TXT In plain English
Company description
WITHSECURE LIMITED is a UK company whose Companies House status is “Active” and whose registered company type is “Private Limited Company”. Incorporated on 30 May 2002; registered for 24 years; registered office reported in ALTRINCHAM, CHESHIRE, UNITED KINGDOM. Its primary declared activity is 62090 · Other information technology service activities.
This BritDB profile also contains linked public records: 3 PSC records, 2 procurement records. 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
- WITHSECURE LIMITED
- Company number
- 04451698
- Company type
- Private Limited Company
- Status
- Active
- Country of origin
- United Kingdom
- Dissolution date
- Not supplied
- Accounts category
- FULL
- Mortgage charges
- 6 total · 0 outstanding · 6 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 December 2024Next accounts due
30 September 2026Last statement made up to
20 May 2026Next statement due
3 June 2027BritDB does not infer overdue status when the source does not state it.
03 Global legal identity
Legal Entity Identifier
WithSecure Limited
LEI 254900WQYI8310ED8908 · jurisdiction GB
- Legal form
- H0PO
- Entity category
- GENERAL
- Entity created
- 30 May 2002
- Initial LEI registration
- 4 February 2025
- LEI last updated
- 4 February 2026
- Next renewal
- 4 February 2026
- Managing LOU
- 5493001KJTIIGC8Y1R12
- Other legal names
- F-SECURE CYBER SECURITY LIMITED; MWR INFOSECURITY LIMITED; MWR INTERNET LIMITED
- Legal address
- Goat Yard, 20 Queen Elizabeth Street, London, SE1 2RJ, GB
- Headquarters address
- Goat Yard, 20 Queen Elizabeth Street, London, SE1 2RJ, GB
GLEIF Level 2 relationships
IS DIRECTLY CONSOLIDATED BY
From LEI 254900WQYI8310ED8908 to LEI 743700ATXLT0MFCHXT16
- Initial registration
- 4 February 2025
- Last updated
- 4 February 2026
- Next renewal
- 4 February 2026
- Validation sources
- ENTITY_SUPPLIED_ONLY
- Validation documents
- OTHER_OFFICIAL_DOCUMENTS
- Relationship periods
- Start: 2018-07-02T00:00:00.000Z; Type: RELATIONSHIP_PERIOD; Start: 2024-01-01T00:00:00.000Z; End: 2024-12-31T00:00:00.000Z; Type: ACCOUNTING_PERIOD
- Qualifiers
- Dimension: ACCOUNTING_STANDARD; Category: OTHER_ACCOUNTING_STANDARD
- Quantifiers
- Method: ACCOUNTING_CONSOLIDATION; Amount: 100.00
- Validation reference
- Not supplied
IS ULTIMATELY CONSOLIDATED BY
From LEI 254900WQYI8310ED8908 to LEI 743700ATXLT0MFCHXT16
- Initial registration
- 4 February 2025
- Last updated
- 4 February 2026
- Next renewal
- 4 February 2026
- Validation sources
- ENTITY_SUPPLIED_ONLY
- Validation documents
- OTHER_OFFICIAL_DOCUMENTS
- Relationship periods
- Start: 2018-07-02T00:00:00.000Z; Type: RELATIONSHIP_PERIOD; Start: 2024-01-01T00:00:00.000Z; End: 2024-12-31T00:00:00.000Z; Type: ACCOUNTING_PERIOD
- Qualifiers
- Dimension: ACCOUNTING_STANDARD; Category: OTHER_ACCOUNTING_STANDARD
- Quantifiers
- Method: ACCOUNTING_CONSOLIDATION; Amount: 100.00
- Validation reference
- Not supplied
LEI data provides global legal identity and source-reported relationships, not a credit or regulatory approval. BritDB links Level 1 identities only through GLEIF’s Companies House registration-authority identifier and exact company number; Level 2 parent and fund relationships and reporting exceptions are reproduced as supplied by GLEIF.
04 Public procurement
Contracts Finder awards
Penetration Test (IT Health Check)
DEPARTMENT FOR ENVIRONMENT, FOOD & RURAL AFFAIRS · ocds-b5fd17-4d1bd4c4-488e-4fd7-91e2-5e3122462bb0
- Supplier named in award
- MWR INFOSECURITY LIMITED
- Award value
- £300,000
- Contract period
- 3 October 2018 – 3 October 2020
- Published
- 17 July 2019
- Procedure
- Call-off from a framework agreement
- Main CPV
- 72000000
- Source release ID
- ocds-b5fd17-4d1bd4c4-488e-4fd7-91e2-5e3122462bb0-2019-07-17T10:47:30+01:00
Phishing simulations for NS&I employees.
National Savings & Investments · ocds-b5fd17-b1405554-ba50-42a6-afe4-b7e854ed70a2
- Supplier named in award
- MWR INFOSECURITY LIMITED
- Award value
- £0
- Contract period
- 29 August 2018 – 28 August 2020
- Published
- 30 January 2019
- Procedure
- Call-off from a framework agreement
- Main CPV
- 80600000
- Source release ID
- ocds-b5fd17-b1405554-ba50-42a6-afe4-b7e854ed70a2-2019-01-30T12:26:43Z
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.
05 Ownership and control
People with significant control
Mr Risto Kalevi Siilasmaa
- Owns 25% to 50% of shares
- Controls 25% to 50% of voting rights
- Nationality
- Finnish
- Country of residence
- Finland
- Notified
- 26 March 2026
- Appointment Verification End On: 9999-12-31T00:00:00Z
- Appointment Verification Start On: 2026-06-02T00:00:00Z
Withsecure Corporation
- Owns 75% or more of shares
- Country registered
- Finland
- Legal authority
- Finland
- Legal form
- Public Limited Company
- Place registered
- Finnish Trade Register
- Registration number
- 0705579
- Notified
- 2 July 2018
- Ceased
- 26 March 2026
Environmental Technologies Fund 2 L.P.
- Owns 25% to 50% of shares
- Controls 25% to 50% of voting rights
- Country registered
- England
- Legal authority
- Limited Partnerships Act 1907
- Legal form
- Limited Partnership
- Place registered
- England & Wales Company Register
- Registration number
- Lp015705
- Notified
- 6 April 2016
- Ceased
- 2 July 2018
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.
06 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.
07 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.
08 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.
09 Public procurement
Find a Tender links
No exact GB-COH link in this snapshot
Find a Tender did not explicitly identify this Companies House number in a procurement party. BritDB did not attempt a name-only match.
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.
10 Environmental register
Environment Agency waste registrations
No exact company-number registration linked
The licensed Environment Agency subset did not contain this exact Companies House number. BritDB did not attempt a name-only match.
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.
11 Nature of business
Standard Industrial Classification
12 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
0 procurement processes linked by exact GB-COH identifier.
Waste register
0 exact company-number registrations.
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.
13 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
- Company name
Previous name: F-SECURE CYBER SECURITY LIMITED
- Company name
Previous name: MWR INFOSECURITY LIMITED
- Incorporation
Company incorporated
14 Provenance
Sources for this profile
Identity, address, status, dates, SIC, previous names and mortgage totals.
Global legal identities linked through Companies House registration authority RA000585.
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.