Investment management services supporting clients seeking structured portfolio management and long-term investment strategies across global financial markets. Through disciplined portfolio construction and experienced oversight, clients gain access to multi-asset investment strategies implemented within transparent, well-governed investment frameworks.
Discretionary Portfolio Management
Global Financial Markets
Equities, Fixed Income & Multi-Asset Strategies
Client Base
Private Clients, Professional Investors, Family Offices and Institutional Market Participants
Market Coverage
Access to diversified investment strategies across global financial markets through structured portfolio management.
Equities
Investment exposure across major global equity markets, including the UK, APAC, Europe and the United States
Fixed Income
Government and corporate bond strategies across developed credit markets
Multi-Asset Portfolios
Blended portfolios combining multiple asset classes across varying risk profiles
At a Glance
- Discretionary portfolio management
- Global multi-asset investment strategies
- Private, professional and institutional clients
- Segregated portfolio structures available
- FCA-regulated framework
Service Leadership

Angelos Sigalas
Head of Asset Management – Asset Management
Angelos Sigalas leads the Asset Management service at GIS UK and oversees portfolio management, investment strategy implementation and client portfolio oversight within the firm’s regulated investment framework.
Service Detail
The Asset Management service enables clients to access discretionary portfolio management and structured investment strategies across global financial markets. Through disciplined portfolio construction and experienced investment oversight, GIS UK supports clients seeking diversified investment exposure across multiple asset classes.
Investment strategies may include equities, fixed-income instruments, and multi-asset portfolios designed to reflect varying investment objectives and risk parameters. Portfolio management is delivered on a discretionary basis where appropriate, allowing the investment team to implement portfolio adjustments within agreed mandates.
Strategies may be implemented through segregated portfolio structures, allowing clients to maintain transparency over holdings and portfolio activity. GIS UK can work with existing custodians or facilitate relationships with recognised third-party custodial providers, depending on client requirements.
The firm also supports specialised strategies, including absolute return approaches designed to operate across changing market conditions. These strategies may utilise derivatives and index instruments within defined risk management frameworks.
Clients benefit from the experience of investment professionals operating across global financial markets, supporting disciplined portfolio management and long-term investment strategy implementation.
Key Features
Portfolio Construction
Structured portfolio design across equities, fixed income and multi-asset strategies
Discretionary Management
Portfolio management implemented within agreed client mandates
Segregated Accounts
Portfolio structures supporting transparency and asset ownership
Custodian Flexibility
Ability to work with existing custodians or establish new relationships
Strategy Diversification
Access to multi-asset and absolute return investment approaches
Delivery & Governance
How the service is delivered
- Client requirements are established through onboarding and suitability documentation processes.
- Portfolio mandates are agreed prior to investment activity and implemented within defined investment frameworks.
- Portfolio monitoring and management are conducted in line with established investment mandates.
- Ongoing reporting and client communication support transparency throughout the investment relationship.
Governance and regulation
- The service operates under FCA regulatory permissions within defined portfolio management and investment governance frameworks.
- Investment activity is conducted within established risk management procedures and internal oversight structures.
- Processes are regularly reviewed to ensure alignment with regulatory requirements and evolving market standards.
Speak To The Service Team
If you would like to discuss Asset Management or speak directly with the service lead, please contact us.

