AD DIAGNOSTICS LIMITED

🌱Startupactive
16758738 · ltd · incorporated 2025-10-02
Investment thesis
Established operating company — standard diligence applies, no dominant angle.
Why interesting: Live, filing, normal profile.
Why risky: No standout signals in either direction.
🔒Estimated value
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Turnover
not disclosed
Net worth
book net assets
Opportunity
67/100
Strong
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What this business does
Primary activity: SIC 99999
Sector: Extraterritorial bodies
Investor take
Pursue
Active trading company. Reasonable fundamentals — worth a memo before deciding.

Opportunity 67/100 (strong), bankability 65/100. High owner-dependency — earn-out structure likely required for clean transition. Share purchase looks the cleaner deal structure. Most likely exit: strategic trade sale (63/100).

Data confidence

Overall: medium (56/100)

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
No iXBRL financials extracted
0
Lenders & charges
Confirmed no charges registered
85
Directors & officers
3 officers (3 active, 3 linked, 1 with DOB)
77
Ownership & PSC
1 active PSC(s) of 2 total, 2 with control declared
90
Director network
10 connected companies via shared directors
75
Filing history
6 filings
60
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
67/100Strong
PassWatchWorth a lookStrongExceptional 

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

Business quality
60
Adequate — check latest filings for context.
Acquirability
55
Some acquirability indicators.
Risk profile
74
Few red flags.
Signal strength
90
Good data coverage for analysis.

Recent activity

Last 30 days
0
filings
Last 90 days
0
filings
Last 180 days
5
filings
  • 2 persons-with-significant-control
  • 2 address
  • 1 change-of-name
Counts from Companies House filing history.
Corporate timeline (10 events)Click to expand
  1. 2025-12-04
    📄
    notification-of-a-person-with-significant-control
    persons-with-significant-control · PSC02
  2. 2025-12-04
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  3. 2025-12-04
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  4. 2025-12-04
    📄
    cessation-of-a-person-with-significant-control
    persons-with-significant-control · PSC07
  5. 2025-12-04
    ✏️
    certificate-change-of-name-company
    change-of-name · CERTNM
  6. 2025-10-02
    🏢
    Company incorporated
    As AD DIAGNOSTICS LIMITED
  7. 2025-10-02
    MUCKLE SECRETARY LIMITED appointed
    corporate-secretary
  8. 2025-10-02
    CLARE, Philip appointed
    director
  9. 2025-10-02
    MUCKLE DIRECTOR LIMITED appointed
    corporate-director
  10. 2025-10-02
    📄
    incorporation-company
    incorporation · NEWINC

Owner dependency

78/100
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.
  • +Founder name in company name: Company name contains director surname "LIMITED" — strong identity link between founder and business.
  • +Young company: Only 0.6 years old — management layer unlikely to be developed.

Succession & seller-readiness

36/100
Weak signal

Limited succession signal. Not a near-term off-market candidate.

SIGNALS
  • secondaryTwo-director governance: Small-team governance. Succession depth is thin but not absent.

Red flags

1 med · 1 low
Name changed recently
medium

Name changes can be benign (rebrand) but can also precede distress, phoenix activity, or buyer concealment.

Evidence: 2025-12-04: certificate-change-of-name-company

Multiple registered office changes
low

Multiple address changes in a short period can indicate operational instability or admin disorder.

Group structure

Ab Scientific Ltd is the ultimate parent — holding 75%+ shares. This company sits inside their group.

🏛️
Ab Scientific Ltd
Corporate parent · holds 75-100% shares · board control
ultimate parent
AD DIAGNOSTICS LIMITED
This company · 16758738

Parent relationships inferred from Persons with Significant Control filings. Full subsidiary tree requires reverse-lookup (coming).

Shareholders & ownership

1 active beneficial owner · dominant holder ≥75%
NameSharesVoting rightsNature of controlNotified
Ab Scientific Ltd
Corporate entity
75100%
75–100%board control75-100% shares · 75-100% voting · board control24/11/2025
1 historic (ceased) PSC
  • Muckle Director Limitedceased 24/11/2025· 75-100% shares · 75-100% voting

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.

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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.

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Company details

Statusactive
Typeltd
Incorporated2025-10-02
Jurisdictionengland-wales
Primary SIC99999 — SIC 99999

Registered office

C/O Tcs Biosciences Limited Botolph Farm
Botolph Claydon
Buckingham
MK18 2LR
England

Filing status

Accounts
Next due: 2027-07-02
Last made up to:
Confirmation statement
Next due: 2026-10-15
Last:

Officers (3 active · 0 resigned)

MUCKLE SECRETARY LIMITED
corporate-secretary · appointed 2025-10-02
View their other companies + combined net worth →
Active
CLARE, Philip
director · ~45y · appointed 2025-10-02
View their other companies + combined net worth →
Active
MUCKLE DIRECTOR LIMITED
corporate-director · appointed 2025-10-02
View their other companies + combined net worth →
Active

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

Recent filings (6 total)

notification-of-a-person-with-significant-control
persons-with-significant-control · PSC02
2025-12-04
change-registered-office-address-company-with-date-old-address-new-address
address · AD01
2025-12-04
change-registered-office-address-company-with-date-old-address-new-address
address · AD01
2025-12-04
cessation-of-a-person-with-significant-control
persons-with-significant-control · PSC07
2025-12-04
certificate-change-of-name-company
change-of-name · CERTNM
2025-12-04
incorporation-company
incorporation · NEWINC
2025-10-02