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  • UK & Ireland coverage

  • Strength and depth of resource

  • International capability

  • UK & Ireland coverage

  • Strength and depth of resource

  • International capability

Tax, Audit, Advisory


Working together to provide a nationwide service offering, AGN UK & Ireland is primarily focused on supporting SME’s, mid sized businesses, high net worth families and trusts across the UK and Ireland.

Through our membership of AGN international, we can extend a full service offering to foreign companies seeking support in the UK & Ireland or we can support local companies seeking to do business overseas.

Tax, Audit, Advisory

A leading worldwide association of independent firms

Comprising around $1.3 billion revenue, 14,000 people and 500 offices in 80 countries



Our offices provide comprehensive coverage across the UK and Ireland.



Our partners have experience in a wide range of sectors combined with deep service specialisms.



Our people is connected globally to deliver bespoke solutions to local needs.


Client service at the heart of everything

Successful UK businesses are seeking broad based geographic coverage, and the ability to access technical knowledge and resources wherever they happen to operate, be that London, Birmingham, Paris or Bangkok.

AGN UK & Ireland tackles that issue head on by coordinating our firms across the UK and Ireland in a client centered collaboration.

    • Manufacturing
    • Automotive
    • Chemicals
    • Engineering
    • Packaging
    • IT
    • Video games
    • Not for profit
    • High net worth individuals
    • Charities
    • Creative industries
    • Film industry
    • Financial services
    • Agri-business
    • Pensions
    • Pharmaceutical
    • Legal
    • Property and construction
    • Family office
    • Landed estates
    • Non UK domiciled
    • Art
    • Renewable energy
    • Property
    • Schools
    • Rural business
    • Maritime
    • Aviation
    • Doctors and dentists
    • Retail
    • S.M.E.
    • Audit and compliance
    • Personal tax
    • Corporate tax
    • Company secretarial
    • VAT
    • Accountancy
    • Corporate finance
    • Commercial insurance
    • HR services
    • Pensions and investments
    • Strategic advisory and coaching
    • Trustee and executor services
    • Foundation services
    • Liquidation and insolvency
    • Expert witness
    • Forensic investigations and accounting
    • Business planning
    • Fiduciary
    • Payroll
    • Inward investment
    • International advisory and support
    • Cloud accounting
What this means in practice?

We offer clients a extraordinary range of technical skills and knowledge.

From tax planning techniques in the video gaming industry, to family office and landed estate services built on generations of clients. From a deep understanding of doing business in the UK entertainment and gaming industry, to the expert witness work that forensic accounting requires of us.

Our combined size also means that we have the resources and geographic spread to compete with many larger accounting and advisory services, without the costs associated with those firms.

This means we are quick and agile, commercial and fleet footed and in a great position to service the audit, tax and accounting requirements of most British businesses.

Find a member

AGN UK & Ireland


If your business needs support, please contact any member of AGN UK & Ireland listed below.

CT: Accountants Advisers

First Floor, Suite 2
201 West George Street
Glasgow G2 2LW
(+44) 0141 488 1200
Contact Partner: Paul Mason

Fairways House
Fairways Business Park
Inverness IV2 6AA
(+44) 01463 575400 and
Contact Partners: Jackie Fraser and Shona Fraser

33 St James Square
London SW1Y 4JS
(+44) 0207 129 1403
Contact Partner: Jeremy Chittleburgh

61 Dublin Street
Edinburgh EH3 6NL
(+44)  0131 558 5800
Contact Partner: Neil Norman


35 Ballards Lane London N3 1XW
+44 (0)20 8922 9222
Contact Partner: Martin Gibbs


One Eastwood
Coventry CV3 2UB
(+44 24) 7622 1046
Contact Partner: Martin Gibbs

Plymouth Science Park, 1 Davy Road,
Plymouth, Devon, PL6 8BX
(+44 1752) 397777

Duignan Carthy O’Neill

84 Northumberland Road, Ballsbridge
Dublin 4
(+3531) 668 2404
Contact Partner: Timothy F. Carthy

Leonard Curtis

Level 5, The Grove 248a Marylebone Road
+44 (0) 207 535 7000

22 Gander Lane
Barlborough, Chesterfield S43 4PZ
+44 (0) 1246 385 775

85-89 Colmore Row
Birmingham B3 2BB
+44 (0) 121 200 2111

40 Queen Square
Bristol BS1 4QP
+ 44 (0) 117 929 4900

Leonard Curtis House. 1A Elms Square. Bury New Road
Whitefield M45 7TA
+44 (0) 161 413 0930

Sophia House 28. Cathedral Road
+44 (0) 2921 921 660

22 Gander Lane. Barlborough
Chesterfield S43 4PZ
+44 (0) 207 535 7000

Business Central. 2 Union Square
Darlington DL1 1GL
+44 (0) 1325 525 840

4th Floor. 58 Waterloo Street
Glasgow G2 7DA
+44 (0) 141 212 2060

Kings Langley
Monaco House. Unit 1 Monaco Works. Station Road
Kings Langley WD4 8LQ
+44 (0) 1923 277911

6th Floor. 36 Park Row
Leeds LS1 5JL
+44 (0) 113 323 8890

6th Floor. Walker House. Exchange Flags
Liverpool L2 3YL
+44 (0) 151 556 2790

Riverside House. Irwell Street
Manchester M3 5EN
+44 (0) 161 831 9999

20 Roundhouse Court. South Rings Business Park. Bamer Bridge
Preston PR5 6DA
+44 (0) 1772 646 180

Enterprise House. Ocean Village
Southampton SO14 3XB
+44 (0) 2382 022 900

112 High Street West. Sunderland
Tyne and Wear SR1 1TX
+44 (0) 191 338 5477

Regent House. Bath Avenue
Wolverhampton WV1 4EG
+44 (0) 1902 810 102

40-41 Foregate Street
Worcester WR1 1EE
+44 (0) 1905 677490


10 Orange Street Haymarket London WC2H 7DQ UNITED KINGDOM
(+44 20) 7312 0000

3 Godalming Business Centre Woolsack Way Godalming GU7 1XW UNITED KINGDOM
(+44 1483) 423 607

AGN latest insights

November 27, 2023

From AGN EMEA Tax Committee members and AGN tax correspondents Permanent Establishment and Fixed Business Facility for Service Providers in Germany: A foreign company operating in Germany must be assessed from a tax perspective to decide whether the establishment is a ‘permanent establishment’ or not. The existence of a permanent establishment has various consequences, especially […]

The post How is a Permanent Establishment Defined in Germany? appeared first on AGN International.

November 22, 2023

Contributed by: BKL. Simon Bussell, our Marketing and Business Development Director, sat down with Myfanwy Neville, Partner and Head of ESG (Environmental, Social and Governance), to talk about BKL’s ESG journey – including becoming a certified B Corporation in 2022 – and how we’re supporting owner-managed companies to become better businesses. Their conversation covers: Simon […]

The post Video: Business But Better – BKL’S ESG Journey appeared first on AGN International.

November 15, 2023

News from the AGN EMEA Accounting, Auditing & Education Committee (AAEC) The materiality analysis is the “linchpin” of future Corporate Sustainability Reporting Directive (CSRD)/European Sustainability Reporting Standards (ESRS) sustainability reporting. The scope of the future sustainability report depends crucially on which sustainability aspects are on the so-called “material topic” list at the end of the […]

The post ESRS Materiality Analysis in Medium-Sized Businesses appeared first on AGN International.

November 13, 2023

For the second year in a row, AGN Firm James Moore in Gainesville, FL, has been named a Best CPA Firm for Women by the Accounting MOVE Project. The organization also named the firm to its list of Top Firms for Equity Leadership for the fifth straight year. Named Best CPA Firm for Women and […]

The post James Moore Named a Best CPA Firm for Women and a Best CPA Firm for Equity Leadership appeared first on AGN International.