Our Executive Committee

Ashley Almanza


Appointed: May 2013

Skills and experience: Extensive board and executive management experience in complex international businesses. Holds an MBA from the London Business School.

Career experience: Senior executive roles at BG Group from 1993 to 2012, including CFO from 2002 to 2011 and Executive Vice President from 2009 to 2012, during which he led BG Group’s UK, European and Central Asian businesses and the group’s commercial strategy in Central Asia. Formerly non-executive director (chair of Risk and Audit) of Schroders plc between 2011 and 2016 and Noble Corporation Inc between 2013 and 2018. He previously served as Chairman of the Hundred Group and was a member of the Advisory Board for the Oxford University Centre on Business Taxation.

Current external commitments: Chairman of the International Security Ligue.

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Charles Baillieu

Charles Baillieu, CFO - International

Appointed: May 2021

Skills and Experience: Charlie studied at Durham University, graduating in 2007 with an Honours degree in History. After graduating, he worked for 5 years in the investment banking division of Citi, gaining wide experience in Corporate Finance and M&A.

In 2012, Charlie joined G4S, since when he has held a number of senior commercial, operational and finance leadership roles, working at Business Unit, Region and Group level. Most recently he was Regional CFO, Europe and prior to that he was Divisional CFO, Global Cash Solutions. 

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Celine Barroche

Celine Barroche, General Counsel - International

Appointed: October 2021

Skills and experience: As a Qualified solicitor for England & Wales and Chartered Company Secretary, Celine brings strong leadership skills and a wealth of corporate, international and security industry experience. After obtaining a master's degree in law from the University of Burgundy in France, Celine gained legal experience in the construction industry and the automotive industry, before qualifying as a solicitor in England and Wales, specialising in corporate and commercial law.

Celine left legal practice in 2009 and joined G4S, where she held a number of senior leadership roles in the Legal team, working at Regional and Group level. Most recently, Celine was Company Secretary and Deputy General Counsel for G4S. 

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Mel Brooks

Mel Brooks, Regional CEO - Africa and Middle East

Appointed: May 2015

Skills and experience: Mel joined G4S in 2012 and his roles included Group Strategy & Commercial Director and CEO India and South Asia, where he led the transformation of the business, improving operations, customer service and sales.

Prior to joining G4S, Mel held a number of senior line and functional roles in the defence and technology industries where he was responsible for service line and commercial strategies, technology development and leadership of a number of business unit turnaround programmes.

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Graham Levinsohn

Graham Levinsohn, Regional CEO - UK and Ireland

Appointed: November 2017

Skills and experience: Graham has more than 20 years’ experience in the security industry. He has held a number of commercial and line management positions in our cash and security businesses. Graham was responsible for the creation of the UK cash centres outsourcing business in 2001. He became Group Strategy and Development Director in 2008 and joined the executive committee in 2010.

He was appointed Regional CEO, Europe in 2013 and the Middle East was added to his portfolio in 2017. He is a director of CoESS and a director of the International Security Ligue. Graham is a Fellow of the Chartered Institute of Marketing.

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Soren Lundsberg

Søren Lundsberg-Nielsen, EVP Corporate - International

Appointed: 2001

Skills and experience: Søren began his career as a lawyer in Denmark and has had a wide range of legal experience as general counsel for international groups in Europe and the US before joining the Group in 2001 as Group General Counsel. Søren has overall responsibility for all internal and external legal services for G4S Group and the Group’s insurance programme.

Søren is non-executive director of Basico A/S, a member of the Danish Bar and Law Society, a member of the advisory board of the Danish-UK Association and author of the book Executive Management Contracts, published in Denmark.

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Jesus Rosano

Jesus Rosano, Regional CEO - LATAM & Chief Operating Officer - International

Appointed: January 2018

Skills and experience: Jesus joined G4S in March 2014 as Chief Operating Officer, Latin America. In January 2016 Jesus joined the executive committee as Group Strategy and Commercial Director and was appointed to his current role, on 1 January 2018. Jesus holds a bachelor’s degree in Engineering and Administration from ITESM University, Mexico.

Prior to joining G4S he held senior line, functional and regional roles at DHL, in Latin America and North America. Before DHL, Jesus worked in strategy consulting and investment banking.

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Stephane, Verdoy, G4S, Sales

Stephane Verdoy, Regional CEO - Europe

Appointed: February 2018

Skills and experience: Stephane joined G4S in May 2014 in the role of Regional Sales Operations Director and moved in to the role of Sales Director, Europe shortly afterwards. Stephane holds a bachelor degree in Marketing and Distribution.

Prior to joining G4S he held many different roles in sales, sales operations and field marketing at Fedex. His last position at Fedex was Vice President Global Sales and Sales Operations Europe.

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Sanjay Verma

Sanjay Verma, Regional CEO - Asia PAcific

Appointed: January 2018

Skills and experience: Sanjay joined G4S in May 2017 as Regional President Secure Solutions – Asia Pacific. Sanjay has extensive business experience operating across Asia Pacific having been based in India, China and Hong Kong. Sanjay joined G4S from Cushman & Wakefield, a global real estate services firm.

During his 17 years in that company he held a number of leadership roles including CEO, Asia Pacific and Chief Executive, Global Occupier Services, covering the Asia Pacific region. Sanjay is a graduate in electrical engineering and has a MBA in finance & marketing. 

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Debbie Walker

Debbie Walker, Corporate Affairs Director - International

Appointed: March 2004

Skills and experience: Debbie is responsible for the corporate communications team which focuses on the Group’s key audiences – media, government, employees and customers. She is also responsible for the Group’s CSR and human rights strategies. 

Prior to the merger between Group 4 Falck and Securicor, she held a number of senior marketing and communications roles within the Securicor group, having joined in 1993.

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Fiona Walters

Fiona Walters, EVP Sales & Marketing - International

Appointed: September 2021

Skills and experience: After working at various UK blue chip companies Fiona joined G4S in 1992 as it was forming its Care & Rehabilitation Services business and played an instrumental role in the start-up and development of the business.  Remaining with this division, she moved to the US to run the US-based companies, taking them to market-leading positions within three years. 

She then joined G4S' Americas Region working first in Communications and Corporate Development and subsequently leading our sales and business development for all service lines in 20+ countries, while directly managing the sales organisation in G4S's largest single global business unit, where sales output was doubled in three years.  Additionally, she leads a highly regulated global customer portfolio spanning more than 40 countries. 

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