ADVANCED DIAMONDX LTD

💤Zombieactive
11142203 · ltd · incorporated 2018-01-10
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.
🔒Estimated value
—
Upgrade to see
Turnover
—
year to Mar 2025
Net worth
£26.0k
book net assets
Opportunity
72/100
Strong
🔔
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What this business does
Primary activity: Other manufacturing n.e.c.
Sector: Manufacturing
Investor take
Pursue
Strong opportunity: asset-holding vehicle with strong profile and bankable structure.

Opportunity 72/100 (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
75
Lenders & charges
Confirmed no charges registered
85
Directors & officers
4 officers (1 active, 4 linked, 4 with DOB)
90
Ownership & PSC
1 active PSC(s) of 1 total, 1 with control declared
90
Director network
Network not yet resolved
30
Filing history
43 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
72/100Strong
PassWatchWorth a lookStrongExceptional 

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

Business quality
65
Adequate — check latest filings for context.
Acquirability
55
Some acquirability indicators.
Risk profile
85
Few red flags.
Signal strength
90
Good data coverage for analysis.

Signals from accounts

Derived from iXBRL accounts · accounting standard not declared
Positive net assets
Net assets £26,018
Net assets shrinking
Down £17,036 YoY

Key financials

2 years extracted from filed iXBRL accounts
Cash
—
Net Worth
£26k
↓ 40% YoY
Current Assets
£61k
↓ 8.8% YoY
Current Liabilities
—
£0£13k£27k£40k£54k£67kMar 2024Mar 2025

Hover to see exact values · click legend to toggle series

Financials

Extracted from Companies House accounts · accounting standard unknown
Metric2025-03-312024-03-31
Total assets£26.0k£43.1k
Current assets£61.0k£66.9k
Cash—£66.9k
Net assets£26.0k£43.1k

Amounts extracted automatically from iXBRL. Fields left blank were not reported or not mapped. Values in GBP unless stated.

Recent activity

Last 30 days
0
filings
Last 90 days
0
filings
Last 180 days
2
filings
  • • 1 confirmation-statement
  • • 1 accounts
Counts from Companies House filing history.
Corporate timeline (27 events)Click to expand
  1. 2025-12-09
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  2. 2025-05-01
    📄
    memorandum-articles
    incorporation · MA
  3. 2025-04-22
    📄
    memorandum-articles
    incorporation · MA
  4. 2025-04-02
    📄
    resolution
    resolution · RESOLUTIONS
  5. 2025-01-17
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  6. 2024-06-14
    ➖
    SMITH, James, Dr resigned
    director
  7. 2024-06-14
    📄
    termination-director-company-with-name-termination-date
    officers · TM01
  8. 2024-04-23
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  9. 2024-03-01
    📄
    change-account-reference-date-company-previous-shortened
    accounts · AA01
  10. 2023-12-12
    📄
    accounts-amended-with-accounts-type-micro-entity
    accounts · AAMD
  11. 2023-10-19
    📄
    change-account-reference-date-company-previous-extended
    accounts · AA01
  12. 2022-12-19
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  13. 2022-11-16
    📄
    change-person-director-company-with-change-date
    officers · CH01
  14. 2022-09-03
    ➖
    TSAO, Huan Hua resigned
    director
  15. 2022-09-03
    📄
    termination-director-company-with-name-termination-date
    officers · TM01
  16. 2021-11-22
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  17. 2021-11-03
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  18. 2021-10-03
    📄
    notification-of-a-person-with-significant-control
    persons-with-significant-control · PSC01
  19. 2021-10-03
    📄
    withdrawal-of-a-person-with-significant-control-statement
    persons-with-significant-control · PSC09
  20. 2021-09-17
    📄
    appoint-person-director-company-with-name-date
    officers · AP01
  21. 2021-09-15
    ➕
    SMITH, James, Dr appointed
    director
  22. 2021-09-01
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  23. 2019-11-08
    ➕
    TSAO, Huan Hua appointed
    director
  24. 2019-07-12
    ➖
    TSAO, Huan Hua, Mr. resigned
    director
  25. 2019-07-01
    ➕
    TSAO, Huan Hua, Mr. appointed
    director
  26. 2018-01-10
    🏢
    Company incorporated
    As ADVANCED DIAMONDX LTD
  27. 2018-01-10
    ➕
    ZHANG, Xian, Dr. appointed
    director

Owner dependency

75/100
High — earn-out structure required

Material founder dependency. Consider a 2-3 year earn-out and build in a handover plan before completion.

FACTORS
  • +Sole director: Only one active director — all governance concentrated on one person.

Succession & seller-readiness

45/100
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.

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
NameSharesVoting rightsNature of controlNotified
Dr Xian Zhang
Individual · Chinese · DOB 01/1986 · age 40
——board controlboard control03/10/2021

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 →
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Available from the Pro tier upwards.

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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.

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Company details

Statusactive
Typeltd
Incorporated2018-01-10
Jurisdictionengland-wales
Primary SIC32990 — Other manufacturing n.e.c.

Registered office

Desklodge House, 2 Redcliffe Way, Bristol
Desklodge House, 2 Redcliffe Way
Bristol
BS1 6NL
England

Filing status

Accounts
Next due: 2026-12-31
Last made up to: 2025-03-31
Confirmation statement
Next due: 2027-03-10
Last: 2026-02-24

Officers (1 active · 3 resigned)

ZHANG, Xian, Dr.→
director · ~40y · appointed 2018-01-10
View their other companies + combined net worth →
Active
SMITH, James, Dr→
director · ~53y · appointed 2021-09-15 · resigned 2024-06-14
Resigned
TSAO, Huan Hua→
director · ~52y · appointed 2019-11-08 · resigned 2022-09-03
Resigned
TSAO, Huan Hua, Mr.→
director · ~52y · appointed 2019-07-01 · resigned 2019-07-12
Resigned

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

Recent filings (43 total)

confirmation-statement-with-updates
confirmation-statement · CS01
2026-02-24
accounts-with-accounts-type-micro-entity
accounts · AA
2025-12-09
confirmation-statement-with-updates
confirmation-statement · CS01
2025-11-07
memorandum-articles
incorporation · MA
2025-05-01
memorandum-articles
incorporation · MA
2025-04-22
resolution
resolution · RESOLUTIONS
2025-04-02
accounts-with-accounts-type-total-exemption-full
accounts · AA
2025-01-17
confirmation-statement-with-updates
confirmation-statement · CS01
2024-11-05
termination-director-company-with-name-termination-date
officers · TM01
2024-06-14
accounts-with-accounts-type-total-exemption-full
accounts · AA
2024-04-23
change-account-reference-date-company-previous-shortened
accounts · AA01
2024-03-01
accounts-amended-with-accounts-type-micro-entity
accounts · AAMD
2023-12-12
confirmation-statement-with-no-updates
confirmation-statement · CS01
2023-10-25
change-account-reference-date-company-previous-extended
accounts · AA01
2023-10-19
accounts-with-accounts-type-micro-entity
accounts · AA
2022-12-19