Tax & Accounting Firms

ONESOURCE™ Tax Provision has developed relationships with a number of firms to provide a full range of consulting services around our product suite. Services include implementation support, process improvement, accounting services and Sarbanes-Oxley advice.


GLOBAL Accounting Firms

Ernst & Young, Deloitte, and KPMG assist clients in the improvements of their tax and accounting processes. Each of these global firms advice on process improvement, internal controls, implementations and Best Practices. With their global reach, these firms can assist with tax provision implementations and training around the world.

Deloitte Finland
Tomi Pitkänen
Porkkalankatu 24
00180 Helsinki
Finland
+358 (0) 20 755 500
www.deloitte.fi

Deloitte Netherlands
Sander Kloosterhof
Leen Vernie
Orlyplein 10
PO Box 58110 (P.O. Box)  
1040 HC Amsterdam
Netherlands
+31 (0) 20 5824274 (Sander)
+31 (0) 20 5824208 (Leen)
www.deloitte.nl

Deloitte Switzerland
David McNeil
Route de Pré-Bois 20
1215 Geneva
Switzerland
+41 (0) 22 747 71 99
www.deloitte.ch

Deloitte U.K.
Albert Fleming
Simon Cowan
2 New Street Square
London EC4A 3BZ
United Kingdom
+44 (0) 207 936 3000
www.deloitte.co.uk

Ernst & Young Europe, Middle East, India and Africa
Robert A. Guarnieri
Albert Lee
1 More London
London SE1 2AF
United Kingdom
+44 20 7951 4607
www.ey.com

We provide a list of global accounting firm contacts in the U.S. as well.