Our People

Catalyst Leadership Team

Our Chief Executive Officer has, with the Trustees’ approval, created a management structure to achieve and deliver our services. Current Leadership Team:

Patron: HH Christopher Critchlow DL
Trustees: Warren Rockett, Chair
Chief Executive: Sue Murphy
Operations Managers: Kelly Kennedy / Tim Beasley
People and Culture Manager: Julie Kavanagh
Interim Finance Manager: Philip Taylor
Alpha Community Outreach: Caroline Brooker (deputising for Managing Director)

Catalyst Event


Our Trustees bring a wide range of specialist skills and experience to Catalyst – currently their expertise covers Finance, HR, Communications, Law, Security, Domestic Abuse and the NHS.


Christopher Critchlow


His Honour Christopher Critchlow DL is a former barrister and Circuit Judge who was the senior Judge at Guildford Crown Court 2008-16 and the Honorary Recorder of Guildford. He and his wife Wendy have lived in Surrey since 1980 and he is a Deputy Lieutenant of the county, and High Sheriff of Surrey 2022/23. On behalf of the Lord Lieutenant he chairs a Focus Group on Domestic Abuse. He is a trustee of Surrey Clubs for Young Persons, Painshill Park and the High Sheriff Youth Awards and was a governor of Guildford Royal Grammar School for many years. He is delighted to have become the Patron of Catalyst.


Warren Rockett


Warren was security and crisis management advisor to businesses and business leaders having spent a number of years as the Global Security Head for a major international industrial company. Previously he was a Surrey Detective Superintendent. During his long police career he led on drug partnership initiatives and was a member of the Surrey Drug Action Team, chairing its Drugs Availability Sub Committee.


Kath Mills

Deputy Chair

Kath is currently working as interim Director of Communications & Marketing at a military charity. She has previously held similar roles in higher education and a variety of charities, primarily focused on children, young people and family welfare. Kath has been supporting Catalyst in this area since she became a trustee in 2010. She became Deputy Chair of Trustees in June 2020.


Roger Drennan

Chair of Finance Group

Roger graduated LL.B (hons) and worked as a solicitor in his native New Zealand focusing on commercial and company law before settling in the UK in 1984. After a stint with a London firm of accountants he set up his own financial management consultancy and went on to become Financial Director of a group of UK companies with interests in the USA and abroad. He is experienced in a range of governance and compliance issues and is Chair for the the Catalyst Finance, Remuneration and Investments committee.


Sarbani Bose


Sarbani is the Founder Director of the data consultancy firm Ei Square with 20 years’ experience in digital transformation, especially around data and analytics. She recently graduated from the University of Oxford, Said Business School Artificial Intelligence Programme. Her experience around data and data strategy has assisted organisations within telecommunications, construction, and investment banking. She is also the diversity and Inclusion ambassador for the Institute of Directors in Hampshire and Isle of Wight.


Ewan Henniker-Smith


Ewan has worked in senior leadership roles across a variety of industries, specialising in people and culture, and leading change initiatives. He brings a depth of Human Resources experience, with particular skills in strategic planning, resourcing and talent management.


Darren Garland-Bonner

Associate Trustee

Darren is an established HR professional, having worked in several well-known corporate and not-for-profit organisations. Darren is a Fellow of the Chartered Institute of Personnel Development and has worked in a number of Senior HR Positions over his career to date.

He has been a Trustee and Chairperson of Outline, Surrey’s Sexuality and Gender identify support charity for over 10 years, which we are in the process of integrating into being a Catalyst Support service. He will act as an advisor to the Board on the integration of the two charities and working with Sexuality and Gender identity related communities in Surrey. Darren’s pronouns are he/his/him.

Skip to content