Mazars has in-depth knowledge and experience of sector specialisms. As well as being one of the UK’s leading firms serving the insurance market, we have specialist expertise in banking, retail and consumer markets, industrial products and services, TMT and not-for-profit organisations.

Mazars also acts for close to 500 charities and works with over 140 Social Housing Providers, including Registered Providers, Registered Social Landlords (Wales and Scotland) and Arms Length Management Organisations.

In various sectors, we act for some of the leading businesses in the world. In Banking, Mazars audits BNP-Paribas, the 3rd largest bank in Europe and the 6th largest in the world; in the Retail and Consumer market we audit Pernod-Ricard, the 2nd largest drinks company in the world; and in the Industrial Products and Services sector, Mazars audits Thales the 9th largest defence contractor in the world.

In Insurance, Mazars audits AXA, the 3rd largest insurer in the world. We are also advisers to over 50 UK insurance and reinsurance companies.

Find out more about Mazars' offerings by sector using the menu on the left.

Listed and large corporate

The list of issues facing business leaders of major corporate organisations is long and diverse - from changing trading conditions and reporting requirements to new corporate governance regimes.

Financial services

Mazars has an established, international financial services practice with 1,500 dedicated specialists in over 40 countries. We work internationally to provide seamless, cross-border support to our clients – which include some of the world’s largest banking, asset management and insurance groups.

Not for profit

“Mazars audit staff achieve a good understanding of the ‘business’ and from one year to the next there has been very beneficial continuity of staff on the audit; it appears to be a happy firm that does not have too fast a staff turnover and is more effective for it.” Director of Finance at a Diocesan Board of Finance.

Pension schemes

Pensions are integral to the work we do across Mazars, with our expertise spanning across services to Trustees, Individuals and Employers.


Transport companies operate in the global stage and have not been immune to the economic challenges facing all industries. Shipping is facing oversupply of vessels and scarcity of funding. Rail and buses are facing increased regulation whilst other forms of transport face their own ongoing challenges.

Mazars works with a wide range of clients operating in all areas of transport, from companies listed on the stock market in the UK and internationally, to owner-managed businesses and start up operations.