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Leadership Team


AT&T's global sales representatives around the globe supporting your business.

Global leadership

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Greg Wieboldt

Senior Vice President - Global Account Solutions

Greg Wieboldt is the Senior Vice President of AT&T's Global Account Solutions - supporting AT&T's Most of World Global Account teams, sales strategies, and processes that provide industry leading communications and networking solutions worldwide.


Asia Pacific
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Bernard Yee

Region President Asia-Pacific

Bernard Yee, Region President Asia Pacific of AT&T Global Service, is responsible for managing the direct sales and channel sales teams with a focus on business growth across 14 markets in the region, including Japan. Mr. Yee is based at AT&T's Asia Pacific headquarters in Hong Kong.

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Mary Beth Asher

Executive Director AT&T Asia Pacific Global Business Services

With over 20 years of telecommunications sales experience in diversified global businesses, including worldwide management responsibility, Mary Beth Asher is charged with overall management of regional operations, including the achievement of sales targets and client satisfaction levels. Besides managing various core client programs in the Asia Pacific region, Asher plays a vital role in bridging relations between the Asia Pacific sales teams and the US / regional sales teams.

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Sanjiv Bhagat

Executive Director Sales Management India Pvt. Ltd

His responsibilities include overseeing sales and marketing, technical implementations and customer support throughout the country.

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Hock Lye Choo

Executive Director Sales Management – ASEAN

Hock Lye Choo leads the AT&T team in ASEAN that provides networking-centric solutions to multinational companies through business development, network operations and service delivery.

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Martin Creighan

Managing Director & Sales Centre Vice President, Australia and New Zealand, AT&T

As the Sales Centre Vice President, Martin is responsible for leading AT&T's business in Australia and New Zealand (ANZ). With a career at AT&T that began in 2004, Martin now manages AT&T's sales and business development for the region supporting business functions including service delivery, after sales support, marketing, finance and human resources.

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Johnny Ng

Executive Director Sales Management – Greater China Region

Johnny Ng is general manager of AT&T Greater China region. He was appointed to the position in January 2010. In this role, Ng is responsible for the marketing, sales and business strategies of AT&T's Greater China region which includes Mainland China, Hong Kong, Macau and Taiwan.

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Manabu Oka

Executive Director Sales Management – Japan

Manabu Oka, President of AT&T Japan, is responsible for managing the sales and operation of AT&T in Japan.

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Otis Liao

Director of Sales (Inside Sales) AT&T Asia Pacific

Otis Liao is Director of Sales, Inside Sales of AT&T Asia Pacific, responsible for driving sales growth in Asia Pacific region, with particular focus in the Greater China region. Mr. Liao is based in Taiwan.

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Jason Kim

Sales Director AT&T Korea

Jason Kim is Sales Director at AT&T Korea. He is responsible for driving business and managing overall operation in Korea.

EMEA
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John V Slámečka

Region President EMEA

John Vladimír Slámečka was appointed as Region President for the EMEA Region on March 1st 2015. He is an experienced global leader with an extensive background of successfully managing global teams.

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Rob Hartley

Executive Director Sales Management – UK&I Sales Center

Rob Hartley is AT&T Vice President for the UK & Ireland Region within AT&T's Mobile Business Solutions Organization.

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Kelley A. Duarte

Vice President, IoT & Strategic Services, EMEA, AT&T

Kelley Duarte leads the Internet of Things (IoT) sales center for AT&T in Europe, the Middle East and Africa (EMEA).

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Joachim Kathmann

Sales Center Vice President – Central Sales Center

Joachim Kathmann is the Sales Center Vice President for the Central Region which includes Germany, Austria and Switzerland. Kathmann holds this role since 2008. He also holds the position of Managing Director AT&T Global Network Services Deutschland GmbH.

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Ralf Lauer

Executive Director Sales Management – North Sales Center

Ralf Lauer has joined AT&T in 2001. Ralf is the Sales Center Vice President for AT&T's EMEA North Region which includes Belgium, Netherlands, Denmark, Sweden, Finland and Norway.

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Ricardo Lizarralde Ruiz

Director of Sales South EMEA

Ricardo Lizarralde Ruiz leads the sales center for AT&T in Southern Europe, the Middle East and Africa.

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Guillaume Pasquier

Executive Director Sales Management – France & BeLux Sales Center

Guillaume Pasquier leads the sales centre for AT&T in France, Belgium and Luxemburg.

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Phil Rowe

Director of EMEA Inside Sales

Canada
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Susan Macher

AT&T Associate Sales Vice President – Global Business, Global Account Solutions

On September 1st 2015, Susan Macher was appointed Associate Sales Vice President, Global Account Solutions, for the Canada and US regions. In this role Susan leads a team of sales professionals who deliver communication solutions by bundling key AT&T services including mobility, data, voice, internet, managed, hosting and professional services as well as 3rd party services.

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Rob Rothweiler

AT&T Associate Sales Vice President – Global Business, Global Account Solutions

As of September 1st 2015, Robert Rothweiler is appointed Sales Vice President/AVP Sales, Global Account Solutions, for the Canada and US regions. In this role Robert leads a team of sales professionals who deliver communication solutions by bundling key AT&T services including mobility, data, voice, internet, managed, hosting and professional services as well as 3rd party services. Robert is managing a revenue stream over $1B in partnership with the global team in other regions.

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Walter Kowalsky

Director - Project Management, Global Business Solutions, AT&T

Walter is the Director of Sales for our Insides Sales Team for Canada and Latin America. He is responsible for driving our sales growth with small and medium client locations doing business in Canada and Latin America.

Latin America & Caribbean
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Eduardo Farinelli

Sales Centre Vice President - Mexico, Central America and Caribbean region

Eduardo Farinelli is the Sales Centre Vice President of the Mexico, Central America and Caribbean (MECCA) region at AT&T. Based in Mexico City; he is responsible for leading all AT&T sales strategies and activities for the sales centre’s strategic accounts.

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Fabiano Del Soldato

Sales Centre Vice President - South America

Fabiano Del Soldato is the Sales Centre Vice President for the South America Region under AT&T Global Business Organization. He oversees sales activities focused on revenue growth within the Latin America region. Soldato’s team works to deliver best in class customer experience focusing on opportunities that positively impact productivity, efficiency, image and profit margins.

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Walter Kowalsky

Director - Project Management, Global Business Solutions, AT&T

Walter is the Director of Sales for our Insides Sales Team for Canada and Latin America. He is responsible for driving our sales growth with small and medium client locations doing business in Canada and Latin America.