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George Hadjigeorgiou Chief Operating Officer HOUSETRIP
David Haigh Chief Executive BRAND FINANCE
Kathleen Hall General Manager,Global Advertising MICROSOFT
Trish Halpin Editor In Chief, Marie Claire
Donald Hamilton Managing Director BLINKX UK
Julie Hamshere Research Group Consultant Director MEC
Owen Hanks General Manager, Europe YUME
Cameran Harman MD EMEA OPENX
Richard Harper Principal Researcher in Socio-Digital Systems, Microsoft Research MICROSOFT
Megan Harris Business Director RAZORFISH
Martin Harrision Planning Director HUGE LONDON
Mike Harty COO & Co-Founder POWERLINKS MEIDA
Paul Hayes Managing Director NEWS UK COMMERCIAL
Deborah Haynes The Times DEFENCE EDITOR
Will Hayward Vice President of Advertising, Europe BUZZFEED
Will Hayward VP, Europe BUZZFEED
Fru Hazlitt MD, Commercial, Online, On Demand and Interactive ITV
Trevor Healy CEO AMOBEE
Sir John Hegarty Founder BARTLE BOGLE HEGARTY
Brian Henderson Growth Companies Partner PWC
Steve Henry Co-Founder DECODED
Tom Hind Director, Creative Content GETTY IMAGES
Andrew Hirsch CEO JOHN BROWN MEDIA
Anthony Hitchings Digital Advertising Operations Director FINANCIAL TIMES
Steve Hobbs UK Managing Director AEGIS INTERNATIONAL, AMNET
Steve Hobbs MD, UK AMNET GROUP
Matthias Hoene Partizan Director PARTIZAN
Bob Hoffman Author & Partner, Type A Group THE AD CONTRARIAN
Henry Holland Fashion Designer HOUSE OF HOLLAND
Matthew Hook Managing Director CARAT
Will Hope Director of Label Relations SPOTIFY
Adam Hopkins Commercial Director ZIFF DAVIS INTERNATIONAL
Danny Hopwood Head of Platform EMEA VIVAKI
Robert Horler CEO, Western Europe DENTSU AEGIS NETWORK
Patrick Hourihan Director of Research, Northern Europe YAHOO
Mark Howe Managing Director, Agency Sales, North & Central Europe GOOGLE
Euan Hudghton Managing Partner PHD UK
Jason Huges Head of Branded Content & Product Placement BSKYB
Andrew Humphries Co-Founder THE BAKERY
Margaret Hung VP, International MILLWARD BROWN DIGITAL
Alan Hunter Head of Digital THE TIMES AND SUNDAY TIMES