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Our Team

At Wandsworth Mediation Service, we have over 50 trained mediators who are instrumental in delivering our service and helping people resolve their disputes. 

Community mediators

Our community mediators, facilitators and conflict coaches are all trained volunteers who are committed to serving their local community. The majority of them are Wandsworth residents. We provide regular supervision and professional development opportunities to ensure that they are working to the highest standard.

If you would like to find out about volunteering opportunities, please visit our Get involved page.

Commercial mediators

The commercial mediators on our panel are all highly experienced and qualified mediators with their own successful practices which are independent of their voluntary work with us. They are all accredited by the Civil Mediation Council and work in accordance with the European Code of Conduct for Mediators.

Our commercial and workplace mediators generously donate 100% of their fees to the charity. All income received supports the community side of our work. Our charity is unique amongst community mediation services in funding our service in this way.

Here are some of the mediators on our commercial panel:

Rebecca Attree

Accredited civil, commercial and workplace mediator with 35+ years’ experience assisting global businesses, government bodies and individuals to resolve disputes. Listed as The Legal 500 UK’s Leading Mediator in 2022.

Michael Bass

Accredited civil, commercial and workplace mediator. Previously worked for 25 years in banking, running a number of global business lines, and brings significant experience of complex financial matters in an international context.

Christine Bowyer-Jones

Accredited mediator, trainer and conflict coach with a legal and commercial background. She has particular experience mediating commercial and contract claims, property, construction, landlord and tenant, employment, workplace and sports disputes.

Rupert Cohen

Accredited commercial mediator. Ranked in both Chambers & Partners 2022 and Who’s Who Legal 2021 as a Leading Mediator and described as “a noteworthy mediator with particular expertise and experience in substantial property disputes”.

Rosie Compton

Accredited mediator. She has mediated 200+ cases in the private, public and third sectors and works with private and contract clients predominantly in the UK. ‘Rosie is the best mediator I have worked with in 32 years’ Dave Walker MBE, Director of Mediation, Calm Mediation.

Sharon Crooks

A facilitator, trainer and accredited mediator who works with businesses, charities and community groups. She regularly mediates disputes between board members, trustees, colleagues and members of different kinds of communities.

Serena Davis

Accredited mediator and solicitor of more than 15 years’ standing, able to assist with all commercial and workplace issues, and with specialist experience in marine and commercial disputes.

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Hugh Elder

Accredited mediator with over 40 years’ experience in dispute resolution as a solicitor and mediator, across a wide range of civil and commercial issues. Former President of London Solicitors Litigation Association, former head of litigation and managing partner at Gordon Dadds.

Mia Forbes Pirie

Award-winning, accredited mediator, facilitator and coach. Board Member of the Civil Mediation Council. Former solicitor in a top City law firm. In addition to her corporate clients, Mia has worked with governments, religious organisations and Members of Parliament.

Giselle Green

Accredited mediator and conflict coach with a background in the media, politics and the charity sector. She covers workplace, community, civil and commercial cases and during her career has worked with people of all ages and social backgrounds. She is skilled at putting people at ease and asking the critical questions to unlock a resolution. 

Joanna Gosling

Senior Associate Mediator (family and workplace) at Irwin Mitchell. Joanna is passionate about relationship dynamics, communication, and navigating conflict, which is why she changed career after 30 years as one of the most experienced and best-known rolling news presenters broadcasting in the UK, leaving her role as BBC News Chief Anchor. Joanna also has her own show on Classic fm.

Jessica Hughes

Accredited mediator with a broad commercial chancery background, encompassing domestic and international litigation and arbitration. “She’s very bright, very quick and very thorough, and has a high level of intelligence”. Chambers & Partners.

Jason Hunter

Accredited mediator with 30+ years’ experience in dispute resolution, listed in The Legal 500 and Chambers UK as a leader in his field. Mediation cases range from smaller scale disputes to million pound multi-party claims, involving property companies, large corporations, not-for-profit organisations and individuals. Partner and Head of Property Litigation team at Russell-Cooke LLP.

David Mackie

Accredited mediator with particularly wide experience of commercial, personal injury, employment and public law disputes, gained from thirty years in practice as a solicitor and partner in Central London and City firms, and as a senior lawyer in central government.

Michèle Marriott

Accredited civil and commercial mediator with extensive knowledge of the education and charity sectors. A former fundraising professional, she has 30+ years’ experience in managing relationships with charities, trusts and corporate clients.

Alexandra McAdam Clark

Accredited mediator. Her experience of over 20 years as a trade union negotiator in the scientific public sector, representing 5 professional unions and establishing partnerships with Board/Council members and corporate HR have massively contributed to her work as a workplace mediator.

Nick Pearson

Accredited mediator and former partner of Baker & McKenzie with over 30 years of global experience in dispute resolution. Consistently listed as a Leading Mediator in Chambers & Partners and The Legal 500. Specialises in corporate and commercial disputes, with amounts in dispute ranging from £30,000 to £100 million.

Sue Prevezer KC

Accredited mediator and senior barrister with 30+ years’ experience in commercial litigation at every level of the UK judicial system and in international arbitration. “Tough as nails but really good to work with and just fearsomely bright”, Chambers & Partners.

John Quigley

Accredited mediator and solicitor with over 30 years’ experience in corporate, commercial, employment law and data protection, both in the UK and internationally. He has helped to resolve hundreds of commercial, business, shareholder, partnership, employment and workplace disputes by negotiation, arbitration, litigation, conciliation and mediation.

Stephen Ruttle KC

Our founder, and one of the leading mediators in the UK and worldwide. He has mediated over 1,700 disputes of all legal types. Some have involved many billions in value, others have been of great public and political sensitivity. He is consistently featured in WWL Global Mediation Leaders, Legal 500 and Chambers rankings. “Easily the best mediator on the circuit” Legal 500 2022.

Laura Tweedy

Accredited, Legal 500 recommended mediator and CMC Associate. With nearly two decades experience at the property bar, she is ideally placed to cut through complex legal disputes. “A real fighter and always willing to go above and beyond. She uses her legal knowledge combined with fantastic people skills. She is loved by solicitors and their clients alike.” (Chambers UK, 2023)