Directory of Social Change Staff

Debra Allcock Tyler

Chief Executive

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Debra has worked in the charitable and voluntary sector for over 30 years. Amongst numerous other roles, she is Vice President of the Soldiering On Through Life Trust Awards and co-chairs the judging panel with the General the Lord Dannatt. She is a Trustee of In Kind Direct, one of the Prince's Foundation Charities, and a trustee of the Berkshire Community Foundation. She is also an Africa Advocacy Foundation Ambassador for women and girls at risk of or affected by Female Genital Mutilation (FGM). She has served as a trustee of several charities including being the co-founder of the Small Charities Coalition and was its first Chair. She served on the Charity Commission's SORP committee for over 7 years and was the Vice-Chair of Governors of Whiteknights primary school for 6 years.

She is a renowned public speaker with many years' experience of training and coaching and internationally published author of several books on management and leadership including It's Tough at the Top; The Pleasure and the Pain; It's Murder in Management and It's a Battle on the Board. Debra has a regular monthly column in Third Sector magazine and has appeared on Radio 4's The Moral Maze.

Harry Wrafter

Executive Office Manager

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Harry joined DSC in June 2021 and is responsible for Personnel, the Executive Office and managing the Trustees.

Rickie Josen

Head of Training and Events

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With a background in training and facilitating events, Rickie joined DSC in November 2021 following a decade in the charity and social enterprise sectors.

A trustee on three boards, Rickie is looking forward to working alongside the knowledgeable DSC team who support the equally hard-working staff and volunteers working across thousands of charities.

George Knight

Training Consultant

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George joined DSC at the beginning of 2017 and, having previously led the sales and customer service teams, moved into the training arena at the start of 2020.

The favourite part of his role is knowing that the work we perform has a major impact on both the charities and individuals that we are able to serve.

Jane Altmann

Customer Services and Sales Coordinator

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Jane joined DSC at the beginning of 2018 and deals with customer service enquiries, as well as welcoming delegates who are attending Training and meeting visitors coming to our Bookshop.

The aspect of her role which Jane enjoys most is helping the wide range of interesting charities which we work to find the right information or support.

Gwen Barnes

Customer Services and Sales Coordinator

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Joined DSC June 2016 and she deals with the daily processes of subscription website memberships, publication orders and course bookings. She is also responsible for the visual merchandising of DSC's bookshop. 

Gwen enjoys the challenge of resolving customer queries.

Cathy Shimmin

Senior Training Consultant

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Cathy has been at DSC for 20 years, in a variety of roles. With over 30 years experience in learning and organisational development, Cathy continues to ensure our customers have the best resources to carry out their work and help their beneficiaries.

The best thing for Cathy about working with DSC is knowing that the quality of products and services we provide to charities makes a difference on the front line.

Eileen Browne 

Training Consultant

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Eileen joined DSC in January 2018, and having worked within the commercial teams in charities and social enterprises brings a wealth of experience of working in the 3rd sector.

Eileen enjoys being part of a team that is genuine, professional and totally committed to building sustainable charities with well trained, confident trustees, employees and volunteers.

Yvonne Coleman

Director of Finance and IT

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Yvonne joined DSC as the Head of Finance in 2019. She is a Chartered Accountant and a member of the ACCA and has specialized in audit and charity accounting for a number of years.

She is responsible for managing, leading and providing support to the Finance team, as well as providing and managing accounting, financial reporting and internal control functions within DSC.

Senn Ndugbu

Acting Director of Finance

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Senn joined DSC in 2019, and his responsibilities include credit control and preparing management accounts for leadership team meeting, financial reporting and internal control functions. Senn loves the fast-paced, dynamic environment of DSC and its collaborative, open and positive culture.

Annette Hutchinson

Senior Accounts Assistant

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Annette’s main role is to make sure monthly figures are compiled and to support the accounts department.

She enjoys working for DSC as ‘it’s all team work’.

Annette Lewis

Director of Sales and Services

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Annette joined DSC in 2007 and has held a number of positions in, Customer Service, Training, Events and Development.  Annette has overall responsibility for Training and Events, Customer Service and Sales,

Her favourite thing about working at DSC is "supporting my direct reports to be the best managers they can be". 

Ben Wittenberg

Director of Development and Delivery

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Ben has had several roles since joining DSC in 2003, at various points leading research, policy, training and events. In his current role as Director of Development and Delivery he oversees the Marketing, Publishing, Funds Online and Development teams.

Ben's favourite thing about DSC is seeing individuals and organisations having a bigger impact because we’ve helped them - whether that’s projects that get funding because someone’s used one of our directories, or amazing people going back to lead their organisations after attending our training courses.

John Martin


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John has worked in publishing since 1986 including for an arts listing magazine, in medical publishing and, for many years, in TV-tie publishing at BBC Publications. Since 2005 he has been Publisher at DSC and enjoys the challenge of commissioning and creating publications of real value to the sector.

Gabi Zagnojute

Editorial Manager

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Gabi joined DSC in 2014 as a volunteer and went on to work with us full time.

Although she left her role a couple of years later, she never lost touch with DSC and in 2019 happily returned to look after DSC publications.

Gabi enjoys being part of the charitable sector and helping charities be better at the great things they do.

Justin Martin

Head of Marketing

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Justin has been at DSC since 2011. He is responsible for building and delivering the marketing budget and strategy.

One of Justin's favourite things about working at DSC is he gets to find out more about all the charities out there doing amazing work.

José Blázquez

Marketing & Product Development Manager

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José joined DSC in 2016 and is responsible for creating, development and implementation of marketing plans for publications and funding websites.

José likes being part of creating products that help charities to help their beneficiaries.

Gabriella Poznansky

Digital Content and Communications Officer

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Gabriella joined DSC in 2021 and she is responsible for our communications.

The thing that Gabriella loves about working for DSC is helping incredible charities get the help they deserve.

Kate Griffith


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Kate has been at DSC since 1994. She is the designer at DSC and does everything that is visual, from book covers to brochures.

The thing Kate loves about working at DSC is that she gets to be creative in so many different ways and seeing how we reach the people that use and benefit from our services.

Jay Kennedy

Director of Policy and Research

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Since starting as a Researcher in DSC's Liverpool Office in 2003, Jay has had several roles in research, policy and as a media spokesperson. He loves the buzz of big ideas and debates about policy, public affairs, research, campaigning, politics and social issues generally.

Jay's favourite thing about DSC is connecting with the awesome people in our charity sector, learning about what they do, and building relationships that make things happen. You might come across Jay's quotes in the sector press, his tweeted blogs and opinions, or as a speaker, chair and panellist at events.

Stuart Cole

Research Development Manager

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Stuart specialises in armed forces charities and won the 2021 FiMT Research Award for his work in this field. He also manages the research team behind DSC's funding guides, and loves seeing the positive impact of DSC's research on the charity sector.

Ian Pembridge

Senior Researcher

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Ian joined DSC in 2014 and works on DSC's funding guides and websites.

Ian's favourite thing about working at DSC is helping smaller charities find funding.

Rhiannon Doherty

Senior Researcher

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Rhiannon joined DSC in 2017 and works on DSC's armed forces charities research. 

Rhiannon's favourite thing about working at DSC is using data to tell a story and affect positive social change. 

Dean Renshaw

Senior Researcher

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Dean joined DSC in 2019 as a Senior Researcher and works on commissioned research. Dean is responsible for identifying research opportunities, liaising with stakeholders, and conducting research.

Dean’s favourite thing about working at DSC is using data to understand and further support the organisations DSC works with.

Chester Howarth


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Chester joined DSC in 2020 as a Researcher on DSC’s Armed Forces Charities research project. He contributes to the research and writing of the Focus on: Armed Forces Charities series.

Chester’s favourite thing about working at DSC is undertaking data analysis and knowing it makes a positive difference to the ability of charities to help others.

Jessica Threlfall

Senior Researcher

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Jessica joined DSC in August 2019 and works on DSC’s funding website and guides.

Jessica’s favourite thing about working at DSC is being able to help highlight the amazing work done by charities across the UK.

Muna Farah


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Muna joined DSC in May 2021 and works on DSC’s funding website and guides.

Muna’s favourite thing about working for DSC is working with hard-working likeminded people to make funding more accessible to charities.