Leadership team

Jo Bertram
 
 

Jo Bertram

Managing Director

Jo Bertram is Virgin Media O2’s Managing Director for Business and Wholesale. Jo is responsible for providing services to large enterprise, public sector, small and medium business customers, as well as our wholesale and MVNO partners. She was a member of the Executive Team for Telefónica (O2) UK Limited as Managing Director, O2 Business. Prior to joining O2, Jo led Uber’s Northern Europe operations and has several years of consultancy experience.

Jo Bertram LinkedIn Profile
 
 
Catherine Amran
 
 

Catherine Amran

Director of Customer

Catherine Amran is responsible for the end to end customer journey at Virgin Media O2 Business, ensuring that we provide a first class experience for all our business customers. She has over 15 years of experience across commercial, strategic delivery, M&A and consultancy, and is passionate about helping customers of all sizes and in all sectors embrace the digital solutions they need to support their customers and empower their employees.

Catherine Amran LinkedIn profile
 
 
Diego Tedesco
 
 

Diego Tedesco

Commercial, Product and Marketing Director

Diego Tedesco leads our Commercial, Product and Marketing teams at Virgin Media O2 Business. Since joining Virgin Media in 2012, Diego has held several key finance, strategy and commercial roles. Hugely driven and passionate about cementing Virgin Media O2 Business as a connectivity leader in the UK, he is a strategic thinker with a relentless focus on business planning, change management and financial planning.

Diego Tedesco LinkedIn profile
 
 
 
 
Darlene
 
 

Darlene Schroeder

Director of B2B Transformation

Darlene Schroeder is leading Virgin Media O2 Business’ transformation journey. Darlene is responsible for driving complex change programmes across the organisation and realising our future vision of process simplification and enabling technologies. Darlene has over 20 years’ experience across many industries in roles focused on strategy, transformation delivery, operating models, M&A and technology, and is always committed to establishing business and technology alignment.

Darlene Schroeder LinkedIn profile
 
 
Paul O’Sullivan
 
 

Paul O’Sullivan

Wholesale Mobile & Indirect Director

Paul O’ Sullivan leads Virgin Media O2 Business’ wholesale mobile, Internet-of-Things (IoT), smart metering, Mobile Virtual Network Operator (MVNO), messaging & payments, carrier service and roaming businesses. With a degree in Mechanical Engineering, he has spent the last 20 years at mobile and fixed operators in senior commercial, programme and product roles. He is also a Director of Tesco Mobile and, in his spare time, a keen triathlete, runner and cyclist.

Paul O’Sullivan LinkedIn profile
 
 
Jose Luis Carrizo
 
 

José Luis Carrizo

Chief Information Officer

José Luis is responsible for the IT technology and capabilities that enable the products and services that Virgin Media O2 Business provides customers. With more than 20 years’ experience in telecoms, across all technology domains from strategy and architecture to engineering and operations, José Luis is passionate about using technology to solve customer and business problems.

Jose Luis Carrizo LinkedIn profile
 
 
 
 
John Chester
 
 

John Chester

Chief Information Officer

José Luis is responsible for the IT technology and capabilities that enable the products and services that Virgin Media O2 Business provides customers. With more than 20 years’ experience in telecoms, across all technology domains from strategy and architecture to engineering and operations, José Luis is passionate about using technology to solve customer and business problems.

Jose Luis Carrizo LinkedIn profile