21ST CENTURY STEAM LIMITED

🏛️Establishedactive

11330729 · ltd · incorporated 2018-04-26

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 Mar 2025

Net worth

£1

book net assets

Opportunity

74/100

Strong

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What this business does

Primary activity: SIC 30200

Sector: Manufacturing

Investor take

Pursue

Strong opportunity: asset-holding vehicle with strong profile and bankable structure.

Opportunity 74/100 (strong), bankability 75/100. Share purchase looks the cleaner deal structure. Most likely exit: share sale to pe / searcher (65/100).

Data confidence

Overall: high (82/100)

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

Lenders & charges

Confirmed no charges registered

Directors & officers

18 officers (9 active, 18 linked, 17 with DOB)

Ownership & PSC

1 active PSC(s) of 1 total, 1 with control declared

Director network

10 connected companies via shared directors

Filing history

45 filings on record

Gazette notices

No matching gazette notices (standard for active companies)

Opportunity Score

74/100Strong

PassWatchWorth a lookStrongExceptional

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

Business quality

Adequate — check latest filings for context.

Acquirability

Strong succession / seller-readiness signals.

Risk profile

Few red flags.

Signal strength

Good data coverage for analysis.

Signals from accounts

Derived from iXBRL accounts · accounting standard not declared

Positive net assets

Net assets £1

Key financials

2 years extracted from filed iXBRL accounts

Cash

—

Net Worth

£1

Current Assets

—

Current Liabilities

—

Hover to see exact values · click legend to toggle series

Financials

Extracted from Companies House accounts · accounting standard unknown

Metric	2025-03-31	2024-03-31
Total assets	£1	—
Net assets	£1	—

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

filings

Last 90 days

filing

• 1 accounts

Last 180 days

filings

• 2 officers
• 1 accounts

Counts from Companies House filing history.

Corporate timeline (48 events)Click to expand

2026-03-27
📄
accounts-with-accounts-type-micro-entity
accounts · AA
2026-01-26
📄
appoint-person-director-company-with-name-date
officers · AP01
2026-01-14
➕
HUGHES, Gary Nigel appointed
director
2025-12-02
📄
termination-director-company-with-name-termination-date
officers · TM01
2025-11-28
➖
MCDONALD, Benjamin Mark resigned
director
2025-07-04
📄
appoint-person-director-company-with-name-date
officers · AP01
2025-07-01
➕
COURTENEY-HARRIS, Richard John appointed
director
2025-05-07
📄
termination-director-company-with-name-termination-date
officers · TM01
2025-05-05
➖
COURTENEY-HARRIS, Richard John resigned
director
2025-01-21
📄
appoint-person-director-company-with-name-date
officers · AP01
2025-01-15
➕
WELSH, Martin Brian appointed
director
2024-12-30
📄
accounts-with-accounts-type-dormant
accounts · AA
2024-11-21
📄
change-person-director-company-with-change-date
officers · CH01
2024-06-17
📄
appoint-person-director-company-with-name-date
officers · AP01
2024-06-11
➕
KYTE, Wayne Alan appointed
director
2024-01-09
📄
termination-director-company-with-name-termination-date
officers · TM01
2023-12-31
➖
PARKER, Huw Jonathan resigned
director
2023-12-21
📄
accounts-with-accounts-type-dormant
accounts · AA
2023-10-31
📄
appoint-person-director-company-with-name-date
officers · AP01
2023-10-27
➕
GIBSON, Elizabeth Alexandra Ross appointed
director
2023-10-18
📄
termination-director-company-with-name-termination-date
officers · TM01
2023-10-11
➖
BRUCE, Paul Andrew resigned
director
2023-07-14
📍
change-registered-office-address-company-with-date-old-address-new-address
address · AD01
2023-05-25
📄
change-to-a-person-with-significant-control
persons-with-significant-control · PSC05
2022-12-21
📄
accounts-with-accounts-type-dormant
accounts · AA
2022-02-07
📄
termination-director-company-with-name-termination-date
officers · TM01
2021-12-22
📄
accounts-with-accounts-type-dormant
accounts · AA
2021-12-20
➖
ALLATT, Mark Colin resigned
director
2021-04-07
📄
change-person-director-company-with-change-date
officers · CH01
2021-02-19
📄
accounts-with-accounts-type-dormant
accounts · AA
2020-12-31
➕
COURTENEY-HARRIS, Richard John appointed
director
2020-12-31
➕
MCDONALD, Benjamin Mark appointed
director
2020-11-18
➖
ELLIOTT, David Andrew resigned
director
2020-07-28
➕
DAVIES, Stephen appointed
director
2019-01-21
➖
BURGESS, David Erwyn resigned
secretary
2019-01-21
➖
BURGESS, David Erwyn resigned
director
2018-12-15
➖
MORLAND, Robert John resigned
director
2018-11-16
➕
PARKER, Huw Jonathan appointed
director
2018-09-22
➕
BUNKER, Graeme appointed
director
2018-09-22
➕
LANGER, Graham Philip appointed
director
2018-09-22
➕
WALKER, James Christopher appointed
director
2018-09-22
➕
BRUCE, Paul Andrew appointed
director
2018-09-22
➕
ELLIOTT, David Andrew appointed
director
2018-09-22
➕
MORLAND, Robert John appointed
director
2018-04-26
🏢
Company incorporated
As 21ST CENTURY STEAM LIMITED
2018-04-26
➕
BURGESS, David Erwyn appointed
secretary
2018-04-26
➕
ALLATT, Mark Colin appointed
director
2018-04-26
➕
BURGESS, David Erwyn appointed
director

Owner dependency

55/100

Moderate — manageable with handover

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

FACTORS

-9 active directors: Broader management team in place — suggests transferable governance.
+Founder age: Director aged approximately 83 — 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 83 years old. Natural succession window is now.

Red flags

1 med ·

2 director resignations in last 12 months

medium

Multiple recent departures can indicate governance disagreement, succession event, or preparation for sale/stress.

Evidence: COURTENEY-HARRIS, Richard John resigned 2025-05-05; MCDONALD, Benjamin Mark resigned 2025-11-28

Group structure

The A1 Steam Locomotive Trust is the ultimate parent — holding 75%+ shares. This company sits inside their group.

🏛️

The A1 Steam Locomotive Trust

Corporate parent · holds 75-100% shares · board control

ultimate parent

⬇

21ST CENTURY STEAM LIMITED

This company · 11330729

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

Shareholders & ownership

1 active beneficial owner · dominant holder ≥75%

Name	Shares	Voting rights	Nature of control	Notified
The A1 Steam Locomotive Trust Corporate entity	75–100%	75–100%	board control75-100% shares · 75-100% voting · board control	26/04/2018

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 →

Similar companies

Active · Manufacturing · DL postcode area

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0537277 LIMITED→ 00537277 · est 1954 · no financials extracted	—	—	—	—	71y	—	—
106 WOODCRAFT LTD→ 17069754 · est 2026 · no financials extracted	—	—	—	—	—	—	—
24/7 CASTCRETE LTD→ 16966312 · est 2026 · no financials extracted	—	—	—	—	—	—	—
24/7 FABRICATION LTD→ 16966201 · est 2026 · no financials extracted	—	—	—	—	—	—	—
3RD HOUR LIMITED→ 09452414 · est 2015 · no financials extracted	—	—	—	—	11y	—	—
A & H SITE LINE BORING & MACHINING LTD→ 09743311 · est 2015 · no financials extracted	—	—	—	—	10y	—	—
A FAB LIMITED→ 10847647 · est 2017 · no financials extracted	—	—	—	—	8y	—	—
ABSORBENT PRODUCTS LIMITED→ 03532220 · est 1998 · no financials extracted	—	—	—	—	28y	—	—
ACCESS LADDERS (UK) LIMITED→ 02983939 · est 1994 · no financials extracted	—	—	—	—	31y	—	—
ACCURATE SYSTEMS LABELLING LIMITED→ 07299928 · est 2010 · no financials extracted	—	—	—	—	15y	—	—
ACL (STRUCTURAL STEEL) LIMITED→ 08351656 · est 2013 · no financials extracted	—	—	—	—	13y	—	—
ACORN ALARMS LTD→ 06448995 · est 2007 · no financials extracted	—	—	—	—	18y	—	—

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.

See pricing →

Company details

Statusactive

Typeltd

Incorporated2018-04-26

Jurisdictionengland-wales

Primary SIC30200 — SIC 30200

Registered office

Darlington Locomotive Works

9 Bonomi Way

Darlington

County Durham

DL3 0PY

England

Filing status

Accounts

Next due: 2026-12-31

Last made up to: 2025-03-31

Confirmation statement

Next due: 2026-05-09

Last: 2025-04-25