ABACUS LONDON LIMITED

💤Zombieactive
02142985 · ltd · incorporated 1987-06-29
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
—
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Turnover
—
year to Jun 2025
Net worth
—
book net assets
Opportunity
78/100
Strong
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What this business does
Primary activity: Accounting and auditing activities
Sector: Professional, scientific & technical
Investor take
Pursue
Strong opportunity: active trading company with strong profile and bankable structure.

Opportunity 78/100 (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 (73/100).

Data confidence

Overall: medium (76/100)

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
5 officers (2 active, 5 linked, 3 with DOB)
82
Ownership & PSC
1 active PSC(s) of 1 total, 1 with control declared
90
Director network
Network not yet resolved
30
Filing history
95 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
78/100Strong
PassWatchWorth a lookStrongExceptional 

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

Business quality
70
Active, clean filings, stable charge profile.
Acquirability
70
Strong succession / seller-readiness signals.
Risk profile
85
Few red flags.
Signal strength
90
Good data coverage for analysis.

Key financials

2 years extracted from filed iXBRL accounts
Cash
—
Net Worth
—
Current Assets
—
Current Liabilities
—
£0£0£0£0£0£0Jun 2024Jun 2025

Hover to see exact values · click legend to toggle series

Financials

Extracted from Companies House accounts · accounting standard unknown
Metric2025-06-302024-06-30
Average employees200200

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
1
filing
  • • 1 accounts
Last 180 days
4
filings
  • • 1 accounts
  • • 1 confirmation-statement
  • • 1 address
Counts from Companies House filing history.
Corporate timeline (21 events)Click to expand
  1. 2026-03-27
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  2. 2025-12-31
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  3. 2025-12-31
    📄
    termination-director-company-with-name-termination-date
    officers · TM01
  4. 2025-12-30
    ➖
    WICKERSON, Susan Joan resigned
    director
  5. 2025-03-25
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  6. 2024-03-26
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  7. 2023-04-28
    📄
    appoint-person-director-company-with-name-date
    officers · AP01
  8. 2023-04-01
    ➕
    KOOLHAAS REVERS, Maria Jane appointed
    director
  9. 2023-03-20
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  10. 2023-03-13
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  11. 2022-03-21
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  12. 2021-03-27
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  13. 2020-03-30
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  14. 2019-07-11
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  15. 2019-03-31
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  16. 2018-03-31
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  17. 2017-03-31
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  18. 1998-11-25
    ➕
    KOOLHAAS-REVERS, Maria Jane appointed
    secretary
  19. 1998-11-25
    ➖
    SAWYER, Dawn Elizabeth resigned
    secretary
  20. 1995-12-13
    ➖
    BIRKETT, Michael John resigned
    director
  21. 1987-06-29
    🏢
    Company incorporated
    As ABACUS LONDON LIMITED

Owner dependency

83/100
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.
  • +Senior director age: Director aged approximately 60 — approaching natural succession window.

Succession & seller-readiness

65/100
Strong succession signal

Multiple signals suggest succession is on the horizon. Candidate for proactive outreach.

SIGNALS
  • secondaryFounder aged 58+: Senior director is approximately 60. Early succession window.
  • primarySole active director: Only one director in control. No visible successor — buyers solve the succession problem.
  • secondaryStable-but-static management: Company is 39 years old and no new directors in the last 3 years — succession not yet being planned internally.

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%
NameSharesVoting rightsNature of controlNotified
Miss Maria Jane Koolhaas Revers
Individual · British · DOB 12/1966 · age 60
75–100%
—75-100% shares09/12/2016

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 →
🔒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
Incorporated1987-06-29
Jurisdictionengland-wales
Primary SIC69201 — Accounting and auditing activities

Registered office

13a Trinity Close
Bromley
BR2 8ND
England

Filing status

Accounts
Next due: 2027-03-31
Last made up to: 2025-06-30
Confirmation statement
Next due: 2027-01-14
Last: 2025-12-31

Officers (2 active · 3 resigned)

KOOLHAAS-REVERS, Maria Jane→
secretary · appointed 1998-11-25
View their other companies + combined net worth →
Active
KOOLHAAS REVERS, Maria Jane→
director · ~60y · appointed 2023-04-01
View their other companies + combined net worth →
Active
SAWYER, Dawn Elizabeth→
secretary · resigned 1998-11-25
Resigned
BIRKETT, Michael John→
director · ~92y · resigned 1995-12-13
Resigned
WICKERSON, Susan Joan→
director · ~78y · resigned 2025-12-30
Resigned

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

Recent filings (95 total)

accounts-with-accounts-type-micro-entity
accounts · AA
2026-03-27
confirmation-statement-with-no-updates
confirmation-statement · CS01
2026-01-06
change-registered-office-address-company-with-date-old-address-new-address
address · AD01
2025-12-31
termination-director-company-with-name-termination-date
officers · TM01
2025-12-31
accounts-with-accounts-type-micro-entity
accounts · AA
2025-03-25
confirmation-statement-with-no-updates
confirmation-statement · CS01
2025-01-09
accounts-with-accounts-type-micro-entity
accounts · AA
2024-03-26
confirmation-statement-with-no-updates
confirmation-statement · CS01
2024-01-09
appoint-person-director-company-with-name-date
officers · AP01
2023-04-28
accounts-with-accounts-type-micro-entity
accounts · AA
2023-03-20
change-registered-office-address-company-with-date-old-address-new-address
address · AD01
2023-03-13
confirmation-statement-with-no-updates
confirmation-statement · CS01
2023-01-03
accounts-with-accounts-type-micro-entity
accounts · AA
2022-03-21
confirmation-statement-with-no-updates
confirmation-statement · CS01
2022-01-04
accounts-with-accounts-type-micro-entity
accounts · AA
2021-03-27