About Us

The business of Klisiaris & Klissiaris Lda was acquired by The Sovereign Group in 2020.

Sovereign opened its first office in Gibraltar in 1987 and has since grown into one of the largest independent corporate and trust service providers with a presence in over 20 jurisdictions around the world, including Portugal. We currently manage over 20,000 structures for a wide variety of clients – companies, entrepreneurs, private investors or high net worth individuals (HNWIs) and their families – and have assets under administration in excess of £20 billion.

Sovereign’s core services have always centred on Private Client, Corporate Services and Retirement Planning.

Our Portugal based team of certified accountants and administrators are one of the principal providers of tax assistance for resident and non-resident foreigners in the country. We are well placed to continue the fiscal support provided by Klisiaris & Klissiaris Lda.

Clients of the Sovereign Group can also take advantage of a wide range of services offered by Group Companies such as;

  • Sovereign Pension Services (Gibraltar) Limited, administering approximately 5,000 pension members, both occupational and personal.
  • Sovereign Trust International Limited, acting as a professional trustees.
  • Sovereign Insurance Services Limited, licenced as a general insurance broker, providing bespoke corporate and private client insurance solutions.

Click here to learn about Sovereign’s network and services.

Please email our Portugal team with any queries serviceinfo@sovereigngroup.com


Contact Us


Parque Empresarial Algarve,
Lote 8 Porta 21,
8400-431 Lagoa,

Call Us

+351 282 340 480
+351 282 342 259

Email Us


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