A BIO LIMITED

🏛️Establishedactive
13349556 · ltd · incorporated 2021-04-21
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
Upgrade to see
Turnover
year to Apr 2025
Net worth
£19.3k
book net assets
Opportunity
77/100
Strong
🔔
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What this business does
Primary activity: Research and experimental development on biotechnology
Sector: Professional, scientific & technical
Investor take
Pursue
Strong opportunity: asset-holding vehicle with strong profile and bankable structure.

Opportunity 77/100 (strong), bankability 75/100. High owner-dependency — earn-out structure likely required for clean transition. Share purchase looks the cleaner deal structure. Most likely exit: share sale to pe / searcher (65/100).

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
4 officers (4 active, 4 linked, 3 with DOB)
85
Ownership & PSC
3 active PSC(s) of 3 total, 3 with control declared
90
Director network
10 connected companies via shared directors
75
Filing history
18 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
77/100Strong
PassWatchWorth a lookStrongExceptional 

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

Business quality
65
Adequate — check latest filings for context.
Acquirability
75
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 · accounting standard not declared
Positive net assets
Net assets £19,290

Key financials

2 years extracted from filed iXBRL accounts
Cash
£5k
Net Worth
£19k
Current Assets
£25k
Current Liabilities
£0£5k£10k£15k£20k£25kApr 2024Apr 2025

Hover to see exact values · click legend to toggle series

Financials

Extracted from Companies House accounts · accounting standard unknown
Metric2025-04-302024-04-30
Total assets£19.3k
Current assets£24.5k
Cash£4.7k
Debtors£19.9k
Net assets£19.3k

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
1
filing
  • 1 confirmation-statement
Last 90 days
1
filing
  • 1 confirmation-statement
Last 180 days
2
filings
  • 1 confirmation-statement
  • 1 accounts
Counts from Companies House filing history.
Corporate timeline (18 events)Click to expand
  1. 2026-01-26
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  2. 2025-03-26
    📄
    capital-name-of-class-of-shares
    capital · SH08
  3. 2025-03-26
    📄
    resolution
    resolution · RESOLUTIONS
  4. 2025-03-26
    📄
    memorandum-articles
    incorporation · MA
  5. 2025-03-25
    📄
    notification-of-a-person-with-significant-control
    persons-with-significant-control · PSC02
  6. 2025-03-25
    📄
    capital-allotment-shares
    capital · SH01
  7. 2025-01-02
    📄
    accounts-with-accounts-type-dormant
    accounts · AA
  8. 2024-11-12
    HAINING, Alexander William Mackay, Dr appointed
    director
  9. 2024-11-12
    📄
    appoint-person-director-company-with-name-date
    officers · AP01
  10. 2024-01-02
    📄
    accounts-with-accounts-type-dormant
    accounts · AA
  11. 2022-05-16
    📄
    accounts-with-accounts-type-dormant
    accounts · AA
  12. 2021-04-28
    THE CAMBRIDGE PARTNERSHIP LIMITED appointed
    corporate-secretary
  13. 2021-04-28
    GRAINGER, Rebecca Katie appointed
    director
  14. 2021-04-28
    📄
    appoint-corporate-secretary-company-with-name-date
    officers · AP04
  15. 2021-04-28
    📄
    appoint-person-director-company-with-name-date
    officers · AP01
  16. 2021-04-21
    🏢
    Company incorporated
    As A BIO LIMITED
  17. 2021-04-21
    GRAINGER, David John, Dr appointed
    director
  18. 2021-04-21
    📄
    incorporation-company
    incorporation · NEWINC

Owner dependency

66/100
High — earn-out structure required

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

FACTORS
  • +Senior director age: Director aged approximately 60 — approaching natural succession window.
  • +Family involvement: Multiple officers share a surname — likely family business, which concentrates governance.

Succession & seller-readiness

40/100
Moderate signal

Some succession indicators present. Worth watching; approach if sector/strategy fits.

SIGNALS
  • secondaryFounder aged 58+: Senior director is approximately 60. Early succession window.

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

Elements Squared Limited holds 25-50% — a significant corporate investor but not a controlling parent.

🏛️
Elements Squared Limited
Corporate parent · holds 25-50% shares
significant stake
A BIO LIMITED
This company · 13349556

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

Shareholders & ownership

3 active beneficial owners
NameSharesVoting rightsNature of controlNotified
Elements Squared Limited
Corporate entity
2550%
25–50%25-50% shares · 25-50% voting20/03/2025
Dr David John Grainger
Individual · British · DOB 10/1966 · age 60
2550%
25–50%board control25-50% shares · 25-50% voting · board control21/04/2021
Ms Rebecca Katie Grainger
Individual · British · DOB 02/2004 · age 22
2550%
25–50%board control25-50% shares · 25-50% voting · board control21/04/2021

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

6 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
Incorporated2021-04-21
Jurisdictionengland-wales
Primary SIC72110 — Research and experimental development on biotechnology

Registered office

Building 950 Babraham Research Campus
Babraham
Cambridge
CB22 3FH
England

Filing status

Accounts
Next due: 2027-01-31
Last made up to: 2025-04-30
Confirmation statement
Next due: 2027-05-04
Last: 2026-04-20

Officers (4 active · 0 resigned)

THE CAMBRIDGE PARTNERSHIP LIMITED
corporate-secretary · appointed 2021-04-28
View their other companies + combined net worth →
Active
GRAINGER, David John, Dr
director · ~60y · appointed 2021-04-21
View their other companies + combined net worth →
Active
GRAINGER, Rebecca Katie
director · ~22y · appointed 2021-04-28
View their other companies + combined net worth →
Active
HAINING, Alexander William Mackay, Dr
director · ~36y · appointed 2024-11-12
View their other companies + combined net worth →
Active

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

Recent filings (18 total)

confirmation-statement-with-no-updates
confirmation-statement · CS01
2026-04-20
accounts-with-accounts-type-total-exemption-full
accounts · AA
2026-01-26
confirmation-statement-with-updates
confirmation-statement · CS01
2025-04-22
capital-name-of-class-of-shares
capital · SH08
2025-03-26
resolution
resolution · RESOLUTIONS
2025-03-26
memorandum-articles
incorporation · MA
2025-03-26
notification-of-a-person-with-significant-control
persons-with-significant-control · PSC02
2025-03-25
capital-allotment-shares
capital · SH01
2025-03-25
accounts-with-accounts-type-dormant
accounts · AA
2025-01-02
appoint-person-director-company-with-name-date
officers · AP01
2024-11-12
confirmation-statement-with-no-updates
confirmation-statement · CS01
2024-04-22
accounts-with-accounts-type-dormant
accounts · AA
2024-01-02
confirmation-statement-with-no-updates
confirmation-statement · CS01
2023-04-20
accounts-with-accounts-type-dormant
accounts · AA
2022-05-16
confirmation-statement-with-no-updates
confirmation-statement · CS01
2022-04-20