BIOTEK ENVIRONMENTAL SCIENCE UK LIMITED

🌿Early-stageactive
SC775508 · ltd · incorporated 2023-07-11
Investment thesis
Growth-phase business — story-led; valuation sensitive to momentum.
Why interesting: Trading is scaling; acquirers paying for trajectory get disproportionate leverage.
Why risky: Price often leads fundamentals; dependency on founder often high.
🔒Estimated value
Upgrade to see
Turnover
year to Jul 2025
Net worth
£-160.5k
book net assets
Opportunity
75/100
Strong
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What this business does
Primary activity: Disinfecting and exterminating services
Sector: Administrative & support services
Investor take
Pass (distressed without resilience)
Active trading company. Family succession underway — not a classic acquisition target.

Opportunity 75/100 (strong), bankability 70/100. Same-surname younger director in place — likely family handover, not open to sale. Share purchase looks the cleaner deal structure. Most likely exit: share sale to pe / searcher (73/100).

Data confidence

Overall: high (81/100)

Strong data coverage across all sections. AI outputs should be trusted with minimal caveats.

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
2 officers (2 active, 2 linked, 2 with DOB)
90
Ownership & PSC
2 active PSC(s) of 2 total, 2 with control declared
90
Director network
6 connected companies via shared directors
63
Filing history
11 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
75/100Strong
PassWatchWorth a lookStrongExceptional 

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

Business quality
60
Adequate — check latest filings for context.
Acquirability
70
Strong succession / seller-readiness signals.
Risk profile
85
Few red flags.
Signal strength
90
Good data coverage for analysis.

Signals from accounts

Derived from iXBRL accounts · FRS 105 (micro)
Negative net assets
Liabilities exceed assets by £160,533

Key financials

2 years extracted from filed iXBRL accounts
Cash
Net Worth
-£161k
↓ 337% YoY
Current Assets
£15k
↓ 27% YoY
Current Liabilities
-£161k-£124k-£88k-£52k-£15k£21kJul 2024Jul 2025

Hover to see exact values · click legend to toggle series

Financials

Extracted from Companies House accounts · FRS 105 (micro)
Metric2025-07-312024-07-31
Total assets£-159.6k£-35.7k
Current assets£15.4k£21.1k
Net assets£-160.5k£-36.7k

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
1
filing
  • 1 accounts
Last 90 days
1
filing
  • 1 accounts
Last 180 days
1
filing
  • 1 accounts
Counts from Companies House filing history.
Corporate timeline (12 events)Click to expand
  1. 2026-04-20
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  2. 2025-07-05
    📄
    gazette-filings-brought-up-to-date
    gazette · DISS40
  3. 2025-07-04
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  4. 2025-06-17
    📄
    gazette-notice-compulsory
    gazette · GAZ1
  5. 2024-06-17
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  6. 2024-02-07
    📄
    notification-of-a-person-with-significant-control
    persons-with-significant-control · PSC02
  7. 2024-02-06
    📄
    change-to-a-person-with-significant-control
    persons-with-significant-control · PSC04
  8. 2024-02-06
    📄
    capital-allotment-shares
    capital · SH01
  9. 2023-07-11
    🏢
    Company incorporated
    As BIOTEK ENVIRONMENTAL SCIENCE UK LIMITED
  10. 2023-07-11
    MCARTHUR, Colin appointed
    director
  11. 2023-07-11
    MCARTHUR, Niamh Aine Elizabeth appointed
    director
  12. 2023-07-11
    📄
    incorporation-company
    incorporation · NEWINC

Owner dependency

86/100
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
  • +Two-director setup: Only two active directors — typical of owner-managed SMEs but limits succession.
  • +Founder age: Director aged approximately 65 — succession pressure is live.
  • +Family involvement: Multiple officers share a surname — likely family business, which concentrates governance.
  • +Young company: Only 2.8 years old — management layer unlikely to be developed.

Succession & seller-readiness

16/100
No succession signal

No meaningful acquirability indicators from public data.

SIGNALS
  • primaryFamily succession underway: Not a takeover target — MCARTHUR, Niamh Aine Elizabeth (same surname) appointed 2023-07-11. Pattern consistent with intra-family handover.
  • primaryFounder aged 63+: Senior director is approximately 65. Approaching typical UK retirement age — succession thinking likely.
  • secondaryTwo-director governance: Small-team governance. Succession depth is thin but not absent.

Red flags

clean
No red flags detected from available public data. (This is not a clean bill of health — detailed accounts review still recommended.)

Group structure

Biotek Environmental Science Ltd. holds 25-50% — a significant corporate investor but not a controlling parent.

🏛️
Biotek Environmental Science Ltd.
Corporate parent · holds 25-50% shares · board control
significant stake
BIOTEK ENVIRONMENTAL SCIENCE UK LIMITED
This company · SC775508

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

Shareholders & ownership

2 active beneficial owners
NameSharesVoting rightsNature of controlNotified
Biotek Environmental Science Ltd.
Corporate entity
2550%
25–50%board control25-50% shares · 25-50% voting · board control02/02/2024
Mr Colin Mcarthur
Individual · British · DOB 01/1961 · age 65
2550%
25–50%board control25-50% shares · 25-50% voting · board control11/07/2023

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

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
Incorporated2023-07-11
Jurisdictionscotland
Primary SIC81291 — Disinfecting and exterminating services

Registered office

Unit 1, Block 3 Dundyvan Industrial Estate
Coatbridge
ML5 4AQ
Scotland

Filing status

Accounts
Next due: 2027-04-30
Last made up to: 2025-07-31
Confirmation statement
Next due: 2026-07-24
Last: 2025-07-10

Officers (2 active · 0 resigned)

MCARTHUR, Colin
director · ~65y · appointed 2023-07-11
View their other companies + combined net worth →
Active
MCARTHUR, Niamh Aine Elizabeth
director · ~28y · appointed 2023-07-11
View their other companies + combined net worth →
Active

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

Recent filings (11 total)

accounts-with-accounts-type-micro-entity
accounts · AA
2026-04-20
confirmation-statement-with-no-updates
confirmation-statement · CS01
2025-07-10
gazette-filings-brought-up-to-date
gazette · DISS40
2025-07-05
accounts-with-accounts-type-micro-entity
accounts · AA
2025-07-04
gazette-notice-compulsory
gazette · GAZ1
2025-06-17
confirmation-statement-with-updates
confirmation-statement · CS01
2024-07-22
change-registered-office-address-company-with-date-old-address-new-address
address · AD01
2024-06-17
notification-of-a-person-with-significant-control
persons-with-significant-control · PSC02
2024-02-07
change-to-a-person-with-significant-control
persons-with-significant-control · PSC04
2024-02-06
capital-allotment-shares
capital · SH01
2024-02-06
incorporation-company
incorporation · NEWINC
2023-07-11