SENTINEL INSTRUMENTS LIMITED
💤Zombieactive
SC199222 · ltd · incorporated 1999-08-25
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 Dec 2024
Net worth
—
book net assets
Opportunity
79/100
Strong
What this business does
Primary activity: SIC 28990
Sector: Manufacturing
Investor take
PursueActive trading company with a 71-year-old founder — textbook succession opportunity.
Opportunity 79/100 (strong), bankability 80/100. Strong seller-intent signal (68/100, director aged 71). Share purchase looks the cleaner deal structure. Biggest value-creation lever: Discharge stale live charges. 2 live charge(s) created 15+ years ago — likely paid but undischarged. Clean register. Most likely exit: share sale to pe / searcher (73/100).
🏦
Refinance opportunity
2 live charges · oldest 21.6y
45/100
under pressure
Refinance would be pressure-driven, not opportunity-driven. Expect tighter margins and covenant scrutiny.
- · Oldest live charge is 21.6 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
2 charges (2/2 with lender, 2/2 with type)
90
Directors & officers
5 officers (2 active, 5 linked, 2 with DOB)
78
Ownership & PSC
1 active PSC(s) of 2 total, 2 with control declared
90
Director network
Network not yet resolved
30
Filing history
67 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
79/100Strong
PassWatchWorth a lookStrongExceptional
Solid opportunity signal. Worth a dedicated memo and management meeting.
Business quality
70
Active, clean filings, stable charge profile.
Acquirability
70
Strong succession / seller-readiness signals.
Risk profile
85
Few red flags.
Signal strength
100
Good data coverage for analysis.
Key financials
2 years extracted from filed iXBRL accountsCash
—
Net Worth
—
Current Assets
—
Current Liabilities
—
Hover to see exact values · click legend to toggle series
Financials
Extracted from Companies House accounts · accounting standard unknown| Metric | 2024-12-31 | 2023-12-31 |
|---|---|---|
| Average employees | 100 | 100 |
Amounts extracted automatically from iXBRL. Fields left blank were not reported or not mapped. Values in GBP unless stated.
🔒Filing-note intelligence
3 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
0
filings
Last 180 days
1
filing
- • 1 accounts
Counts from Companies House filing history.
Corporate timeline (27 events)Click to expand
- 2025-12-18📄accounts-with-accounts-type-total-exemption-fullaccounts · AA
- 2024-11-10📄accounts-with-accounts-type-total-exemption-fullaccounts · AA
- 2024-10-11📄appoint-person-director-company-with-name-dateofficers · AP01
- 2024-10-11📄change-to-a-person-with-significant-controlpersons-with-significant-control · PSC04
- 2024-10-11📄cessation-of-a-person-with-significant-controlpersons-with-significant-control · PSC07
- 2024-10-11📄termination-director-company-with-name-termination-dateofficers · TM01
- 2024-10-01➕GOMEZ, Rosalinda appointeddirector
- 2024-10-01➖GOMEZ, Michael Joseph John resigneddirector
- 2023-12-11📄accounts-with-accounts-type-total-exemption-fullaccounts · AA
- 2022-12-18📄accounts-with-accounts-type-total-exemption-fullaccounts · AA
- 2021-09-19📄accounts-with-accounts-type-total-exemption-fullaccounts · AA
- 2020-12-28📄accounts-with-accounts-type-total-exemption-fullaccounts · AA
- 2019-09-04📄accounts-with-accounts-type-total-exemption-fullaccounts · AA
- 2018-11-30📄accounts-with-accounts-type-total-exemption-fullaccounts · AA
- 2018-09-08📍change-registered-office-address-company-with-date-old-address-new-addressaddress · AD01
- 2018-08-30📄change-to-a-person-with-significant-controlpersons-with-significant-control · PSC04
- 2018-08-30📄change-to-a-person-with-significant-controlpersons-with-significant-control · PSC04
- 2017-12-04📄accounts-with-accounts-type-total-exemption-fullaccounts · AA
- 2004-11-05🔒Charge registered #2Lender: Lloyds Tsb Scotland PLC
- 2004-10-01🔒Charge registered #1Lender: Lloyds Tsb Scotland PLC
- 1999-08-25🏢Company incorporatedAs SENTINEL INSTRUMENTS LIMITED
- 1999-08-25➕GOMEZ, Rosalinda appointedsecretary
- 1999-08-25➕BRIAN REID LTD. appointedcorporate-nominee-secretary
- 1999-08-25➖BRIAN REID LTD. resignedcorporate-nominee-secretary
- 1999-08-25➕GOMEZ, Michael Joseph John appointeddirector
- 1999-08-25➕STEPHEN MABBOTT LTD. appointedcorporate-nominee-director
- 1999-08-25➖STEPHEN MABBOTT LTD. resignedcorporate-nominee-director
Owner dependency
90/100
Critical — business is the founderThe 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 age: Director aged approximately 71 — succession pressure is live.
Succession & seller-readiness
75/100
Likely off-market candidateStrong acquirability signals converging. Worth approaching directly — this is how off-market deals start.
SIGNALS
- primaryFounder aged 70+: Senior director is approximately 71 years old. Natural succession window is now.
- primarySole active director: Only one director in control. No visible successor — buyers solve the succession problem.
Red flags
cleanNo 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%| Name | Shares | Voting rights | Nature of control | Notified |
|---|---|---|---|---|
Mrs Rosalinda Gomez Individual · British · DOB 09/1955 · age 71 | 75–100% | 75–100% | 75-100% shares · 75-100% voting | 06/04/2016 |
1 historic (ceased) PSC
- Mr Michael Joseph John Gomezceased 01/10/2024· 25-50% shares · 25-50% voting
From Companies House Persons with Significant Control filings. Share ranges are banded per the public PSC regime.
Similar companies
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|---|---|---|---|---|---|---|---|
| S&L WELDING SERVICES LTD→ SC855779 · est 2025 · no financials extracted | — | — | — | — | — | — | — |
| SEB CONSULTANTS LTD→ SC848122 · est 2025 · no financials extracted | — | — | — | — | — | — | — |
| SG TEK LIMITED→ SC873222 · est 2025 · no financials extracted | — | — | — | — | — | — | — |
| SGS GAS ANALYSIS SERVICES SCOTLAND LIMITED→ SC543531 · est 2016 · no financials extracted | — | — | — | — | 9y | — | — |
| SHANNAS ENGINEERING LTD.→ SC222339 · est 2001 · no financials extracted | — | — | — | — | 24y | — | — |
| SHAUN.C.PETRIE LTD→ SC738643 · est 2022 · no financials extracted | — | — | — | — | 3y | — | — |
| SHELF DRILLING (UK), LTD.→ SC737327 · est 2022 · no financials extracted | — | — | — | — | 3y | — | — |
| SILVER THREADS ABERDEEN LTD→ SC696938 · est 2021 · no financials extracted | — | — | — | — | 4y | — | — |
| SIMPLESCIENCESUPPLIES LTD→ SC748824 · est 2022 · no financials extracted | — | — | — | — | 3y | — | — |
| SJF DRILLING CONSULTANTS LTD→ SC739447 · est 2022 · no financials extracted | — | — | — | — | 3y | — | — |
| SKENE CRANE REPAIRS LTD.→ SC412520 · est 2011 · no financials extracted | — | — | — | — | 14y | — | — |
| SKYLEX LIMITED→ SC883026 · est 2026 · no financials extracted | — | — | — | — | — | — | — |
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
Incorporated1999-08-25
Jurisdictionscotland
Primary SIC28990 — SIC 28990
Registered office
Transcona House
2 Caird's Wynd
Banchory
Aberdeenshire
AB31 5XU
Scotland
Filing status
Accounts
Next due: 2026-09-30
Last made up to: 2024-12-31
Confirmation statement
Next due: 2026-09-08
Last: 2025-08-25
Officers (2 active · 3 resigned)
Active
GOMEZ, Rosalinda→
Activedirector · ~71y · appointed 2024-10-01
View their other companies + combined net worth →
BRIAN REID LTD.→
Resignedcorporate-nominee-secretary · appointed 1999-08-25 · resigned 1999-08-25
GOMEZ, Michael Joseph John→
Resigneddirector · ~86y · appointed 1999-08-25 · resigned 2024-10-01
STEPHEN MABBOTT LTD.→
Resignedcorporate-nominee-director · appointed 1999-08-25 · resigned 1999-08-25
Click a director name to see their full track record across all companies.
Mortgages & charges
2
Total charges
2
Outstanding
1
Active lenders
Status:Lender:2 of 2 shown
| Type | Properties | |||||
|---|---|---|---|---|---|---|
| outstanding | Lloyds Banking Group Lloyds Tsb Scotland PLC | Standard security | 1 property | 05/11/2004 | — | |
| outstanding | Lloyds Banking Group Lloyds Tsb Scotland PLC | Bond & floating charge | 1 property | 01/10/2004 | — |
Click column headers to sort. Use filters above to narrow by status and lender.
Recent filings (67 total)
accounts-with-accounts-type-total-exemption-full
accounts · AA
2025-12-18
confirmation-statement-with-no-updates
confirmation-statement · CS01
2025-10-02
accounts-with-accounts-type-total-exemption-full
accounts · AA
2024-11-10
appoint-person-director-company-with-name-date
officers · AP01
2024-10-11
change-to-a-person-with-significant-control
persons-with-significant-control · PSC04
2024-10-11
cessation-of-a-person-with-significant-control
persons-with-significant-control · PSC07
2024-10-11
termination-director-company-with-name-termination-date
officers · TM01
2024-10-11
confirmation-statement-with-updates
confirmation-statement · CS01
2024-09-05
accounts-with-accounts-type-total-exemption-full
accounts · AA
2023-12-11
confirmation-statement-with-no-updates
confirmation-statement · CS01
2023-09-26
accounts-with-accounts-type-total-exemption-full
accounts · AA
2022-12-18
confirmation-statement-with-no-updates
confirmation-statement · CS01
2022-09-28
confirmation-statement-with-no-updates
confirmation-statement · CS01
2021-10-05
accounts-with-accounts-type-total-exemption-full
accounts · AA
2021-09-19
accounts-with-accounts-type-total-exemption-full
accounts · AA
2020-12-28