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THALASSA ADVISORY LTD

Active
04711263·incorporated 2003-03-25

THALASSA ADVISORY LTD is an active UK private limited company, incorporated on 25 March 2003 at Companies House (number 04711263; OpenRegistry canonical ID GB-04711263-thalassa-advisory-ltd). Sophymarine's OpenRegistry classifies it under SIC 66190 (Activities auxiliary to financial intermediation n.e.c.), one of 7,698 active UK entities in that code and one of 1,093,852 active companies registered in London (postcode W2). Programmatic access via MCP at https://openregistry.sophymarine.com/mcp.

Status
Active
Type
Private Limited Company
Incorporated
2003-03-25
Registered Address
STANHOPE HOUSE, STANHOPE PLACE, LONDON, W2 2HH, UNITED KINGDOM
SIC
66190 — Activities auxiliary to financial intermediation n.e.c.
Country of origin
United Kingdom

Directors

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Shareholders

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Financials

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Filings

Check filing history of THALASSA ADVISORY LTD

Accounts

Last filed accounts made up to 2025-03-31. Next accounts due 2026-12-31. Financial year-end: 31/03. Filing class: TOTAL EXEMPTION FULL.

Confirmation statement

Last confirmation statement made up to 2026-03-28. Next confirmation statement due 2027-04-11.

Persons with significant control

THALASSA ADVISORY LTD has 3 persons with significant control on file:

  • Ms Eleftheria Karnessis born 1988 resident in Greece, Greek national. Notified 2022-09-05.
    • Owns 25–50% of shares
  • Mr Nicholas Karnessis born 1992 resident in Greece, Greek national. Notified 2022-08-19.
    • Owns 25–50% of shares
  • Mrs Angelique Karnessis born 1990 resident in Greece, Greek national. Notified 2022-09-05.
    • Owns 25–50% of shares

1 historical PSC record has ceased:

  • Mr Antonios Psarros born 1973 resident in Greece, Greek national. Notified 2016-04-06. Ceased 2022-08-19.
    • Owns 75% or more of shares

Previous names

THALASSA ADVISORY LTD has previously traded as:

  • HYDE PARK PROPERTY MANAGEMENT LIMITED (until 2023-01-12)

Similar UK companies

Other companies registered under SIC 66190 (Activities auxiliary to financial intermediation n.e.c.):

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Need real-time profile, officers, shareholders, financials or filing? Open the live profile at /company/gb/04711263.

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