The Advertising Standards Authority has recently appointed Gary Joyce, Siobhán Masterson and Stephen Jackson to its Board. The Board is responsible for oversight of the Advertising Standards Authority’s business activities and performance, and also contributes towards drawing up and implementing the Code of Standards for Advertising and Marketing Communications in Ireland.
Gary Joyce is the Co-Founder and Managing Partner of Genesis, a business advisory firm that helps organisations reimagine and renew their strategy, brand and culture so that they create real value and succeed in their ambitions. A seasoned business strategist, leadership advisor, and executive coach, she brings over three decades of experience helping leading organisations shape business growth, build strong brands, and drive culture transformations.
Gary has extensive board involvement across private, public, and not-for-profit sectors. She is currently Deputy Chair of Barnardos and serves on the boards of European Movement Ireland and the Irish Farm Accounts Co-operative Society Limited (IFAC).
Before establishing Genesis, Gary co-founded Dimension, Ireland’s first multidisciplinary marketing communications company, which was acquired by McConnells Advertising in 1994.
Gary holds a Bachelor of Social Science from University College Dublin, a Master of Science in Executive and Leadership Coaching, a Diploma in Company Direction, and a Diploma in Women’s Studies. She is a Fellow of both the Institute of Management Consultants and Advisors and the Marketing Institute of Ireland, and is currently pursuing the Chartered Director designation.

Siobhán Masterson is the CEO of Iapi, the organisation representing the commercial creative, advertising and communications industry. Appointed in February 2025, Siobhán has wide-ranging experience across corporate affairs, communications, socio-economic policy and commercial strategy. She was previously Global Director for Public Affairs and Communications at Kerry Group plc, Director of Commercial Strategy at the RDS and Head of Corporate Affairs at Ibec.
Siobhán has represented Irish business on Government taskforces and advisory committees. A former member of the National Economic and Social Council, she has also been a strong advocate for social and business change at the Organisation for Economic Co-operation and Development (OECD) in Paris and the European Commission in Brussels. Siobhan also brings Non-Executive Director experience having held positions on the Boards of Business in the Community and Chapter Zero Ireland, a global initiative supporting business leadership on climate governance.
Siobhán holds a Postgraduate Degree in European Economics and Public Affairs from University College Dublin and the European Institute University in Florence Italy. She also extensive executive education including a Diploma in Leadership, Business Administration and Management from INSEAD Business School.

Stephen Jackson is Head of Customer and Marketing at PTSB (formerly Permanent TSB plc). With over 20 years’ experience driving global brand growth, building award winning teams, and delivering market leading performance, Stephen is renowned for his strategic, customer centric approach to marketing and business leadership.
Before joining PTSB, Stephen held senior leadership roles at several prominent international and domestic brands, including Vodafone, Lexus, and Davy Group. He has deep expertise in brand and culture transformation, helping organisations enhance both customer experience and business outcomes.
Stephen holds a Master of Science in Marketing and Analytics from Technological University Dublin, a Professional Diploma in Executive Coaching from University College Cork, and is a graduate of the Irish Management Institute.

We are delighted to welcome Gary, Siobhán, and Stephen to the Board. Each appointee brings unique perspectives and invaluable industry expertise to the role. As the advertising landscape continues to evolve, their guidance will be instrumental in advancing our mission to foster trust in advertising for all.
Orla Twomey, Chief Executive of the Advertising Standards Authority
Gary, Siobhán, and Stephen each bring a wealth of experience and valuable insights from their respective careers, reflecting the diverse voices contributing to the Board’s deliberations. On behalf of myself and the entire Board, I’d like to wish them every success in their new roles as we continue our work safeguarding consumers from advertising that is harmful, offensive, or misleading and ensuring care and compliance across the advertising industry.”
Miriam Hughes, Chair of the Board