CALLISIA LIMITED

💤Zombieactive
00839198 · ltd · incorporated 1965-02-26
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
—
book net assets
Opportunity
80/100
Exceptional
🔔
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What this business does
Primary activity: SIC 35300
Sector: Electricity, gas & energy
Investor take
Pursue
Active trading company with a 66-year-old founder — textbook succession opportunity.

Opportunity 80/100 (exceptional), bankability 75/100. Strong seller-intent signal (83/100, director aged 66). 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
15 officers (2 active, 15 linked, 9 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
150 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
80/100Exceptional
PassWatchWorth a lookStrongExceptional 

Strong composite across quality, acquirability, and risk. High-priority target — progress to serious diligence.

Business quality
70
Active, clean filings, stable charge profile.
Acquirability
80
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£418k£836k£1.3m£1.7m£2.1mMar 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—£288.7k
Current assets—£2.09M
Cash—£135.9k
Debtors—£1.95M
Net assets—£288.7k
Average employees1100—

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
2
filings
  • • 1 persons-with-significant-control
  • • 1 confirmation-statement
Last 90 days
3
filings
  • • 1 persons-with-significant-control
  • • 1 confirmation-statement
  • • 1 accounts
Last 180 days
4
filings
  • • 1 persons-with-significant-control
  • • 1 confirmation-statement
  • • 1 accounts
Counts from Companies House filing history.
Corporate timeline (41 events)Click to expand
  1. 2026-05-07
    📄
    change-to-a-person-with-significant-control
    persons-with-significant-control · PSC04
  2. 2026-03-30
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  3. 2026-01-19
    📄
    termination-director-company-with-name-termination-date
    officers · TM01
  4. 2026-01-16
    ➖
    TAYLOR, David Stephen resigned
    director
  5. 2024-09-10
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  6. 2023-10-02
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  7. 2022-06-28
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  8. 2022-04-13
    📄
    change-account-reference-date-company-previous-shortened
    accounts · AA01
  9. 2022-03-29
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  10. 2022-02-18
    📄
    change-account-reference-date-company-previous-extended
    accounts · AA01
  11. 2020-12-14
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  12. 2019-07-01
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  13. 2018-06-29
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  14. 2018-05-03
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  15. 2017-08-14
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  16. 2017-06-05
    📄
    change-person-secretary-company-with-change-date
    officers · CH03
  17. 2015-11-06
    ➕
    TAYLOR, David Stephen appointed
    director
  18. 2011-05-23
    ➖
    DAVIS, Robert resigned
    director
  19. 2004-12-29
    ➕
    TAVERNER, Michael John appointed
    secretary
  20. 2004-12-29
    ➖
    PALMERSTON SECRETARIES LIMITED resigned
    corporate-secretary
  21. 2004-03-22
    ➕
    TAVERNER, Michael John appointed
    director
  22. 2004-03-22
    ➕
    DAVIS, Robert appointed
    director
  23. 2004-03-22
    ➖
    PALMERSTON NOMINEES LIMITED resigned
    corporate-director
  24. 2004-03-22
    ➖
    PALMERSTON SECRETARIES LIMITED resigned
    corporate-director
  25. 2002-03-01
    ➖
    TAVERNER, Michael John resigned
    secretary
  26. 2002-03-01
    ➖
    HEAD, Lorraine Ida resigned
    director
  27. 2002-03-01
    ➖
    RAMSEY, Beverley Jane Iris resigned
    director
  28. 2002-03-01
    ➖
    TAVERNER, Claire resigned
    director
  29. 2002-03-01
    ➖
    TAVERNER, Michael John resigned
    director
  30. 2001-11-01
    ➕
    PALMERSTON SECRETARIES LIMITED appointed
    corporate-secretary
  31. 2001-11-01
    ➕
    PALMERSTON NOMINEES LIMITED appointed
    corporate-director
  32. 2001-11-01
    ➕
    PALMERSTON SECRETARIES LIMITED appointed
    corporate-director
  33. 1996-08-19
    ➕
    HEAD, Lorraine Ida appointed
    director
  34. 1996-08-19
    ➕
    RAMSEY, Beverley Jane Iris appointed
    director
  35. 1996-08-19
    ➕
    TAVERNER, Claire appointed
    director
  36. 1996-08-19
    ➖
    TAVERNER, Hanna Patricia resigned
    director
  37. 1996-08-19
    ➕
    TAVERNER, Michael John appointed
    director
  38. 1996-01-23
    ➖
    TAVERNER, Stanley Edward resigned
    director
  39. 1995-08-23
    ➖
    TAVERNER, Hanna Patricia resigned
    secretary
  40. 1995-08-23
    ➕
    TAVERNER, Michael John appointed
    secretary
  41. 1965-02-26
    🏢
    Company incorporated
    As CALLISIA LIMITED

Owner dependency

100/100
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.
  • +Long-tenure founder: Senior director has been in place 22 years — deep operational knowledge concentrated in one person.
  • +Founder age: Director aged approximately 66 — succession pressure is live.

Succession & seller-readiness

95/100
Likely off-market candidate

Strong acquirability signals converging. Worth approaching directly — this is how off-market deals start.

SIGNALS
  • primaryFounder aged 63+: Senior director is approximately 66. Approaching typical UK retirement age — succession thinking likely.
  • primarySole active director: Only one director in control. No visible successor — buyers solve the succession problem.
  • primary20+ year tenure: Director in role 22 years. Very long tenure is a classic succession signal.
  • secondaryStable-but-static management: Company is 61 years old and no new directors in the last 3 years — succession not yet being planned internally.
  • supportingClean filings + long tenure: Disciplined long-tenure operator — classic lifestyle-business pattern that often sells quietly.

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
Mr Michael John Taverner
Individual · British · DOB 04/1960 · age 66
75–100%
—75-100% shares06/04/2016

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

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
Incorporated1965-02-26
Jurisdictionengland-wales
Primary SIC35300 — SIC 35300

Registered office

55 Staines Road West
Sunbury-On-Thames
TW16 7AH
England

Filing status

Accounts
Next due: 2026-12-31
Last made up to: 2025-03-31
Confirmation statement
Next due: 2027-04-25
Last: 2026-04-11

Officers (2 active · 13 resigned)

TAVERNER, Michael John→
secretary · appointed 2004-12-29
View their other companies + combined net worth →
Active
TAVERNER, Michael John→
director · ~66y · appointed 2004-03-22
View their other companies + combined net worth →
Active
TAVERNER, Hanna Patricia→
secretary · resigned 1995-08-23
Resigned
TAVERNER, Michael John→
secretary · appointed 1995-08-23 · resigned 2002-03-01
Resigned
PALMERSTON SECRETARIES LIMITED→
corporate-secretary · appointed 2001-11-01 · resigned 2004-12-29
Resigned
DAVIS, Robert→
director · ~69y · appointed 2004-03-22 · resigned 2011-05-23
Resigned
HEAD, Lorraine Ida→
director · ~69y · appointed 1996-08-19 · resigned 2002-03-01
Resigned
RAMSEY, Beverley Jane Iris→
director · ~64y · appointed 1996-08-19 · resigned 2002-03-01
Resigned
TAVERNER, Claire→
director · ~59y · appointed 1996-08-19 · resigned 2002-03-01
Resigned
TAVERNER, Hanna Patricia→
director · ~89y · resigned 1996-08-19
Resigned
TAVERNER, Michael John→
director · ~66y · appointed 1996-08-19 · resigned 2002-03-01
Resigned
TAVERNER, Stanley Edward→
director · ~101y · resigned 1996-01-23
Resigned
TAYLOR, David Stephen→
director · ~67y · appointed 2015-11-06 · resigned 2026-01-16
Resigned
PALMERSTON NOMINEES LIMITED→
corporate-director · appointed 2001-11-01 · resigned 2004-03-22
Resigned
PALMERSTON SECRETARIES LIMITED→
corporate-director · appointed 2001-11-01 · resigned 2004-03-22
Resigned

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

Recent filings (150 total)

change-to-a-person-with-significant-control
persons-with-significant-control · PSC04
2026-05-07
confirmation-statement-with-no-updates
confirmation-statement · CS01
2026-05-07
accounts-with-accounts-type-total-exemption-full
accounts · AA
2026-03-30
termination-director-company-with-name-termination-date
officers · TM01
2026-01-19
confirmation-statement-with-no-updates
confirmation-statement · CS01
2025-04-22
accounts-with-accounts-type-total-exemption-full
accounts · AA
2024-09-10
confirmation-statement-with-no-updates
confirmation-statement · CS01
2024-04-18
accounts-with-accounts-type-total-exemption-full
accounts · AA
2023-10-02
confirmation-statement-with-no-updates
confirmation-statement · CS01
2023-04-24
accounts-with-accounts-type-total-exemption-full
accounts · AA
2022-06-28
change-account-reference-date-company-previous-shortened
accounts · AA01
2022-04-13
confirmation-statement-with-updates
confirmation-statement · CS01
2022-04-11
accounts-with-accounts-type-total-exemption-full
accounts · AA
2022-03-29
change-account-reference-date-company-previous-extended
accounts · AA01
2022-02-18
confirmation-statement-with-no-updates
confirmation-statement · CS01
2022-01-12