
Services
Our Services
Our Services
Our Focus
Focused on providing solutions globally, we support clients with the formation of compliant, low-tax corporate structures across multiple jurisdictions.
Our services include company accounting and administration, international bank account introductions, immigration and residency support, as well as tax and estate planning designed to protect both assets and continuity.
Our services include company accounting and administration, international bank account introductions, immigration and residency support, as well as tax and estate planning designed to protect both assets and continuity.
We also advise internationally active business owners on navigating today’s complex tax and compliance landscape, offering strategic guidance wherever in the world their activities and obligations may extend.
We also advise internationally active business owners on navigating today’s complex tax and compliance landscape, offering strategic guidance wherever in the world their activities and obligations may extend.
COMPANY FORMATION
INTERNATIONAL BANKING
Estate & Inheritance Planning
FAMILY OFFICE SERVICES
INTERNATIONAL TAX PLANNING
Residency Programs in Greece

Services
[01]
Company Formation
We establish and structure companies across reputable international jurisdictions, aligned with your tax residence and long-term objectives. Callamus coordinates certified local partners while maintaining central oversight, ensuring compliance, operational integrity, and structural alignment within your broader strategy.

[01]
Company Formation
We establish and structure companies across reputable international jurisdictions, aligned with your tax residence and long-term objectives. Callamus coordinates certified local partners while maintaining central oversight, ensuring compliance, operational integrity, and structural alignment within your broader strategy.

[02]
International Banking
We assist clients in accessing reputable banking institutions within and outside the European Union. Every banking arrangement is assessed for regulatory suitability, compliance exposure, and long-term functionality, ensuring it supports the integrity of the overall structure.

[02]
International Banking
We assist clients in accessing reputable banking institutions within and outside the European Union. Every banking arrangement is assessed for regulatory suitability, compliance exposure, and long-term functionality, ensuring it supports the integrity of the overall structure.

[03]
Estate & Inheritance Planning
We advise on international estate structures designed to preserve assets and ensure orderly wealth transition across generations. Tax exposure, jurisdictional implications, and family considerations are assessed to secure continuity within a compliant framework.

[03]
Estate & Inheritance Planning
We advise on international estate structures designed to preserve assets and ensure orderly wealth transition across generations. Tax exposure, jurisdictional implications, and family considerations are assessed to secure continuity within a compliant framework.

[04]
Family Office Services
Callamus acts as a coordinating advisory layer for internationally active families. We align legal, tax, and financial advisors across jurisdictions, ensuring structural clarity, consistency, and long-term oversight.

[04]
Family Office Services
Callamus acts as a coordinating advisory layer for internationally active families. We align legal, tax, and financial advisors across jurisdictions, ensuring structural clarity, consistency, and long-term oversight.

[05]
International Tax Planning
We assess cross-border tax exposure, residency implications, and regulatory obligations before recommending structural adjustments. Our approach prioritises sustainability and compliance over aggressive optimisation.

[05]
International Tax Planning
We assess cross-border tax exposure, residency implications, and regulatory obligations before recommending structural adjustments. Our approach prioritises sustainability and compliance over aggressive optimisation.

[06]
Residency Programs in Greece
We advise international clients on Greek residency pathways and their associated tax implications. Beyond application procedures, our focus is structured integration within a compliant international framework.

[06]
Residency Programs in Greece
We advise international clients on Greek residency pathways and their associated tax implications. Beyond application procedures, our focus is structured integration within a compliant international framework.

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