about us

CBW Guernsey offers both individuals and corporates meaningful business and financial solutions via its full range of accountancy services, in particular in relation to tax and transactional services.

CBW Guernsey was set up in 2017, following a joint venture between Chandler Backer & Co, a long standing accountancy firm in Guernsey, and CBW, a top 60 firm of accountants, tax and business advisors based in the City of London. Both firms have been working with clients in Guernsey for many years and coming together means that clients benefit from a full service offering, in particular in relation to insolvency, forensic and investigation, regulatory compliance, tax planning services and audit and accounts.

Our people

Martyn Mahe

Director of CBW (Guernsey) Limited

Martyn is a Chartered Accountant and has acted as the lead auditor to a wide variety of open-ended funds, across a range of asset classes including private equity, venture capital and real estate. Martyn is extremely experienced in dealing with high profile clients in Guernsey in a wide range of difficult commercial transactions, including being responsible for the audit of many of Bailiwick’s largest commercial enterprises which involved advising on such matters as mergers, acquisitions, hostile takeovers and valuations. Martyn is a member of the Association of Restructuring and Insolvency Experts and the Chartered Insurance Institute.

John Dickinson

Head of Corporate Recovery & Insolvency, CBW and Director of CBW (Guernsey) Limited

John has worked full time in Corporate Recovery and Insolvency for over 25 years and has experience in all aspects of insolvency, both corporate and personal. He brings an objective and sympathetic approach and works to find a pragmatic solution to complex and often apparently insoluble problems. He has worked with companies and individuals across all business sectors, as well as advising board members he frequently advises investors in distressed businesses.

John also acts for creditors wishing to recover assets and has been active in court appointed receiverships in high profile fraud cases. He has given expert witness testimony on reported cases.

Ann White

Audit Manager CBW (Guernsey) Ltd

Ann qualified as a certified accountant in 1987, and came to live in Guernsey the same year. Managing our Audit and Assurance function, she has considerable experience in the field, including the audit of licenced fiduciaries and insurance companies regulated by the GFSC. Ann also provides accounting and advisory services to our clients and assists in ad hoc investigative appointments and specialist assignments.

Tina Sherbourne

Office Manager CBW (Guernsey) Ltd

Born and bred in Guernsey with over 15 years’ experience in Guernsey’s fiduciary services industry, Tina is ideally suited to assist Martyn Mahe with both offshore and onshore multi-jurisdictional liquidations. Tina has also been trained in Anti Money Laundering and Counter Financing of Terrorism and is part of the firm’s Compliance Committee. She is in regular contact with the Guernsey Financial Services Commission, The Guernsey Registry and The States of Guernsey Income Tax Authority dealing with all regulatory requirements of CBW Guernsey’s clients. Tina’s varied knowledge and skills make her an invaluable resource for both CBW Guernsey and its clients.

Thomas Adcock

Partner, Tax, CBW

Tom typically advises on the way a particular structure operates for both tax and commercial advantages.

  • Tom advises on the tax issues affecting people and businesses coming from all over the world to interact with the UK
  • Tom is a regular presenter and author on all matters of property tax
  • He is the UK representative on the International Tax Committee of DFK International

Starting his career as a Corporate Tax Inspector with HMRC enables him to successfully manage tax enquires into both corporates and individuals; his experience in working on ‘both sides of the fence’ means he has a first class record when it comes to helping clients with tax investigations.

Dan Rose

Partner, General Practice, CBW

Dan is a member of the ICAEW and a Fellow of the ACCA. He has a wide range of experience and insight into a number of different industries. He and his team are experienced in working with a wide range of businesses operating both in the UK and globally. Dan works closely with the tax department to ensure his clients are receiving the best advice from the firms wide expertise. Dan also heads up our Regulated Business sector.

He works within the transactional team on a number of projects including expert witness work, forensic and investigation projects which require a level of detailed report writing experience.


Audit & Accounts

The right information at the right time can be critical to the success of your business and this is never more the case than in tough, competitive or rapidly changing environments. As well as delivering full year reports, we help companies with year-round financial performance information. The regular data and analysis we provide, ensures you understand the opportunities available to save money, reduce tax liabilities and improve your profits.

Corporate Recovery & Insolvency

With five licenced insolvency practitioners and expertise ranging from individuals to international companies, the CBW Corporate Recovery and Insolvency team has the depth and breadth of experience to deal with any financial crisis. The team will assist in any way possible to help avoid formal insolvency procedures. If they are inevitable, we will act swiftly, professionally and compassionately to preserve value, where possible, for everyone involved.


CBW’s tax specialists deliver clear advice, cutting through the complexity of tax codes and regulation and determining the scale of impact for corporations and individuals. We support every size of company from small businesses to listed companies with comprehensive business tax strategies. Detailed plans are designed based on each client’s size, sector and operating environment.

Forensic & Investigation

Concise evaluations that create powerful financial arguments are what this CBW team is known for. Clients include Government regulators and prosecutors, commercial organisations and leading legal firms.


t: +44 1481 749 690
f: +44 1481 728 931
e: info@cbwguernsey.com

PO BOX 63, 23 – 25 Le PolletSt Peter Port, Guernsey GY1 4BH

CBW (Guernsey) LtdFirst Floor, 23 – 25 Le PolletSt Peter Port, Guernsey GY1 1WQ

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