TXT In plain English
Company description
CROWCON DETECTION INSTRUMENTS LIMITED is a UK company whose Companies House status is “Active” and whose registered company type is “Private Limited Company”. Incorporated on 6 May 1970; registered for 56 years; registered office reported in ABINGDON, OXFORDSHIRE. Its primary declared activity is 26511 · Manufacture of electronic measuring, testing etc. equipment, not for industrial process control.
This BritDB profile also contains linked public records: 1 PSC record, 20 trade marks, 3 procurement records, 1 waste registration. This description is assembled from public data, is not a reliability assessment, and should be checked against the cited sources before a legally significant decision.
Web facts are never added from a name match alone. Internet enrichment requires the exact Companies House ID in Wikidata, and ambiguous results are excluded.
01 Company overview
Identity and registration
- Official name
- CROWCON DETECTION INSTRUMENTS LIMITED
- Company number
- 00978878
- Company type
- Private Limited Company
- Status
- Active
- Country of origin
- United Kingdom
- Dissolution date
- Not supplied
- Accounts category
- FULL
- Mortgage charges
- 0 total · 0 outstanding · 0 satisfied
- Limited partnership members
- 0 general · 0 limited
A registered office is not necessarily a trading location. The address is reproduced from the Companies House bulk record and should be interpreted in that legal context.
02 Filing dates
Accounts and statements
Last accounts made up to
31 March 2025Next accounts due
31 December 2026Last statement made up to
9 September 2025Next statement due
23 September 2026BritDB does not infer overdue status when the source does not state it.
03 Supplier payments
Payment practices and performance
- Reporting period
- 1 April 2020 – 30 September 2020
- Filed
- 24 November 2020
- Shortest standard term
- 30 days
- Longest standard term
- 90 days
- E-invoicing offered
- No
- Supply-chain finance
- Not offered
- Payment codes
- Halma Business Code of Conduct
- Construction retentions
- No qualifying construction contracts
Complete reported payment fields
- Policy regime
- Regime-1
- Financial period started
- Not supplied
- Qualifying contracts
- Yes
- Payments made
- Yes
- Invoice value paid outside agreed terms
- £0
- Invoices paid in 31–60 days
- 58.0%
- Invoices unpaid due to dispute
- 0.0%
- Maximum contractual payment period
- 90 days
- Supplier-list charging policy
- No
- Supplier-list charges made
- No
Reported terms and dispute process
- Standard payment terms
30 Days for domestic suppliers, 60 + for overseas
- Dispute resolution process
No disputes in last 12 months.
Escalation
Direct communication with supplier
Mediation
Legal last resort
Earlier payment reports (4 shown)
- Average time not suppliedLate-payment rate not supplied
- 65.0 average days to pay6.0% outside terms
- 59.0 average days to pay8.0% outside terms
- Average time not suppliedLate-payment rate not supplied
This is a company-submitted statutory disclosure, not a credit rating. BritDB preserves the reporting period and links the report only through the Companies House number supplied by the official service. Percentages describe payments made during that period and may change in later reports.
04 Supply-chain transparency
Modern slavery statement
- Organisation
- CROWCON DETECTION INSTRUMENTS LIMITED
- Group submission
- Yes
- Parent organisation
- HALMA PUBLIC LIMITED COMPANY
- Statement period
- 1 April 2025 – 31 March 2026
- Approved
- 4 June 2026
- Sectors
- Healthcare and pharmaceuticals Other
Organisation structure
Covered in the statement
Policies
Covered in the statement
Risk assessment
Covered in the statement
Due diligence
Covered in the statement
Training
Covered in the statement
Goals and KPIs
Not reported as covered
Full statement information supplied to the registry
- Reported turnover band
- Over £500 million
- Years producing statements
- More than 5 years
- ILO indicators included
- Not answered
- Registry record updated
- 15 June 2026
Policies described
Freedom of workers to terminate employment Freedom of movement Freedom of association Prohibits any threat of violence, harassment and intimidation Prohibits the use of worker-paid recruitment fees Prohibits compulsory overtime Prohibits child labour Prohibits discrimination Prohibits confiscation of workers' original identification documents Provides access to remedy, compensation and justice for victims of modern slavery
Training described
Executive-level staff Procurement staff
Worker engagement and working conditions
Your suppliers Workers within your organisation Workers within your supply chain
Social audits
Audit conducted by your staff
Grievance mechanisms
Using anonymous whistleblowing services, such as a helpline or mobile phone app
Demonstrated progress
Whilst we haven't set formal KPI's we are committed on building against the progress made in previous years and continuing to evolve our practices and processes to address modern slavery risks.
Reported risks and mitigations
- Risk: At the Group level, we focussed on the risk of forced labour in supply chains in our companies in medium to high risk locations for modern slavery
- Area: Within your supply chains
- Tier: Tier 1 suppliers
- Group: Women Migrants Refugees Children
- Location: China Cyprus Hungary Israel India Poland Tunisia Dubai
- Mitigation: We will continue to monitor our operations in these areas and work to support our companies, e.g. through the rollout of our new Supplier Code of Conduct and renewed Human rights policy, and availability of Integrity Next.
A registry entry records what the organisation declared in its statement. It is not an independent audit. Group statements can cover several companies; BritDB preserves each exact source-supplied company-number link and excludes approver names and email addresses.
05 Data protection
ICO fee-payer registration
Crowcon Detection Instruments Limited
Registration ZA113709
- Registered from
- 27 April 2015
- Current end date
- 26 April 2027
This is a candidate association, not an official Companies House link. The ICO file supplies no company number. The organisation name and postcode uniquely matched this company in the current snapshot. BritDB excludes all DPO contact fields and does not publish unmatched personal entries.
06 Public procurement
Contracts Finder awards
Gas Detection Monitors
Devon & Somerset Fire & Rescue Service · ocds-b5fd17-4ffce38b-0aca-4b07-ac96-e09d952e595d
- Supplier named in award
- Crowcon Detection Instruments Ltd
- Award value
- £120,000
- Contract period
- 17 March 2025 – 16 March 2029
- Published
- 14 March 2025
- Procedure
- Call-off from a framework agreement
- Main CPV
- 35000000
- Source release ID
- ocds-b5fd17-4ffce38b-0aca-4b07-ac96-e09d952e595d-2025-03-14T12:15:31Z
RBGKEW/844-013 Medical Gas Detection Equipment
ROYAL BOTANIC GARDENS, KEW · ocds-b5fd17-e2eaf9dc-bf55-4e76-8dc6-804c28e34afe
- Supplier named in award
- CROWCON DETECTION INSTRUMENTS LIMITED
- Award value
- £35,000
- Contract period
- 1 June 2021 – 31 May 2024
- Published
- 12 July 2021
- Procedure
- Call-off from a dynamic purchasing system
- Main CPV
- 71000000
- Source release ID
- ocds-b5fd17-e2eaf9dc-bf55-4e76-8dc6-804c28e34afe-2021-07-12T10:06:25+01:00
The supplier link is exact, but the award remains buyer-published procurement data. BritDB requires the GB-COH identifier supplied in the Contracts Finder OCDS release and does not infer suppliers from similar names.
TM UK trade marks
Exact owner-name matches
XgardID
Owner Crowcon Detection Instruments Limited · classes 9
- Filed / designated
- 8 July 2016
- Valid until / renewal due
- 8 July 2026
FLASH CALIBRATION
Owner Crowcon Detection Instruments Limited · classes 9
- Filed / designated
- 24 April 2014
- Valid until / renewal due
- 24 April 2024
FLASH BUMP
Owner Crowcon Detection Instruments Limited · classes 9
- Filed / designated
- 24 April 2014
- Valid until / renewal due
- 24 April 2024
XGARDIQ
Owner Crowcon Detection Instruments Limited · classes 9
- Filed / designated
- 6 December 2013
- Valid until / renewal due
- 6 December 2023
GAS VU
Owner Crowcon Detection Instruments Limited · classes 9
- Filed / designated
- 7 January 2011
- Valid until / renewal due
- 7 January 2021
+VE SAFETY
Owner Crowcon Detection Instruments Limited · classes 9
- Filed / designated
- 2 October 2009
- Valid until / renewal due
- 2 October 2019
STAY-CLIR
Owner Crowcon Detection Instruments Limited · classes 2,9
- Filed / designated
- 8 June 2009
- Valid until / renewal due
- 8 June 2019
Stay-clIR
Owner Crowcon Detection Instruments Limited · classes 2,9
- Filed / designated
- 8 June 2009
- Valid until / renewal due
- 8 June 2019
IRMAX
Owner Crowcon Detection Instruments Limited · classes 9
- Filed / designated
- 5 March 2009
- Valid until / renewal due
- 5 March 2019
IREX
Owner Crowcon Detection Instruments Limited · classes 9
- Filed / designated
- 6 August 2008
- Valid until / renewal due
- 6 August 2018
XGARD
Owner Crowcon Detection Instruments Limited · classes 9
- Filed / designated
- 23 May 2008
- Valid until / renewal due
- 23 May 2018
CROWCON
Owner Crowcon Detection Instruments Limited · classes 9,37
- Filed / designated
- 1 June 2006
- Valid until / renewal due
- 1 June 2026
EIKON
Owner Crowcon Detection Instruments Limited · classes 9
- Filed / designated
- 21 March 2001
- Valid until / renewal due
- 21 March 2021
CROWCON TXGARD
Owner Crowcon Detection Instruments Limited · classes 9
- Filed / designated
- 5 January 1998
- Valid until / renewal due
- 5 January 2028
GAS-PRO
Owner Crowcon Detection Instruments Limited · classes 9
- Filed / designated
- 9 July 2010
- Valid until / renewal due
- Not supplied
GAS VU
Owner Crowcon Detection Instruments Limited · classes 9
- Filed / designated
- 9 July 2010
- Valid until / renewal due
- Not supplied
CROWCON TCGARD
Owner Crowcon Detection Instruments Limited · classes 9
- Filed / designated
- 5 January 1998
- Valid until / renewal due
- 5 January 2008
CROWCON FLAMGARD
Owner Crowcon Detection Instruments Limited · classes 9
- Filed / designated
- 5 January 1998
- Valid until / renewal due
- 5 January 2008
CROWCON SAFEGARD
Owner Crowcon Detection Instruments Limited · classes 9
- Filed / designated
- 9 October 1997
- Valid until / renewal due
- 9 October 2007
CROWCON
Owner Crowcon Detection Instruments Limited · classes 9
- Filed / designated
- 4 August 1986
- Valid until / renewal due
- 4 August 2007
This is an exact normalised company-name match, not a registrar-confirmed ownership link. Another legal entity can have the same or a very similar name. UKIPO data is a historical 2018 snapshot; verify the owner and current status before relying on it.
07 Ownership and control
People with significant control
Halma Plc
- Owns 75% or more of shares
- Controls 75% or more of voting rights
- Can appoint or remove directors
- Has significant influence or control
- Country registered
- United Kingdom
- Legal authority
- Companies Act 2006
- Legal form
- Public Limited Company
- Place registered
- Uk Companies House
- Registration number
- 00040932
- Notified
- 6 April 2016
PSC records are company-filed public-register information. When the exact same displayed individual name occurs at multiple companies, BritDB offers a non-indexed cross-reference page. It is a name match only, not proof that the records describe the same person. Service addresses and partial dates of birth are deliberately omitted.
08 Charity register
Charity Commission links
No exact company-number link in this snapshot
The Charity Commission extract did not explicitly associate this Companies House number with a charity. BritDB does not use a name-only match to fill the gap.
This company-level check covers the Charity Commission for England and Wales. Links are accepted only when the official extract supplies this exact company registration number. Scottish charities now have separate OSCR profiles, but OSCR’s bulk fields do not provide a Companies House number, so BritDB does not infer a company link.
09 Northern Ireland charity register
CCNI exact company links
No unambiguous company-number link found
The CCNI source number did not resolve uniquely to this Companies House record. BritDB did not use a name or address match.
CCNI publishes company numbers without a jurisdiction prefix. BritDB links only when the plausible padded UK and NI candidates resolve to exactly one Companies House company.
10 Sanctions screening
UK Sanctions List
No exact business-registration-number link found
The imported UK Sanctions List did not supply this Companies House number as a UK-linked business identifier. BritDB did not attempt a name-only match.
No exact link is not sanctions clearance. UK restrictions can apply through ownership or control even where an entity is not separately named. Always use the current official list and obtain appropriate advice for a legally significant decision.
11 Public procurement
Find a Tender links
These links use only the GB-COH identifier supplied in the procurement record. A company may have other public-sector work that is absent, older, below publication thresholds or published without a Companies House identifier.
12 Environmental register
Environment Agency waste registrations
This is a privacy-reduced, exact-company subset. The full official register also includes sole traders and applicants without a matching Companies House number. Check the current Environment Agency register before relying on registration status.
13 Nature of business
Standard Industrial Classification
14 Connected public record
Checks beyond the company register
Charity Commission
0 exact company-number links.
Northern Ireland charities
0 unambiguous company-number links.
Public contracts
1 procurement process linked by exact GB-COH identifier.
Waste register
1 exact company-number registration.
Corporate notices
The Gazette is not yet connected.
UK Sanctions List
No exact business-registration-number link in this report.
A checked source with no exact link is not a clean bill of health. Unchecked sources remain unknown, while sanctions may also apply through ownership or control of a listed person or entity.
15 Record timeline
Dates in the bulk record
- Confirmation statement
Latest confirmation statement made up to this date
- Accounts
Latest accounts made up to this date
- Incorporation
Company incorporated
16 Provenance
Sources for this profile
Identity, address, status, dates, SIC, previous names and mortgage totals.
Statutory supplier-payment reports linked by the exact source-supplied Companies House number.
Annual statement summaries linked by exact source company number.
Privacy-reduced candidate associations based on a unique exact name-and-postcode match.
Historic awards linked by exact source-supplied GB-COH company identifier.
Current and ceased significant-control records joined by exact company number.
Daily England and Wales extract matched only by the official company registration number.
Daily CCNI export with company links only where the source number resolves unambiguously.
Complete FCDO list checked by exact UK-linked business registration number.
Procurement parties checked only through exact GB-COH identifiers.
Licensed subset linked only by exact Companies House number.
Financial regulation and licences.
Companies House, Charity Commission, OSCR and UK Sanctions List information is public-register data. BritDB reproduces and organises it with source-specific limits; official external links are kept on the dedicated source pages.