KNAUF INSULATION LIMITED
According to the company’s own website, KNAUF INSULATION LIMITED manufactures and supplies glass mineral wool and rock mineral wool insulation products for residential, commercial and industrial construction, operating manufacturing sites at St Helens, Cwmbran and Queensferry. It trades under the Knauf Insulation brand, part of the wider, privately held Knauf Group, a German family-owned manufacturer of building materials headquartered in Iphofen, Bavaria. KNAUF INSULATION LIMITED’s shares are not admitted to trading on any stock exchange. Companies House filing records show it lodged full statutory accounts for the year ended 31 December 2024 on 19 September 2025, and for the year ended 31 December 2023 on 8 October 2024; no independently verified turnover or employee-count figures specific to this legal entity were identified during research.
Registration details
Company overview
KNAUF INSULATION LIMITED is a private limited company registered in England and Wales under company number 01926842, according to Companies House. Incorporated on 27 June 1985, it has traded under its current name since 18 December 2002, having previously been known as KNAUFALCOPOR LTD. (2002), OWENS CORNING ALCOPOR UK LTD (2000–2002), OWENS-CORNING BUILDING PRODUCTS (U.K.) LIMITED (1994–2000) and PILKINGTON INSULATION LIMITED (1985–1994). The company is recorded as active, with its registered office at Stafford Road, St. Helens, Merseyside, WA10 3LZ. Companies House classifies its principal activities under SIC codes 23140, manufacture of glass fibres, and 23990, manufacture of other non-metallic mineral products not elsewhere classified.
Officers
38
Directors and officers of KNAUF INSULATION LIMITED
Companies House records six active officers of KNAUF INSULATION LIMITED and 32 resigned officers. The current directors are Dominique François Henri Bossan (French nationality, resident in Belgium; appointed 16 February 2024), David Charles Ducarme (Belgian nationality, resident in Belgium; appointed 1 September 2021), Lisa Flaherty (British nationality, resident in the United Kingdom; appointed 9 December 2024), Neil James Hargreaves (British nationality, resident in England; appointed 1 May 2011) and Alexandre Laurent (French nationality, resident in the United Kingdom; appointed 15 March 2019); Michael James Bignell serves as Company Secretary, appointed 1 September 2021. Companies House notes that the identities of all active officers have been verified by Law Debenture Corporate Services Limited, an Authorised Corporate Service Provider supervised by HMRC. Among the resigned officers, Carl Rudolf Thies Knauf (German nationality) served as a director until his resignation on 21 August 2018. This overview reflects Companies House officer data reviewed 24 September 2026.
Recent officer changes
- Lisa Flaherty appointed Director, 9 December 2024 (Companies House).
- Dominique François Henri Bossan appointed Director, 16 February 2024 (Companies House).
- David Charles Ducarme appointed Director and Michael James Bignell appointed Secretary, both 1 September 2021 (Companies House).
Data availability
Classification: Full. Companies House publishes current and historical officer appointment and resignation dates together with nationality and country of residence for KNAUF INSULATION LIMITED’s directors; occupation, as distinct from legal role, and residential addresses are not separately reported. Nationality is not disclosed for the Company Secretary, consistent with Companies House’s practice of not requiring this field for secretaries.
Sources
- Companies House – Officers list, company number 01926842
Registry feed — rows exactly as filed with Companies House, including entries the profile above does not cover.
Group Structure
Group structure of KNAUF INSULATION LIMITED
KNAUF INSULATION LIMITED is not recorded as an independent company. Company shareholder register data associated with this profile, verified 22 September 2026, names Knauf Insulation Holding GmbH (Iphofen, Germany; Amtsgericht Würzburg, HRB 8931) as the company’s immediate parent, holding 100% of its issued ordinary share capital. This shareholding is not currently corroborated by Companies House’s persons-with-significant-control register, which records no active registrable controlling party for KNAUF INSULATION LIMITED (see Data availability). Knauf Insulation Holding GmbH is itself part of the wider, privately held Knauf Group, a German family-owned manufacturer of building materials headquartered in Iphofen, Bavaria; no further verified ultimate parent entity above Knauf Insulation Holding GmbH could be confirmed through publicly accessible sources during this research. No verified direct or indirect subsidiaries of KNAUF INSULATION LIMITED were identified. Information reviewed 24 September 2026.
Verified corporate relationships
| Entity | Country | Registration number | Relationship | Ownership | Status | Information date |
|---|---|---|---|---|---|---|
| Knauf Insulation Holding GmbH | Germany | HRB 8931 (Amtsgericht Würzburg) | Possible immediate parent | 100% of ordinary share capital (per shareholder register data; not corroborated by UK PSC filings) | Active | Verified 22 Sep 2026 |
Data availability
Classification: Partial. Company shareholder register data indicates a single 100% corporate shareholder in Germany, but this has not been independently corroborated through Companies House’s persons-with-significant-control filings, which currently record no registrable controlling party for KNAUF INSULATION LIMITED; the underlying German commercial register (Handelsregister) shareholding details for Knauf Insulation Holding GmbH were not accessible without a paid data service and could not be independently verified.
Sources
- Companies House – Persons with Significant Control register, company number 01926842
- Companies House – Company overview and filing history, company number 01926842
- Company shareholder register data, verified 22 September 2026
- Northdata – Knauf Insulation Holding GmbH company record, Amtsgericht Würzburg HRB 8931
Registry feed — rows exactly as filed with Companies House, including entries the profile above does not cover.
Gebr. Knauf KG
Germany
Frequently asked questions
What does KNAUF INSULATION LIMITED do?
KNAUF INSULATION LIMITED (company number 01926842) is a private limited company registered in England and Wales, incorporated 27 June 1985, registered office at Stafford Road, St. Helens, Merseyside WA10 3LZ; Companies House classifies it under SIC codes 23140 (manufacture of glass fibres) and 23990 (manufacture of other non-metallic mineral products), and it manufactures glass and rock mineral wool insulation products, trading as Knauf Insulation.
Who owns KNAUF INSULATION LIMITED?
Company shareholder register data verified 22 September 2026 records Knauf Insulation Holding GmbH (Germany) as sole shareholder holding 100% of ordinary shares, though this is not corroborated by Companies House's persons-with-significant-control register, which currently shows no registrable controlling person.
Who is KNAUF INSULATION LIMITED's UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for KNAUF INSULATION LIMITED is itself a company rather than a natural person, so no Ultimate Beneficial Owner (UBO) is identified at this level; establishing one would require tracing the ownership of each shareholding company in turn.
What is KNAUF INSULATION LIMITED's company registration number?
KNAUF INSULATION LIMITED's registration number is 01926842, filed with Companies House in United Kingdom. Its current status on the register is active.
Is KNAUF INSULATION LIMITED still an active company?
KNAUF INSULATION LIMITED's status on Companies House is listed as active.
When was KNAUF INSULATION LIMITED incorporated?
KNAUF INSULATION LIMITED was incorporated on 27 June 1985, according to Companies House.
What is KNAUF INSULATION LIMITED's registered address?
The registered address on file for KNAUF INSULATION LIMITED is ST. HELENS, United Kingdom.
What legal structure is KNAUF INSULATION LIMITED registered as?
KNAUF INSULATION LIMITED is registered as a Private limited company (Ltd.) in United Kingdom.
Is KNAUF INSULATION LIMITED listed on a stock exchange?
KNAUF INSULATION LIMITED's shares are not admitted to trading on any stock exchange; it is a privately held company.
Who are the officers/directors of KNAUF INSULATION LIMITED?
Companies House records six active officers of KNAUF INSULATION LIMITED as of 24 September 2026, including directors Dominique François Henri Bossan, David Charles Ducarme, Lisa Flaherty, Neil James Hargreaves and Alexandre Laurent, and Company Secretary Michael James Bignell.
Does KNAUF INSULATION LIMITED have a parent company or subsidiaries?
Company shareholder register data names Knauf Insulation Holding GmbH (Iphofen, Germany) as KNAUF INSULATION LIMITED's immediate parent holding 100% of shares, part of the wider, privately held Knauf Group; this relationship is not corroborated by Companies House's PSC filings, which record no registrable controlling party, and no further verified ultimate parent was identified.
Can Zavia monitor changes to KNAUF INSULATION LIMITED's ownership over time?
This profile reflects a point-in-time snapshot from Companies House. Zavia's monitoring API can track changes to KNAUF INSULATION LIMITED's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access KNAUF INSULATION LIMITED's data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including United Kingdom, so records like KNAUF INSULATION LIMITED's registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from Companies House and was last synced on 25 September 2026.