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CASTELLUM LTD

Active
10147695·incorporated 2016-04-26

CASTELLUM LTD is an active UK private limited company, incorporated on 26 April 2016 at Companies House (number 10147695; OpenRegistry canonical ID GB-10147695-castellum-ltd). Sophymarine's OpenRegistry classifies it under SIC 99999 (Dormant Company), one of 111,264 active UK entities in that code and one of 1,093,852 active companies registered in London (postcode SE15). Programmatic access via MCP at https://openregistry.sophymarine.com/mcp.

Status
Active
Type
Private Limited Company
Incorporated
2016-04-26
Registered Address
OFFICE Q, 35 ASTBURY ROAD, LONDON, SE15 2NL, ENGLAND
SIC
99999 — Dormant Company
Country of origin
United Kingdom

Directors

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Shareholders

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Financials

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Filings

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Accounts

Last filed accounts made up to 2025-04-30. Next accounts due 2027-01-31. Financial year-end: 30/04. Filing class: DORMANT.

Confirmation statement

Last confirmation statement made up to 2025-04-25. Next confirmation statement due 2026-05-09.

Persons with significant control

CASTELLUM LTD has 1 person with significant control on file:

  • Alchemy Tax Llp (United Kingdom reg. So308315). Notified 2026-05-18.
    • Owns 75% or more of shares

3 historical PSC records have ceased:

  • Mr Frank Cross born 1984 resident in Scotland, Czech national. Notified 2020-04-01. Ceased 2026-05-18.
    • Owns 75% or more of shares
    • Holds 75% or more of voting rights
  • Mr Frank Cross born 1984 resident in England, Czech national. Notified 2017-04-25. Ceased 2020-04-01.
    • Owns 75% or more of shares
  • Castellum Llc (Wyoming, Usa reg. 2019-000856131). Notified 2020-04-01. Ceased 2020-04-01.
    • Owns 75% or more of shares

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Need real-time profile, officers, shareholders, financials or filing? Open the live profile at /company/gb/10147695.

Source: Companies House Free Company Data, refreshed 2026-05-01. Official record: find-and-update.company-information.service.gov.uk.