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Athanasios Athanasiou

› Athanasios Athanasiou

Athanasios is an experienced practising Chartered Accountant.   He acts for a wide portfolio of owner managed businesses and high net worth individuals, effectively advising and supporting them with their diverse business and personal taxation needs.  He also specialises in the areas of Residence and Domicile, dealing comprehensively with the international fiscal affairs of UK non-domiciliaries. He has extensive knowledge of major sectors including property and construction, engineering, renewable energy and medical services.
Athanasios is also an audit partner for clients who include private and listed companies, UK holding companies with overseas subsidiaries and UK subsidiaries of international groups. Additionally, he conducts audits of projects funded by the European Commission in sectors such as infrastructure, maritime, education, health and the environment.

Athanasios has a positive and personable approach which he uses to partner effectively with his clients focusing on their unique requirements.  He trained and qualified with BSG Valentine in 1986. He is a Fellow of the Institute of Chartered Accountants in England and Wales.


What my clients say

"Our association with BSG Valentine has lasted for possibly some 15 years.

Starting with annual individual personal tax returns, it has developed to encompass helping to establish a family business and deal with the annual accounts, payroll, on-going corporate taxation advice, general corporate and regulatory advice and even Estate advice which has been very helpful indeed for us and our adult children who are beginning their own professional lives.

Over these years the service from BSG Valentine has been always very personal, prompt and professional; the content has always been punctilious and of high standard.

When we approach BSG Valentine with corporate problems they take deliberate steps to identify and rank our objectives and decision making drivers. This approach, deployed with the professional expertise and solid practical experience embedded at the firm, has achieved successful outcomes for us every time.

BSG Valentine is a firm that keeps its promises. It is a firm that will work with you and look after succeeding generations of your family.  I cannot commend them highly enough."

Dr G Ayida

Women's Wellness Centre

"BSG have been accountants for Zeta Property Investments Ltd. for the past 7 years. They are a reliable and dependable firm and we have been very happy with their services."

Andrew Milne

"We used BSG to incorporate Low Carbon Exchange Ltd. in 2010 and they have acted as auditors since. The renewables sectors is dynamic and fast moving, with ever changing legislation. We have definitely benefited from their services and advice."

Jackie O’Brien

"For 20 years we have been using the services of BSG valentine and they have always been able to deal with everything that we have thrown at them. I don’t think that they could offer a better and more professional service than they have in all these years. In short, Professional, reliable, affordable, accountable and very resourceful."

Simon Ball

"LCX Solar Ltd. is a partnership of three international businesses, using a UK SPV for the sale & distribution of renewable products. The SPV was set up and is audited by BSG who have proved invaluable with not only UK accounting advice, but also EU legislation."

Kevin Childs

LCX Solar Ltd.

"I was introduced to BSG Valentine back in 1975 when I was a Director of a quoted property company.

When I started business on my own I used BSG to advise me on all company matters and personal taxation and I have continued using them to the present time.

I have always found them extremely professional, proactive and knowledgeable in all matters that I sought advice.

I have recommended them to a number of people who have also been very satisfied and would have no hesitation in recommending them in the future."

Peter Hanmer

Topran Investment Co Ltd, Clapton Construction & Investment Co Ltd, Cambridge Storage Ltd

"We have a long standing relationship with BSG Valentine who have been the Company’s Auditors for a number of years.

From our experience their service has been both professional and reliable.

In addition we have found them to be personable, contactable and knowledgeable."

D.M. Sinclair, FCA

Mountview Estates P.L.C.