Our experts across Africa, the Mediterranean and the Middle East provide our clients with world leading market research information services. Click on the links below to meet TNS’s Leaders and Experts.

Executive Members

Karin Du Chenne

Chief Client Officer

Karin Du Chenne has recently moved to Istanbul from Johannesburg where she was previously the CEO of TNS South Africa.

Andrew Lancefield

AMME COO

Andrew Lancefield is Chief Operating Officer for TNS AMME and has 26 years of experience in operations and finance.

Lydia Rolando

AMME Regional Director: Human Resources

Lydia Rolando is Human Resources Director for TNS AMME and has 14 years of experience in strategic HR management and development.

Steve Hillebrand

CEO, TNS Middle East

Steve has been working in the region since 2007 and is responsible for the TNS business across countries in the ME region, including Pakistan & Afghanistan.

Rob Powell

CEO, South Africa

Rob joined TNS in 2004, initially based in Durban, South Africa. He ended up as Head of Client Services for Johannesburg and Durban before moving to Australia in 2010 as Executive Director of the Sydney office.

Adeola Tejumola

CEO for West, East and Central Africa and TNS RMS UK

Adeola Tejumola is the CEO for West East and Central Africa.

Country Leaders

Ndeye Diagne

Managing Director, TNS Senegal and C’ote D’Ivoire

Ndeye was educated in France and has over 12 years experience

Aggrey Maposa

CEO, TNS East Africa

Aggrey is the CEO for TNS East Africa. Prior to this he lead the digital and technology practice of TNS Global, across Africa, Mediterranean and Middle East.

Simplice Ngampou

Managing Director, Cameroon

Simplice contributed in setting up a “satellite” office to Senegal in CDI with an emphasis on strengthening TNS’ position CDI market.

Driss Farissi

General Manager, TNS Morocco

Driss has 18 years of work experience across client and research organisations.

Stella Karayoff

CEO TNS Israel

Stella has been working in TNS since January 2013 and took over as CEO as from September 2013

Adewale Obaseki

Managing Director TNS RMS Ghana

Adewale has over fourteen years of Market Research experience.

Ero Papadopoulou

Managing Director, TNS Icap (Greece)

Ero Papadopoulou is the Managing Director of TNS ICAP in Greece and has been working with TNS for 12 years.

Regional Experts and Client Leads

Melissa Baker

Regional Director; Public Affairs and Social Research

Melissa has over 25 years’ experience conducting and managing primary and secondary research across Africa.

Greg Classen

Regional Director: Innovation and New product Development and head of Marketing

Greg works with clients to provide unique, innovative solutions to complex business problems which require insight and understanding of human behaviour, combined with advanced modelling

Satish Dave

Regional Director Customer Strategies and Employee Research

Satish has over 23 years in marketing research and is an expert in the finance and telecoms sector.

Neal Henriques

Regional Director Automotive

Neal leads a Client Services function and has over 20 experience guiding key business decisions.

Ansie Lombaard

Global Technology Enabled Innovation Research Director

Ansie holds a doctorate in research methodology from the University of Stellenbosch and focuses on developing mobile and social solutions that utilise technology for better insight and business decisions

Arnie Millar

Regional director Qualitative, Africa, Middle East & Mediterranean

Arnie has more than 30 years of diverse experience spanning marketing and market research.

Sawan Prasad

Regional Director Brand and Communication Research

Sawan has over 14 years of market research and client side experience. He heads Client Service, Practice Areas & Marketing Science function in the Middle East with responsibility of supporting key Practice Areas.

Eric Reingewertz

Director – Qualitative (West, East & Central Africa), TNS RMS EAST AFRICA LIMITE

Eric is a director, heading Qualitative for West, East and Central Africa. Previously he was the CEO for TNS RMS East Africa, covering offices in Kenya, Uganda and Tanzania. He is currently based in Nairobi.

Anne Roberts

Regional Director Tracking & Annuity Business

Anne is the TNS AMME expert on tracking, with more than 25 years of experience in this area.

Alison Rice

Regional Director Brand and Communication Research

Alison attended the University of Liverpool in the UK, where she obtained a Bachelor degree in Human Geography.