A Targeted Approach To Fiduciary Services

Artemis offers fiduciary services such as trust and corporate administration, which are underpinned by a philosophy of service and agility. We take a global view, navigating international regulations, compliance requirements and multi-jurisdictional structures for modern families. 


Trusts are a highly flexible and a well proven method of confidential succession, wealth and inheritance planning.

Working with your preferred advisors, Artemis can help construct various types of trust carefully tailored to suit both private and corporate client requirements.

Trusts in Guernsey


The use of companies, either stand-alone or as an integral part of more complex structures, provides many planning and risk-mitigating opportunities. Artemis provides a full company incorporation and administration service, including provision of corporate or personal directors, company secretary, registered office, nominee shareholding facilities and accountancy services.

Companies in Guernsey

Other Services 

We also provide a wide range of financial services.

Our Other Services

About Us

Our Board of Directors have a wealth of knowledge and experience in international trust and corporate administration and are committed to providing carefully tailored and competitive solutions.



Debbie Guillou

Chief Executive Officer

Debbie joined Artemis as Chief Executive Officer in September 2019. Debbie is a fellow of the Chartered Institute of Management Accountants and a Chartered Director with experience in wealth management, insurance and fund management as well as utilities and healthcare. Debbie is also a non-executive director on the boards of the Office of the Financial Services Ombudsman in Guernsey and Jersey which collectively operate under the name of the Channel Islands Financial Ombudsman. Debbie was educated in Guernsey and has an honours degree in accountancy from the University of Stirling.

Ian Domaille


Ian is a Director and a founding shareholder of Artemis. Prior to that he was a partner in a mid-sized firm of Chartered Accountants. He has over 30 years’ experience in the finance industry in Guernsey and is a member of both the Institute of Chartered Accountants in England and Wales and the Society of Trust and Estate Practitioners. Ian’s clients are principally high net worth individuals from across the globe. He is involved in planning aspects for many different types of assets and works with major firms of lawyers, accountants and banks, as well as niche service providers. Ian capitalises on the breadth of his professional relationships to assist clients in pursuing the most appropriate solution to their needs. Ian also sits on a number of boards including those of listed companies, as a non–executive director and is involved in regulated financial institutions in several jurisdictions. Ian has served as a Member of the Financial Advisory Committee of the European Patent Office since June 2017.

Keren Bowen


Keren is a Director and joined Artemis in 2007. Keren has over 20 years' experience working in the finance industry in the administration of trusts and corporate entities, and heads up a busy administration team. During this time, Keren has gained extensive experience dealing with complex tax structuring, working on large financing transactions and has been involved in many asset acquisitions and disposals, including super prime real estate, super yachts and private aircraft. Keren also has experience in the operation of these assets including property refurbishment works, dealing with matters such as global staff recruitment, employment and crew employment matters, and contractual matters. Keren has worked with a range of ultra high net worth individuals and has experience dealing with family offices, the drafting and controlling of large client budgets and Estate distribution. Keren also deals with contentious matters, including mediation. She holds a Master's Degree in Corporate Governance and is an Associate of the Institute of Chartered Secretaries and Administrators.

Ian Clarke


Ian joined Artemis in 2011 and was appointed a Director in 2015. He is a member of the Society of Trust and Estate Practitioners, and has over 26 years' experience in the finance industry in Guernsey including wealth management, the administration of international trusts, corporate entities and regulated funds. He previously held the position of managing director of a fund administrator in Guernsey, and has also sat on the boards of a number of funds and companies, some of which were listed on recognised Stock Exchanges. Ian has experience in developing early stage natural resources and energy-focused companies into larger private companies and through to Initial Public Offerings. With his Fund Management experience, the administration of larger private companies with a large shareholder base and listed entities is an area in which he has built expertise in dealing with multi-jurisdictional investors. Ian has experience in the ownership and operation of private yachts and private aircraft, including crew recruitment and contractual matters.

Maggie Hannis


Maggie has worked in Trust and Company administration for over 17 years. She has worked with a range of high net worth individuals and family offices, and has a detailed knowledge of the operation and management of trust and corporate vehicles. Maggie also has experience working on contentious trust issues. Maggie is a member of both the Association of Chartered Certified Accountants and the Society of Trust Estate Practitioners.

Mark Bright

Independent Non-Executive Director

Mark joined Artemis in January 2020 as an independent non-executive director. He has over forty years’ experience in financial services, most of which he spent in private wealth. He has lived and worked in the UK, the Middle East and the Channel Islands for some of the world’s leading international banking groups. Mark holds an Honours Degree in Financial Services and is an Associate of the Chartered Institute of Bankers. He served two terms as Chairman of the Association of Guernsey Banks and was a Council Member of the Guernsey International Business Association for eleven years. Mark currently sits on the FinTech Strategy Group and is a non-executive director on the boards of several other locally regulated firms.