NATIONAL ENERGY SYSTEM OPERATOR LIMITED

🏛️Establishedactive
11014226 · ltd · incorporated 2017-10-16
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
not disclosed
Net worth
book net assets
Opportunity
71/100
Strong
🔔
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What this business does

Day-to-day activity is unclear from the generic SIC code, but the name strongly suggests involvement in national energy grid coordination or system operation services; it may function as a holding or administrative vehicle related to the UK's energy infrastructure sector.

Primary activity: Other service activities n.e.c.
Sector: Other service activities
Investor take
Pass (distressed without resilience)
Distressed active trading company — structural issues outweigh the discount.

Opportunity 71/100 (strong), bankability 75/100. Share purchase looks the cleaner deal structure. Biggest value-creation lever: Resolve: 1 insolvency-related filing on record. Filings relating to insolvency, liquidation, or administration exist in the company's history. Review before proceeding. Most likely exit: share sale to pe / searcher (65/100).

Data confidence

Overall: medium (57/100)

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
28 officers (14 active, 28 linked, 24 with DOB)
87
Ownership & PSC
1 active PSC(s) of 2 total, 2 with control declared
90
Director network
2 connected companies via shared directors
51
Filing history
88 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
71/100Strong
PassWatchWorth a lookStrongExceptional 

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

Business quality
65
Adequate — check latest filings for context.
Acquirability
70
Strong succession / seller-readiness signals.
Risk profile
67
Some moderate concerns — review flags.
Signal strength
90
Good data coverage for analysis.

Recent activity

Last 30 days
0
filings
Last 90 days
5
filings
  • 2 officers
  • 2 capital
  • 1 confirmation-statement
Last 180 days
7
filings
  • 2 officers
  • 2 capital
  • 1 confirmation-statement
Counts from Companies House filing history.
Corporate timeline (65 events)Click to expand
  1. 2026-04-03
    📄
    appoint-person-director-company-with-name-date
    officers · AP01
  2. 2026-04-01
    MACKAY, Sheena Mary appointed
    director
  3. 2026-03-09
    📄
    change-person-director-company-with-change-date
    officers · CH01
  4. 2026-02-28
    📄
    capital-statement-capital-company-with-date-currency-figure
    capital · SH19
  5. 2026-02-23
    📄
    legacy
    capital · SH20
  6. 2026-02-13
    ⚠️
    legacy
    insolvency · CAP-SS
  7. 2026-02-13
    📄
    resolution
    resolution · RESOLUTIONS
  8. 2025-10-15
    📄
    appoint-person-director-company-with-name-date
    officers · AP01
  9. 2025-10-07
    📄
    accounts-with-accounts-type-full
    accounts · AA
  10. 2025-10-01
    FITZGERALD, Emma, Dr appointed
    director
  11. 2025-09-17
    📄
    change-person-director-company-with-change-date
    officers · CH01
  12. 2025-07-01
    CRACKETT, John appointed
    director
  13. 2025-07-01
    📄
    appoint-person-director-company-with-name-date
    officers · AP01
  14. 2025-04-01
    📄
    termination-director-company-with-name-termination-date
    officers · TM01
  15. 2025-03-31
    CRAWFORD, Janice Elliott resigned
    director
  16. 2025-02-04
    📄
    appoint-person-director-company-with-name-date
    officers · AP01
  17. 2025-02-03
    SCOTT, Jayne Patricia appointed
    director
  18. 2025-01-14
    📄
    change-person-director-company-with-change-date
    officers · CH01
  19. 2024-12-08
    📄
    change-person-director-company-with-change-date
    officers · CH01
  20. 2024-10-09
    📄
    memorandum-articles
    incorporation · MA
  21. 2024-10-09
    📄
    resolution
    resolution · RESOLUTIONS
  22. 2024-10-07
    📄
    change-person-director-company-with-change-date
    officers · CH01
  23. 2024-10-02
    📄
    change-person-secretary-company-with-change-date
    officers · CH03
  24. 2024-10-01
    DUFFY, Clare Siobhan appointed
    director
  25. 2024-10-01
    GOLBY, Paul, Dr appointed
    director
  26. 2024-10-01
    MORRISSEY, Zoe Elise resigned
    director
  27. 2024-10-01
    📄
    notification-of-a-person-with-significant-control
    persons-with-significant-control · PSC03
  28. 2024-10-01
    📄
    cessation-of-a-person-with-significant-control
    persons-with-significant-control · PSC07
  29. 2024-10-01
    📄
    appoint-person-director-company-with-name-date
    officers · AP01
  30. 2024-10-01
    📄
    change-person-director-company-with-change-date
    officers · CH01
  31. 2024-07-10
    MERRON, Gillian Joanna, Baroness resigned
    director
  32. 2023-09-11
    PATE, Charles appointed
    director
  33. 2023-07-17
    CRAWFORD, Janice Elliott appointed
    director
  34. 2022-12-31
    MORAN, Regina resigned
    director
  35. 2022-11-15
    MORRISSEY, Zoe Elise appointed
    director
  36. 2022-11-14
    SMITH, Gregg Edward, Mr. resigned
    director
  37. 2021-05-11
    FAVIER-TILSTON, Claire appointed
    secretary
  38. 2020-11-30
    QUINN, Roisin Anne resigned
    director
  39. 2020-08-01
    MORAN, Regina appointed
    director
  40. 2020-06-16
    LINWOOD, John Frederick appointed
    director
  41. 2020-05-04
    SMITH, Gregg Edward, Mr. appointed
    director
  42. 2020-05-04
    TUCKMAN, Claire Louise resigned
    director
  43. 2020-03-09
    QUINN, Roisin Anne appointed
    director
  44. 2020-02-17
    BURT, Duncan Bryden resigned
    director
  45. 2019-10-04
    ACKON, Chantal Marise resigned
    secretary
  46. 2019-05-23
    MORRISSEY, Zoe Elise appointed
    secretary
  47. 2019-04-01
    LEGGE, Kayte Anne Eve appointed
    director
  48. 2019-04-01
    NIXON, Hannah appointed
    director
  49. 2019-04-01
    PLUMMER, Paul Jonathan appointed
    director
  50. 2019-04-01
    ACKON, Chantal Marise appointed
    secretary
Showing most recent 50 of 65 events

Owner dependency

55/100
Moderate — manageable with handover

Some founder dependency, but not acute. A structured handover period should cover most risk.

FACTORS
  • -12 active directors: Broader management team in place — suggests transferable governance.
  • +Founder age: Director aged approximately 75 — succession pressure is live.

Succession & seller-readiness

60/100
Strong succession signal

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

SIGNALS
  • primaryFounder aged 70+: Senior director is approximately 75 years old. Natural succession window is now.

Red flags

1 high ·
1 insolvency-related filing on record
high

Filings relating to insolvency, liquidation, or administration exist in the company's history. Review before proceeding.

Evidence: 2026-02-13: legacy

Shareholders & ownership

1 active beneficial owner · dominant holder ≥75%
NameSharesVoting rightsNature of controlNotified
The Secretary Of State For Energy Security And Net Zero
Individual
75100%
75–100%board control75-100% shares · 75-100% voting · board control01/10/2024
1 historic (ceased) PSC
  • National Grid Holdings One Plcceased 01/10/2024· 75-100% shares · 75-100% voting · board control

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
Incorporated2017-10-16
Jurisdictionengland-wales
Primary SIC96090 — Other service activities n.e.c.

Registered office

St Catherine's Lodge Bearwood Road
Sindlesham
Wokingham
RG41 5BN
England

Filing status

Accounts
Next due: 2026-12-31
Last made up to: 2025-03-31
Confirmation statement
Next due: 2027-05-07
Last: 2026-04-23

Officers (14 active · 14 resigned)

FAVIER-TILSTON, Claire
secretary · appointed 2021-05-11
View their other companies + combined net worth →
Active
MORRISSEY, Zoe Elise
secretary · appointed 2019-05-23
View their other companies + combined net worth →
Active
CRACKETT, John
director · ~68y · appointed 2025-07-01
View their other companies + combined net worth →
Active
DUFFY, Clare Siobhan
director · ~60y · appointed 2024-10-01
View their other companies + combined net worth →
Active
FITZGERALD, Emma, Dr
director · ~59y · appointed 2025-10-01
View their other companies + combined net worth →
Active
GOLBY, Paul, Dr
director · ~75y · appointed 2024-10-01
View their other companies + combined net worth →
Active
LEGGE, Kayte Anne Eve
director · ~47y · appointed 2019-04-01
View their other companies + combined net worth →
Active
LINWOOD, John Frederick
director · ~64y · appointed 2020-06-16
View their other companies + combined net worth →
Active
MACKAY, Sheena Mary
director · ~65y · appointed 2026-04-01
View their other companies + combined net worth →
Active
NIXON, Hannah
director · ~53y · appointed 2019-04-01
View their other companies + combined net worth →
Active
PATE, Charles
director · ~49y · appointed 2023-09-11
View their other companies + combined net worth →
Active
PLUMMER, Paul Jonathan
director · ~61y · appointed 2019-04-01
View their other companies + combined net worth →
Active
SCOTT, Jayne Patricia
director · ~63y · appointed 2025-02-03
View their other companies + combined net worth →
Active
SLYE, Fintan Charles
director · ~56y · appointed 2019-03-01
View their other companies + combined net worth →
Active
ACKON, Chantal Marise
secretary · appointed 2019-04-01 · resigned 2019-10-04
Resigned
HAGAN, Lawrence
secretary · appointed 2017-10-16 · resigned 2019-04-01
Resigned
BARNES, Megan
director · ~39y · appointed 2018-11-30 · resigned 2019-04-01
Resigned
BURNS, Clive
director · ~68y · appointed 2017-10-16 · resigned 2019-04-01
Resigned
BURT, Duncan Bryden
director · ~50y · appointed 2019-04-01 · resigned 2020-02-17
Resigned
CRAWFORD, Janice Elliott
director · ~66y · appointed 2023-07-17 · resigned 2025-03-31
Resigned

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

Recent filings (88 total)

confirmation-statement-with-updates
confirmation-statement · CS01
2026-04-23
appoint-person-director-company-with-name-date
officers · AP01
2026-04-03
change-person-director-company-with-change-date
officers · CH01
2026-03-09
capital-statement-capital-company-with-date-currency-figure
capital · SH19
2026-02-28
legacy
capital · SH20
2026-02-23
legacy
insolvency · CAP-SS
2026-02-13
resolution
resolution · RESOLUTIONS
2026-02-13
confirmation-statement-with-updates
confirmation-statement · CS01
2025-10-15
appoint-person-director-company-with-name-date
officers · AP01
2025-10-15
accounts-with-accounts-type-full
accounts · AA
2025-10-07
change-person-director-company-with-change-date
officers · CH01
2025-09-17
appoint-person-director-company-with-name-date
officers · AP01
2025-07-01
termination-director-company-with-name-termination-date
officers · TM01
2025-04-01
appoint-person-director-company-with-name-date
officers · AP01
2025-02-04
change-person-director-company-with-change-date
officers · CH01
2025-01-14