DEUTERIUM HEATING LTD

🏛️Establishedactive
12566949 · ltd · incorporated 2020-04-21
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 Dec 2024
Net worth
£-35.2k
book net assets
Opportunity
70/100
Strong
🔔
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What this business does
Primary activity: Environmental consulting activities
Sector: Professional, scientific & technical
Investor take
Pass (distressed without resilience)
Distressed active trading company — structural issues outweigh the discount.

Opportunity 70/100 (strong), bankability 75/100. Share purchase looks the cleaner deal structure. Most likely exit: distressed disposal / insolvency (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
75
Lenders & charges
Confirmed no charges registered
85
Directors & officers
3 officers (2 active, 3 linked, 3 with DOB)
90
Ownership & PSC
1 active PSC(s) of 2 total, 2 with control declared
90
Director network
10 connected companies via shared directors
75
Filing history
24 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
70/100Strong
PassWatchWorth a lookStrongExceptional 

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

Business quality
65
Adequate — check latest filings for context.
Acquirability
50
Some acquirability indicators.
Risk profile
82
Few red flags.
Signal strength
90
Good data coverage for analysis.

Signals from accounts

Derived from iXBRL accounts · FRS 105 (micro)
Negative net assets
Liabilities exceed assets by £35,156

Key financials

2 years extracted from filed iXBRL accounts
Cash
Net Worth
-£35k
~ YoY
Current Assets
£15k
~ YoY
Current Liabilities
-£35k-£25k-£15k-£5k£5k£15kDec 2023Dec 2024

Hover to see exact values · click legend to toggle series

Financials

Extracted from Companies House accounts · FRS 105 (micro)
Metric2024-12-312023-12-31
Total assets£-35.2k£-35.0k
Current assets£15.1k£15.2k
Cash£15.1k
Debtors£34
Net assets£-35.2k£-35.0k

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
0
filings
Last 90 days
0
filings
Last 180 days
1
filing
  • 1 accounts
Counts from Companies House filing history.
Corporate timeline (23 events)Click to expand
  1. 2025-12-22
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  2. 2025-01-03
    📄
    termination-director-company-with-name-termination-date
    officers · TM01
  3. 2024-12-31
    MAYNARD, Andrew resigned
    director
  4. 2024-12-20
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  5. 2024-11-22
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  6. 2024-11-22
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  7. 2023-11-14
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  8. 2023-04-17
    📄
    appoint-person-director-company-with-name-date
    officers · AP01
  9. 2023-04-17
    📄
    appoint-person-director-company-with-name-date
    officers · AP01
  10. 2023-03-15
    CONSTABLE, Jon appointed
    director
  11. 2023-03-15
    MAYNARD, Andrew appointed
    director
  12. 2023-03-13
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  13. 2022-10-26
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  14. 2022-08-11
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  15. 2022-08-01
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  16. 2021-12-29
    📄
    change-account-reference-date-company-current-shortened
    accounts · AA01
  17. 2021-12-19
    📄
    accounts-with-accounts-type-micro-entity
    accounts · AA
  18. 2021-10-04
    📄
    notification-of-a-person-with-significant-control
    persons-with-significant-control · PSC02
  19. 2021-10-04
    📄
    cessation-of-a-person-with-significant-control
    persons-with-significant-control · PSC07
  20. 2020-09-22
    📄
    capital-allotment-shares
    capital · SH01
  21. 2020-04-21
    🏢
    Company incorporated
    As DEUTERIUM HEATING LTD
  22. 2020-04-21
    JACKSON, Christopher Edward appointed
    director
  23. 2020-04-21
    📄
    incorporation-company
    incorporation · NEWINC

Owner dependency

58/100
Moderate — manageable with handover

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

FACTORS
  • +Two-director setup: Only two active directors — typical of owner-managed SMEs but limits succession.

Succession & seller-readiness

36/100
Weak signal

Limited succession signal. Not a near-term off-market candidate.

SIGNALS
  • secondaryTwo-director governance: Small-team governance. Succession depth is thin but not absent.

Red flags

1 low
Multiple registered office changes
low

Multiple address changes in a short period can indicate operational instability or admin disorder.

Group structure

Protium Green Solutions Limited is the ultimate parent — holding 75%+ shares. This company sits inside their group.

🏛️
Protium Green Solutions Limited
Corporate parent · holds 75-100% shares · board control
ultimate parent
DEUTERIUM HEATING LTD
This company · 12566949

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%
NameSharesVoting rightsNature of controlNotified
Protium Green Solutions Limited
Corporate entity
75100%
75–100%board control75-100% shares · 75-100% voting · board control · firm interest16/08/2021
1 historic (ceased) PSC
  • Mr Christopher Edward Jacksonceased 16/08/2021· 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

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
Incorporated2020-04-21
Jurisdictionengland-wales
Primary SIC74901 — Environmental consulting activities

Registered office

180 Borough High Street
London
SE1 1LB
England

Filing status

Accounts
Next due: 2026-09-30
Last made up to: 2024-12-31
Confirmation statement
Next due: 2026-08-30
Last: 2025-08-16

Officers (2 active · 1 resigned)

CONSTABLE, Jon
director · ~48y · appointed 2023-03-15
View their other companies + combined net worth →
Active
JACKSON, Christopher Edward
director · ~36y · appointed 2020-04-21
View their other companies + combined net worth →
Active
MAYNARD, Andrew
director · ~42y · appointed 2023-03-15 · resigned 2024-12-31
Resigned

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

Recent filings (24 total)

accounts-with-accounts-type-micro-entity
accounts · AA
2025-12-22
confirmation-statement-with-no-updates
confirmation-statement · CS01
2025-08-27
termination-director-company-with-name-termination-date
officers · TM01
2025-01-03
accounts-with-accounts-type-total-exemption-full
accounts · AA
2024-12-20
change-registered-office-address-company-with-date-old-address-new-address
address · AD01
2024-11-22
change-registered-office-address-company-with-date-old-address-new-address
address · AD01
2024-11-22
confirmation-statement-with-no-updates
confirmation-statement · CS01
2024-09-26
accounts-with-accounts-type-total-exemption-full
accounts · AA
2023-11-14
confirmation-statement-with-updates
confirmation-statement · CS01
2023-09-18
appoint-person-director-company-with-name-date
officers · AP01
2023-04-17
appoint-person-director-company-with-name-date
officers · AP01
2023-04-17
change-registered-office-address-company-with-date-old-address-new-address
address · AD01
2023-03-13
change-registered-office-address-company-with-date-old-address-new-address
address · AD01
2022-10-26
confirmation-statement-with-updates
confirmation-statement · CS01
2022-08-18
accounts-with-accounts-type-total-exemption-full
accounts · AA
2022-08-11