Mazars has merged with MRI Moores Rowland in a deal that will create a £90m and 100-partner firm. The deal will push Mazars onto the brink of the top ten biggest firms in the UK.

The transaction is expected to be completed on 16 April 2007, with the enlarged team in London being fully integrated under one roof in new premises this autumn.

'Moores Rowland is one of the finest accountancy practices of its size in the UK,' said David Evans, senior partner of Mazars. 'Its reputation as an adviser to owner-managed businesses and firms entering the capital markets is very strong. The integration of the business into Mazars is a significant step forward in our growth strategy.'

Moores Rowland senior partner Fiona Hotston Moore will stay as part of the deal and will take a place on the Mazars UK board.

'Initially, many clients will notice no difference other than a name change, but over time they will benefit from the increased range of services, specialisms and international reach that we will be able to provide,' said Hotston Moore.

Coinciding with the UK announcement, in Germany Mazars and RSM Hemmelrath have also announced the merger of their teams today. Once fully combined, there will be 400 staff with an expected turnover of €50m (£33.9m) in 2007.

Separately, RSM International has boosted its European presence with the admission of Gassó Auditores.

With its integration into the RSM network, the firm will be known as RSM Gassó Auditores.

Further reading:

Profile: Fiona Hotston Moore, of Moores Rowland

Mazars agrees £2,000 fine in impartiality case

Deloitte poaches Mazars partner