BDO LLP is an accountancy and business advisory firm that provides Audit, Tax, Deals, and Consulting, Risk & Outsourcing (CR&O) services to entrepreneurial, growing and ambitious businesses.
Following our merger with BDO Ireland in July 2026, we operate out of 19 locations across the UK and Ireland. Employing 8,500 people and with revenues of approximately £1.1 billion, we are one of Europe’s largest accountancy organisations focused on the ambitious and entrepreneurial mid-market.
With more than 100 years of experience and a strong entrepreneurial heritage, we are uniquely positioned to support businesses at every stage of their journey – from start-up to FTSE, from local markets to international growth.
We put our people and our clients at the centre of everything we do – delivering insight and quality, and in doing the right thing for business and society.
BDO LLP is part of the BDO International network, providing professional services in 169 countries, with 95,000 people working out of 870 offices worldwide. It has revenues of US$11 billion.
Crowe provides professional services through two separate entities: Crowe LLP delivers audit and attest services, and Crowe Advisory LLC provides tax, advisory, consulting, and other nonattest services.
The Crowe Global network consists of more than 300 independent accounting and advisory services firms in more than 150 countries around the globe, making it one of the largest accounting networks in the world.* As independent members of Crowe Global, Crowe LLP and Crowe Advisory LLC serve clients worldwide.
* As of July 2026
EisnerAmper, one of the largest business consulting firms in the world, is comprised of EisnerAmper LLP, a licensed independent CPA firm that provides client attest services; and Eisner Advisory Group LLC, an alternative practice structure that provides business advisory and non-attest services in accordance with all applicable laws, regulations, standards and codes of conduct. Clients are in all business sectors and leverage a complete menu of service offerings. Eisner Advisory Group LLC and its subsidiary entities are not licensed CPA firms. Our combined entities include more than 450 partners and 4,500 employees. For more information, please visit eisneramper.com.