-statement
Counts from Companies House filing history.
Corporate timeline (21 events)Click to expand
  1. 2026-02-20
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  2. 2025-02-26
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  3. 2024-02-28
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  4. 2023-02-28
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  5. 2022-05-12
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  6. 2021-01-06
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  7. 2020-02-28
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  8. 2019-02-28
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  9. 2018-05-14
    ➕
    GATTI, Mandy appointed
    director
  10. 2018-05-14
    📄
    appoint-person-director-company-with-name-date
    officers · AP01
  11. 2017-10-09
    📄
    change-person-director-company-with-change-date
    officers · CH01
  12. 2017-10-09
    📄
    change-person-secretary-company-with-change-date
    officers · CH03
  13. 2017-10-09
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  14. 2017-09-11
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  15. 2017-01-17
    📄
    accounts-with-accounts-type-total-exemption-small
    accounts · AA
  16. 2017-01-16
    ➕
    GATTI, Mandy appointed
    secretary
  17. 2017-01-16
    ➖
    STEWART, Kenneth Campbell resigned
    secretary
  18. 2017-01-16
    📄
    appoint-person-secretary-company-with-name-date
    officers · AP03
  19. 2006-05-19
    🏢
    Company incorporated
    As SUBMAR LIMITED
  20. 2006-05-19
    ➕
    STEWART, John Campbell appointed
    director
  21. 2006-05-19
    ➕
    STEWART, Kenneth Campbell appointed
    secretary

Owner dependency

76/100
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.
  • +Long-tenure founder: Senior director has been in place 20 years — deep operational knowledge concentrated in one person.
  • +Senior director age: Director aged approximately 58 — approaching natural succession window.

Succession & seller-readiness

69/100
Strong succession signal

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

SIGNALS
  • secondaryFounder aged 58+: Senior director is approximately 58. Early succession window.
  • secondaryTwo-director governance: Small-team governance. Succession depth is thin but not absent.
  • secondary12+ year tenure: Director in role 20 years.
  • 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.)

Shareholders & ownership

2 active beneficial owners
NameSharesVoting rightsNature of controlNotified
Mt John Campbell Stewart
Individual · British · DOB 05/1968 · age 58
25–50%
—25-50% shares01/06/2016
Ms Mandy Gatti
Individual · British · DOB 03/1969 · age 57
25–50%
—25-50% shares01/06/2016

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

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
Incorporated2006-05-19
Jurisdictionscotland
Primary SIC09100 — SIC 09100

Registered office

16 Springfield Crescent
Armadale
Bathgate
EH48 3GF
Scotland

Filing status

Accounts
Next due: 2027-02-28
Last made up to: 2025-05-31
Confirmation statement
Next due: 2027-01-16
Last: 2026-01-02

Officers (3 active · 1 resigned)

GATTI, Mandy→
secretary · appointed 2017-01-16
View their other companies + combined net worth →
Active
GATTI, Mandy→
director · ~57y · appointed 2018-05-14
View their other companies + combined net worth →
Active
STEWART, John Campbell→
director · ~58y · appointed 2006-05-19
View their other companies + combined net worth →
Active
STEWART, Kenneth Campbell→
secretary · appointed 2006-05-19 · resigned 2017-01-16
Resigned

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

Recent filings (50 total)

accounts-with-accounts-type-micro-entity
accounts · AA
2026-02-20
confirmation-statement-with-no-updates
confirmation-statement · CS01
2026-01-15
accounts-with-accounts-type-micro-entity
accounts · AA
2025-02-26
confirmation-statement-with-no-updates
confirmation-statement · CS01
2025-02-14
accounts-with-accounts-type-micro-entity
accounts · AA
2024-02-28
confirmation-statement-with-updates
confirmation-statement · CS01
2024-02-09
accounts-with-accounts-type-micro-entity
accounts · AA
2023-02-28
confirmation-statement-with-no-updates
confirmation-statement · CS01
2023-02-06
accounts-with-accounts-type-total-exemption-full
accounts · AA
2022-05-12
confirmation-statement-with-no-updates
confirmation-statement · CS01
2022-02-03
confirmation-statement-with-no-updates
confirmation-statement · CS01
2021-03-23
accounts-with-accounts-type-total-exemption-full
accounts · AA
2021-01-06
accounts-with-accounts-type-total-exemption-full
accounts · AA
2020-02-28
confirmation-statement-with-no-updates
confirmation-statement · CS01
2020-02-05
confirmation-statement-with-no-updates
confirmation-statement · CS01
2019-05-29