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Companies House/Elstree, Borehamwood/Company profile

MAINSPRING HOLDINGS LIMITED

Active
03976035·incorporated 2000-04-13

MAINSPRING HOLDINGS LIMITED is an active UK private limited company, incorporated on 13 April 2000 at Companies House (number 03976035; OpenRegistry canonical ID GB-03976035-mainspring-holdings-limited). Sophymarine's OpenRegistry classifies it under SIC 64209 (Activities of other holding companies n.e.c.), one of 112,878 active UK entities in that code and one of 153 active companies registered in Elstree, Borehamwood, Hertfordshire (postcode WD6). Programmatic access via MCP at https://openregistry.sophymarine.com/mcp.

Status
Active
Type
Private Limited Company
Incorporated
2000-04-13
Registered Address
C/O SOBELL RHODES LLP THE KINETIC CENTRE, THEOBALD STREET, ELSTREE, BOREHAMWOOD, HERTFORDSHIRE, WD6 4PJ, UNITED KINGDOM
SIC
64209 — Activities of other holding companies n.e.c.
Country of origin
United Kingdom

Directors

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Shareholders

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Financials

Check financials of MAINSPRING HOLDINGS LIMITED

Filings

Check filing history of MAINSPRING HOLDINGS LIMITED

Accounts

Last filed accounts made up to 2024-12-31. Next accounts due 2026-09-30. Financial year-end: 31/12. Filing class: TOTAL EXEMPTION FULL.

Confirmation statement

Last confirmation statement made up to 2026-04-13. Next confirmation statement due 2027-04-27.

Persons with significant control

MAINSPRING HOLDINGS LIMITED has 1 person with significant control on file:

  • Mr Hubertus Kiesling born 1992 resident in Austria, Austrian national. Notified 2023-09-01.
    • Owns 75% or more of shares
    • Holds 75% or more of voting rights
    • Has the right to appoint and remove directors
  • The PSC's details have not yet been confirmed.

2 historical PSC records have ceased:

  • Dr Louise Kiesling born 1957 resident in England, Austrian national. Notified 2016-04-06. Ceased 2023-04-19.
    • Has significant influence or control
  • (unnamed). Notified 2023-08-30. Ceased 2023-09-01.

Similar UK companies

Other companies registered under SIC 64209 (Activities of other holding companies n.e.c.):

Other companies registered in Elstree, Borehamwood:

Need real-time profile, officers, shareholders, financials or filing? Open the live profile at /company/gb/03976035.

Source: Companies House Free Company Data, refreshed 2026-06-06. Official record: find-and-update.company-information.service.gov.uk.