DUPPLIN ENGINEERING LTD

💤Zombieactive
SC526635 · ltd · incorporated 2016-02-11
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 Feb 2025
Net worth
book net assets
Opportunity
73/100
Strong
🔔
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What this business does
Primary activity: SIC 09100
Sector: Mining & quarrying
ALSO REGISTERED FOR
  • 71129Other engineering activities
Investor take
Pursue
Strong opportunity: active trading company with strong profile and bankable structure.

Opportunity 73/100 (strong), bankability 75/100. High owner-dependency — earn-out structure likely required for clean transition. 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 (58/100).

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
Confirmed no charges registered
85
Directors & officers
1 officers (1 active, 1 linked, 1 with DOB)
90
Ownership & PSC
1 active PSC(s) of 1 total, 1 with control declared
90
Director network
1 connected companies via shared directors
48
Filing history
21 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
73/100Strong
PassWatchWorth a lookStrongExceptional 

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

Business quality
70
Active, clean filings, stable charge profile.
Acquirability
50
Some acquirability indicators.
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£0Feb 2024Feb 2025

Hover to see exact values · click legend to toggle series

Financials

Extracted from Companies House accounts · IFRS
Metric2025-02-282024-02-29
Average employees300300

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
1
filing
  • 1 confirmation-statement
Counts from Companies House filing history.
Corporate timeline (13 events)Click to expand
  1. 2025-05-28
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  2. 2024-08-06
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  3. 2023-08-04
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  4. 2022-08-25
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  5. 2021-05-01
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  6. 2020-06-15
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  7. 2019-07-02
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  8. 2018-05-24
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  9. 2017-07-06
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  10. 2016-12-21
    📄
    change-person-director-company-with-change-date
    officers · CH01
  11. 2016-02-11
    🏢
    Company incorporated
    As DUPPLIN ENGINEERING LTD
  12. 2016-02-11
    BLACKHALL, Jeffrey Allan appointed
    director
  13. 2016-02-11
    📄
    incorporation-company
    incorporation · NEWINC

Owner dependency

80/100
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.
  • +No director turnover: Company is 10 years old with no director changes — suggests a very tight-knit founder team never broadened.

Succession & seller-readiness

50/100
Moderate signal

Some succession indicators present. Worth watching; approach if sector/strategy fits.

SIGNALS
  • primarySole active director: Only one director in control. No visible successor — buyers solve the succession problem.
  • 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 Jeffrey Allan Blackhall
Individual · British · DOB 06/1969 · age 57
75100%
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

7 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
Incorporated2016-02-11
Jurisdictionscotland
Primary SIC09100 — SIC 09100

Registered office

6 Rosemount Place
Perth
PH2 7EH
United Kingdom

Filing status

Accounts
Next due: 2026-11-30
Last made up to: 2025-02-28
Confirmation statement
Next due: 2027-02-25
Last: 2026-02-11

Officers (1 active · 0 resigned)

BLACKHALL, Jeffrey Allan
director · ~57y · appointed 2016-02-11
View their other companies + combined net worth →
Active

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

Recent filings (21 total)

confirmation-statement-with-updates
confirmation-statement · CS01
2026-02-20
accounts-with-accounts-type-total-exemption-full
accounts · AA
2025-05-28
confirmation-statement-with-updates
confirmation-statement · CS01
2025-02-14
accounts-with-accounts-type-total-exemption-full
accounts · AA
2024-08-06
confirmation-statement-with-updates
confirmation-statement · CS01
2024-02-15
accounts-with-accounts-type-total-exemption-full
accounts · AA
2023-08-04
confirmation-statement-with-updates
confirmation-statement · CS01
2023-02-16
accounts-with-accounts-type-total-exemption-full
accounts · AA
2022-08-25
confirmation-statement-with-updates
confirmation-statement · CS01
2022-02-15
accounts-with-accounts-type-total-exemption-full
accounts · AA
2021-05-01
confirmation-statement-with-updates
confirmation-statement · CS01
2021-02-17
accounts-with-accounts-type-total-exemption-full
accounts · AA
2020-06-15
confirmation-statement-with-updates
confirmation-statement · CS01
2020-02-25
accounts-with-accounts-type-total-exemption-full
accounts · AA
2019-07-02
confirmation-statement-with-updates
confirmation-statement · CS01
2019-02-19