EX-8.1

Exhibit 8.1

Our principal subsidiaries as of December 31, 2014, are listed below. All other subsidiaries, if considered in the aggregate, would not constitute a significant subsidiary under Rule 1-02(w) of Regulation S-X.


COMPANY NAME		JURISDICTION UNDER WHICH ORGANISED
United States
AKQA, Inc.		California
Burson-Marsteller, LLC		Delaware
Catalyst Online LLC		Delaware
Competitive Media Reporting, LLC		Delaware
Digitaria Interactive, Inc.		California
Geometry Global LLC		New York
Glover Park Group LLC		Delaware
Grey Global Group LLC		New York
Grey Healthcare Group LLC		New York
Group M Worldwide, LLC		Delaware
Hogarth Worldwide Inc.		Delaware
I-Behavior LLC		Delaware
J. Walter Thompson Company, LLC		Delaware
J. Walter Thompson U.S.A., LLC		Delaware
KBM Group LLC		Delaware
Landor, LLC		Delaware
Lightspeed, LLC		Delaware
Marketing and Planning Systems LLC		Delaware
Maxus Communications LLC		Delaware
Mediacom Worldwide LLC		Delaware
Mediaedge:cia, LLC		Delaware
Millward Brown, LLC		Illinois
Mindshare USA, LLC		New York
Ogilvy CommonHealth Worldwide LLC		Delaware
Ogilvy Healthworld, LLC		Delaware
Ogilvy Public Relations Worldwide, Inc.		Delaware
OgilvyOne, LLC		Delaware
Penn, Schoen & Berland Associates, LLC		Delaware
Red Fuse New York, LLC		Delaware
Sudler & Hennessey, LLC		Delaware
TeamDetroit, LLC		Delaware
The Ogilvy Group, LLC		Delaware
TNS US, LLC		Pennsylvania
VML, Inc.		Missouri
WPP Group U.S. Finance LLC		Delaware
WPPIH 2001, Inc		Delaware
Wunderman Worldwide, LLC		Nevada
Xaxis US, LLC		Delaware
Xaxis, Inc.		Delaware
Young & Rubicam Inc.		Delaware


COMPANY NAME		JURISDICTION UNDER WHICH ORGANISED
Non-US
Mediacom Australia Pty Limited		Australia
GroupM (Shanghai) Advertising Co. Ltd		China
J.Walter Thompson Bridge Advertising Co. Ltd.		China
Kinetic Advertising (Shanghai) Co. Ltd		China
Millward Brown ACSR Co. Ltd		China
Kantar SAS		France
KR MEDIA France SAS		France
Advanced Techniques Group (ATG) GmbH		Germany
Commarco GmbH 120274		Germany
GroupM Competence Center GmbH		Germany
GroupM Germany GmbH		Germany
MEC GmbH		Germany
MediaCom Agentur für Media-Beratung GmbH		Germany
MediaCom Hamburg GmbH		Germany
Mindshare GmbH		Germany
TNS Infratest GmbH		Germany
Always (Shanghai) Marketing Services Co Ltd		Hong Kong
Total Glory International Limited		Hong Kong
GroupM Media India Pvt Ltd		India
Hindustan Thompson Associates Private Limited		India
Ogilvy & Mather Pvt Ltd		India
MEC Italia srl		Italy
WPP Luxembourg Gamma Sarl		Luxembourg
WPP Luxembourg Gamma Three Sarl		Luxembourg
WPP Luxembourg Sarl		Luxembourg
Lightspeed Research B.V.		Netherlands
WPP US Investments BV		Netherlands
Kantar Media S.A.		Spain
Mediacom Iberia SA		Spain
Vinizius Young & Rubicam SL		Spain
WPP Holdings Spain, S.L.		Spain
AKQA Limited		United Kingdom
Creative Services Unit Limited		United Kingdom
Enduring Organisation		United Kingdom
Flexible Organisation		United Kingdom
G2 Branding and Design Limited		United Kingdom
J. Walter Thompson Group Limited		United Kingdom


COMPANY NAME		JURISDICTION UNDER WHICH ORGANISED
Kantar Media UK Ltd		United Kingdom
Kinetic Worldwide Limited		United Kingdom
Lightspeed Research Ltd		United Kingdom
Maxus Communications (UK) Limited		United Kingdom
MediaCom UK Limited		United Kingdom
Mediaedge:CIA UK Limited		United Kingdom
Mediaedge:CIA Worldwide Limited		United Kingdom
Millward Brown UK Limited		United Kingdom
Mindshare Media UK Limited		United Kingdom
Ogilvy & Mather Group (Holdings) Limited		United Kingdom
Outrider Limited		United Kingdom
Prophaven Limited		United Kingdom


COMPANY NAME		JURISDICTION UNDER WHICH ORGANISED
RLM Finsbury Limited		United Kingdom
TNS Group Holdings Limited		United Kingdom
TNS UK Limited		United Kingdom
WPP 2005 Limited		United Kingdom
WPP 2008 Limited		United Kingdom
WPP Finance Co. Limited		United Kingdom
WPP Jubilee Limited		United Kingdom
WPP No. 2337 Limited		United Kingdom
WPP Pearls Limited		United Kingdom
WPP Unicorn Limited		United Kingdom
Young & Rubicam Group Limited		United Kingdom
Young & Rubicam Holdings (UK) Limited		United Kingdom