A 1 RADON LIMITED

💤Zombieactive

04022821 · ltd · incorporated 2000-06-28

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 Sept 2024

Net worth

£85.6k

book net assets

Opportunity

75/100

Strong

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What this business does

Primary activity: Other specialised construction activities n.e.c.

Sector: Construction

Investor take

Pursue

Strong opportunity: asset-holding vehicle with strong profile and bankable structure.

Opportunity 75/100 (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 (78/100)

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

Lenders & charges

Confirmed no charges registered

Directors & officers

5 officers (1 active, 5 linked, 2 with DOB)

Ownership & PSC

1 active PSC(s) of 1 total, 1 with control declared

Director network

3 connected companies via shared directors

Filing history

66 filings on record

Gazette notices

No matching gazette notices (standard for active companies)

Opportunity Score

75/100Strong

PassWatchWorth a lookStrongExceptional

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

Business quality

Active, clean filings, stable charge profile.

Acquirability

Some acquirability indicators.

Risk profile

Few red flags.

Signal strength

Good data coverage for analysis.

Signals from accounts

Derived from iXBRL accounts · FRS 105 (micro)

Positive net assets

Net assets £85,582

Key financials

2 years extracted from filed iXBRL accounts

Cash

—

Net Worth

£86k

↑ 12% YoY

Current Assets

£66k

↑ 20% YoY

Current Liabilities

—

Hover to see exact values · click legend to toggle series

Financials

Extracted from Companies House accounts · FRS 105 (micro)

Metric	2024-09-30	2023-09-30
Total assets	£88.8k	£78.5k
Current assets	£66.1k	£55.2k
Net assets	£85.6k	£76.3k

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

filings

Last 90 days

filings

Last 180 days

filings

Counts from Companies House filing history.

Corporate timeline (25 events)Click to expand

2025-09-22
➖
WALKER, Zoe Annabel resigned
secretary
2025-09-22
📄
termination-secretary-company-with-name-termination-date
officers · TM02
2025-06-27
📄
accounts-with-accounts-type-micro-entity
accounts · AA
2024-06-28
📄
accounts-with-accounts-type-micro-entity
accounts · AA
2023-06-30
📄
accounts-with-accounts-type-micro-entity
accounts · AA
2022-06-30
📄
accounts-with-accounts-type-micro-entity
accounts · AA
2021-06-30
📄
accounts-with-accounts-type-micro-entity
accounts · AA
2020-02-10
📄
accounts-with-accounts-type-micro-entity
accounts · AA
2019-10-18
📄
change-account-reference-date-company-previous-extended
accounts · AA01
2019-10-04
📄
termination-director-company-with-name-termination-date
officers · TM01
2019-09-30
➖
TURNER, Darren Robert resigned
director
2018-08-13
📄
resolution
resolution · RESOLUTIONS
2018-08-11
📄
accounts-with-accounts-type-micro-entity
accounts · AA
2018-08-11
📄
appoint-person-director-company-with-name-date
officers · AP01
2018-08-10
➕
TURNER, Darren Robert appointed
director
2018-02-26
📄
accounts-with-accounts-type-micro-entity
accounts · AA
2017-07-06
📄
notification-of-a-person-with-significant-control
persons-with-significant-control · PSC01
2016-11-05
📄
accounts-with-accounts-type-total-exemption-small
accounts · AA
2000-06-30
➕
WALKER, Martin John appointed
director
2000-06-30
➕
WALKER, Zoe Annabel appointed
secretary
2000-06-28
🏢
Company incorporated
As A 1 RADON LIMITED
2000-06-28
➕
FORM 10 SECRETARIES FD LTD appointed
corporate-nominee-secretary
2000-06-28
➖
FORM 10 SECRETARIES FD LTD resigned
corporate-nominee-secretary
2000-06-28
➕
FORM 10 DIRECTORS FD LTD appointed
corporate-nominee-director
2000-06-28
➖
FORM 10 DIRECTORS FD LTD resigned
corporate-nominee-director

Owner dependency

85/100

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 26 years — deep operational knowledge concentrated in one person.

Succession & seller-readiness

75/100

Likely off-market candidate

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

SIGNALS

primarySole active director: Only one director in control. No visible successor — buyers solve the succession problem.
primary20+ year tenure: Director in role 26 years. Very long tenure is a classic succession signal.
secondaryStable-but-static management: Company is 26 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%

Name	Shares	Voting rights	Nature of control	Notified
Mr Martin John Walker Individual · British · DOB 01/1977 · age 49	75–100%	—	75-100% shares	28/06/2016

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 →

Similar companies

Active · Construction · CV postcode area

Company	Est. value	Turnover	Net worth	Staff	Age	Opp	Director
1 NRG LTD→ 14434570 · est 2022 · no financials extracted	—	—	—	—	3y	—	—
123PS LTD→ 13648225 · est 2021 · no financials extracted	—	—	—	—	4y	—	—
16184358 LTD→ 16184358 · est 2025 · no financials extracted	—	—	—	—	1y	—	—
19 WARWICK STREET FREEHOLD LIMITED→ 15514051 · est 2024 · no financials extracted	—	—	—	—	2y	—	—
2 CASTLES PROPERTY SERVICES LTD→ 16056878 · est 2024 · no financials extracted	—	—	—	—	1y	—	—
3-D WYNDOWS LIMITED→ 01253775 · est 1976 · no financials extracted	—	—	—	—	50y	—	—
4 RAIL LIMITED→ 11074021 · est 2017 · no financials extracted	—	—	—	—	8y	—	—
4FIFTY4 LIMITED→ 16578931 · est 2025 · no financials extracted	—	—	—	—	—	—	—
4S BUILDERS LTD→ 15384985 · est 2024 · no financials extracted	—	—	—	—	2y	—	—
7X SERVICES LTD→ 16040246 · est 2024 · no financials extracted	—	—	—	—	1y	—	—
A 2 Z BEST BUILDING WORKS LTD→ 15526263 · est 2024 · no financials extracted	—	—	—	—	2y	—	—
A AND C BUILDING SERVICES ( MIDLANDS ) LIMITED→ 08690214 · est 2013 · no financials extracted	—	—	—	—	12y	—	—

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

Incorporated2000-06-28

Jurisdictionengland-wales

Primary SIC43999 — Other specialised construction activities n.e.c.

Registered office

9 Nuneaton Road

Fillongley

Coventry

CV7 8EZ

Filing status

Accounts

Next due: 2026-06-30

Last made up to: 2024-09-30

Confirmation statement

Next due: 2026-08-25

Last: 2025-08-11

Officers (1 active · 4 resigned)

WALKER, Martin John→

director · ~49y · appointed 2000-06-30

View their other companies + combined net worth →

Active

WALKER, Zoe Annabel→

secretary · appointed 2000-06-30 · resigned 2025-09-22

Resigned

FORM 10 SECRETARIES FD LTD→

corporate-nominee-secretary · appointed 2000-06-28 · resigned 2000-06-28

Resigned

TURNER, Darren Robert→

director · ~42y · appointed 2018-08-10 · resigned 2019-09-30

Resigned

FORM 10 DIRECTORS FD LTD→

corporate-nominee-director · appointed 2000-06-28 · resigned 2000-06-28

Resigned

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

Recent filings (66 total)

confirmation-statement-with-no-updates

confirmation-statement · CS01

2025-09-22

termination-secretary-company-with-name-termination-date

officers · TM02

2025-09-22