Sonia Bourgaize

Sonia Bourgaize 

Managing Director - Guernsey

Trust and Corporate

Guernsey

Sonia is the Managing Director of Collas Crill Trust in Guernsey and brings three decades of financial services experience to the private wealth team.

She is an Associate of the Institute of Chartered Secretaries and Administrators, holds the Institute of Directors (IoD) Diploma in Company Direction and is a member of the IoD.

Sonia joined Collas Crill Trust in January 2018 from an independent trust company in Guernsey where she had served on the Board for 10 years. She has a wealth of experience in the local fiduciary sector dealing with ultra-high-net-worth private clients. During her career Sonia has looked after large, complex structures which have spanned multiple jurisdictions for multi-generational families. She has specialised in structures for entrepreneurial clients and has expertise in private equity, corporate governance and the management of non-traditional assets.

3 Apr 2025

How Guernsey’s private trustee structures can protect assets

Greta Pender contributed to an article in Spear's magazine, in association with Guernsey Finance. In the article she, along with Rupert Pleasant, Chief Executive of Guernsey Finance, and Kerrie Le Tissier, Country Head of Highvern's Guernsey office, comm...

17 Jul 2023

The proposed inequality tax: A critical analysis

In recent years, income inequality has become an increasingly pressing issue. The gap between the wealthiest individuals and the rest of the world's population has widened, leading to concerns about the impact of inequality on social and economic outcome...

10 Jul 2023

Collectible cars: Investment or lifestyle asset?

Investing in cars has long been a passion for automotive enthusiasts. While many people enjoy classic cars for their timeless beauty and historical significance, others see them as lucrative investment opportunities. This is evident in the highest price ...

23 Jun 2023

Virtual asset succession

What is the state of current cryptocurrency regulation and what are the implications for families who hold cryptocurrencies as part of their wealth? Virtual Assets have gained widespread popularity in recent years as a new asset class that promises to re...

19 Jun 2023

Comply or complain?

Let's be honest, there are not many people who enjoy giving out their personal information, let alone the piles of paperwork they have to complete every time they conclude a transaction.  In a 2022 study released by global identity verification gian...

14 Jun 2023

The strategic role of trusts in estate planning and financial planning

There are many variables at play in wealth preservation planning and, with more options and information available in the digital age, it can feel harder to make decisions. Amid the array of options, the basics rarely change and these should always be con...

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