The Governance RegisterEdition 2026 · Compiled 12th July 2026

Thalassa Advisory LTD

Company 04711263 Active

Company details

Number04711263
StatusActive
TypePrivate Limited Company
Incorporated25/03/2003
AddressSTANHOPE HOUSE, STANHOPE PLACE, LONDON, W2 2HH
Accounts next due31/12/2026
Accounts last made up31/03/2025

Industry (SIC)

66190 - Activities auxiliary to financial intermediation n.e.c.68320 - Management of real estate on a fee or contract basis70229 - Management consultancy activities other than financial management82110 - Combined office administrative service activities

Ownership - persons with significant control (4)

  • Mr Nicholas Karnessis Greek
    ownership of shares 25-50%
  • Ms Eleftheria Karnessis Greek
    ownership of shares 25-50%
  • Mrs Angelique Karnessis Greek
    ownership of shares 25-50%
  • Mr Antonios Psarros ceased Greek
    ownership of shares 75-100%

Officers (6)

  • GMS FC Limited Corporate-secretary · appointed 2024
  • Santamaria, Peter Benedict Director · appointed 2024
  • Clarke, Charles Lawrence Somerset, Sir Director · appointed 2022
  • Psarros, Antonios Former Director · appointed 2014 · resigned 2022
  • Abrahams, Mark David Former Secretary · appointed 2003 · resigned 2024
  • Papakonstantinou, Klearchos Former Director · appointed 2003 · resigned 2014

Directors and officers on the Companies House record, current and former.

Report an error in this record - let us know.