Printed Date: 23/01/2022

Senior Management Biographies

To read about a particular member of our senior management team, just click on their name and title below:

Mark Sesnan – Exec Director - CEO

Peter Bundey – Exec Director - Deputy CEO

Philip Donnay­ - Exec Director - Chief Finance and Resources Officer 

Justin Jardine - Associate Director of Development and Partnerships

Steve Ward - Associate Director of Marketing, Sales and Digital

Lorraine Patrinos - Associate Director of Learning and Development

Chris Hebblewhite – Associate Director National Standards and Compliance

Diana Edmonds – Head of Libraries

Jon Argent – National Partnerships Director

Mark Sesnan – Exec Director - CEO

Mark was instrumental in moving the leisure centres service from Greenwich Council to a staff-led, not-for-profit Social Enterprise Leisure Trust in 1993 – the first of the new leisure trusts.

Mark has extensive experience in leisure management having worked for many years at a senior level in local government and latterly in the ‘not-for-profit’ sector.

He is currently Honorary Secretary of Community Leisure UK, a Board member of ukactive and is Co-Chair of the London Social Enterprise Leaders Group. He is also sponsor of the highly successful GLL Leisure College and a Trustee of the GLL Sport Foundation.

Mark has been a Cabinet office advisor on local authority mutual ‘spin outs’ and   speaks regularly at conferences on Social Enterprise, Business leadership, Trusts and Partnerships issues.  He has co-authored papers for Sport England and others. He’s responsible for the management of GLL with a staff base of 13,000 employees, nearly £300 million turnover and operation of 270 facilities with over 50 operating partners.

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Peter Bundey – Exec Director - Deputy CEO

Peter has over 30 years experience in the sport and leisure sector, including senior roles within sport & leisure organisations and local authorities. He has worked on a wide range of high-profile projects with numerous local authorities, sport governing bodies and leisure organisations across key agendas such as; new company formation, policy review, organisational development and performance planning.

Peter has worked alongside numerous sport and charitable national bodies on a range of key national and international projects. Peter has presented industry evidence to Parliamentary Select Committees at the House of Commons on the Olympic & Paralympic Games and Social Enterprise within the Public Sector.

Peter has over 20 years experience within the Social Enterprise and Charity sector. He is currently Chair of the GLL Sport Foundation and Chair of the Greenwich Starting Blocks Charity. He has previously held roles as National Council Member of Social Enterprise UK, Chair of the Pro-Active East London Sports Board and Honorary Industrial Advisor to the London Metropolitan University. Peter has been a national assessor for the Sport England’s National Management Awards and has contributed to the ISRM Practical Leisure Centre Manager publication.

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Philip Donnay – Exec Director -  Chief Finance and Resources Officer

Philip started working for the London Borough of Greenwich in 1989 and was part of the original group of staff that transferred from the Council DSO to GLL when it was formed as a staff-led Charitable Social Enterprise in July 1993.

Over the last 25 years or so, Philip has worked across a variety of business disciplines having directly managed leisure centres as well as heading up the Finance & Business Administration Department. He’s also served on the Board of GLL for over 20 years (including 4 years as Chair and 15+ years as Company Secretary).

Philip is a qualified Chartered Accountant and fulfils the role of CFRO. He is responsible to the board for the provision of a sound and effective framework of financial and commercial policies, practices, procedures and controls such that the organisation is able to maximise its cash flow and revenue streams alongside the ongoing need of minimising costs and the meeting of all statutory and other fiduciary obligations.

Philip is also responsible for the provision of strategic HR and heads the team providing HR services and support to the organisation including payroll and pensions.

As a member of the Executive Directors Team, Philip contributes to the development of GLL by bringing strategic understanding and experience of the finance, business administration and leisure markets as well as a good understanding of legal issues, strong analytical skills and sound business sense.

Philip is also a Member of the Chartered Management Institute and is a Chartered Manager.

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Justin Jardine – Associate Director of Development and Partnerships

A masters graduate from Loughborough University, Justin has over 22 years leisure and business management experience and sits on GLL’s Senior Leadership Team. Leading a team of 10, he has extensive experience of developing partnerships across a number of local authorities, community organisations and leisure trust partners.  Justin also deals with complex matters around legal and tax issues relating to leisure trusts and the wider industry.

Justin’s main responsibility is for the strategic growth and development of GLL, which has seen the organisation grow from a turnover of £4m to nearly £300m. He was also GLL’s Lead Officer for the successful tender of the London 2012 Legacy Venues.

Justin has served on GLL’s Management Board and has undertaken the voluntary roles of Vice Chair and Company Treasurer. He is also a Fellow of CIMSPA and recently completed the Global Leaders Programme at the IESE Business School in Madrid.

Outside of work he is a keen sports fan, in particular Rugby, Squash and Cricket. He captains his local squash team, which some comment is the only way he gets selected!

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Steve Ward – Associate Director of Marketing, Sales and Digital

Steve has overall responsibility for company-wide marketing, sales, business intellegence and digital work streams as well as membership related products. This work includes ongoing communications and marketing to the communities GLL operates within, operating targeted sales campaigns, increasing the companies’ customer facing digital capabilities, improving access via the membership architecture and linking in to product developments to ensure successful launch.

With over 25 years’ experience in the leisure industry, Steve originally began working with GLL as a Recreation Assistant before promotion through a variety of roles including Centre and Regional Management. This operation experience ensures a sound overall knowledge of many aspects of the business.

Steve holds various management and marketing qualifications including a Postgraduate Diploma in Marketing and is a member of the Chartered Institute of Marketing, and is a registered Chartered Marketer. Having served on the Board in various positions for over 20 years he also served as GLL Chair for 11 years until 2017.  Outside of GLL, Steve is Chair of Governors for a secondary academy school and has supported the governance agenda in education for 8 years.


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Lorraine Patrinos – Associate Director of Learning and Organisational Development

Lorraine is a sociologist, holding a post-graduate Leisure Degree and is MCIPD qualified. With over 27 years of experience within the Leisure Industry, she is a founder member of GLL, and its first Chair.  She worked her way up through the organisation, from lifeguard to receptionist to general manager, before deciding to retrain and specialise in HR in 2000.

Lorraine and her team have responsibility for the learning and development of all 13,000 staff including those passing through the award-winning Management Academy and Trainee Management Development schemes – and via the GLL College.

Responsible for delivering Investors in People and a qualified coach and mentor, Lorraine is continuing her studies for a Masters in People and Organisational Development.

In her spare time she enjoys fitness, weight training, art and travel.


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Chris Hebblewhite – Associate Director National Standards and Compliance

Chris has been with GLL since 1998.  Over his career he has worked at various levels from General Manager to Head of Operations.

Prior to GLL, Chris worked in various leisure roles with the London Borough of Waltham Forest, Huntingdonshire District Council and Lincoln City Council, and has worked in the industry for nearly 35 years.

As a Chartered Manager and a Fellow of Chartered Institute for the Management of Sport and Physical Activity, Chris plays an active part in the industry. He represents CLUK on a number of BSI working groups for swimming pool and aquatics equipment, including contributions to British and European Standards and work on Automated Drowning Detection Systems.

Chris is a joint author of CIMSPA publications, and contributed to the editorial panel for the rewrite of Managing Safety in Swimming Pools and to the PWTAG publication "Swimming Pool Water".

In 2016 Chris assisted the British Olympic Association on pool safety assessments for the Rio 2016 training camps.  

In his current role Chris works across all divisions of GLL including Leisure, Libraries and Children’s Services and is a member of UK Actives Standards and Legislation Committee.

Chris has also been active on the GLL Board, having worked as both Treasurer and Vice Chair.


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Diana Edmonds, MBE – Head of Libraries

As a librarian, Diana has worked in a variety of roles; in academic libraries (London University and the London School of Economics), in public libraries in Aberdeen and in specialist libraries such as the Tate Gallery.

Prior to her employment with GLL, Diana established an information company called ‘Instant Library’, and worked in the business both as a consultant and as the Managing Director, working internationally in the oil industry and the rail industry. She sold Instant Library to the Tribal Group in 2001 and stayed with the business until 2004, going on to join Haringey Council in the role as Assistant Director, Culture, Libraries and Learning.

In Haringey, she worked initially as a consultant: the library service had failed an Audit Commission Inspection, scoring "no stars" with "no hope of improvement". Visits to the libraries increased by over 300% in subsequent years and issues increased by 150%. By 2011, the service had become one of the most popular in the country, used by over 60% of residents. Diana was awarded an MBE for her work.

Originally a history graduate, a Fellow of CILIP (the Chartered Institute of Information Professionals) and of the Royal Society of the Arts, Diana is a keen gym member - and, of course, loves reading!

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Jon Argent – National Partnerships Director

Jon has extensive experience in leisure management having worked for a number of local authorities over the last 25 years. Having begun his career as a casual lifeguard, Jon transferred to GLL in 2014 from his previous position as founding CEO of Halo Leisure.

Jon is a member of the Quest Board and long-time Assessor. He has also Chaired Social Enterprise West Midlands and was an active member of Sporta (now called Community Leisure UK) serving six years as Vice Chairman.

He holds an MBA and is a CIMSPA board member, as well as a Chartered Fellow and is also a member of the Chartered Management Institute. He is presently developing a thesis on social enterprise governance as part of a professional Doctorate (DBA) from the University of Birmingham.

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