Mark Byrne became Chief Executive of Chime in 2016. He has overall responsibility for the development, strategic direction, management and funding of the organisation, and reports to the voluntary Board of Directors, with whom he works closely. From 2009 to 2016, Mark worked with Focus Ireland — beginning as Finance Director, he was appointed Acting Chief Executive in 2013 and became Property Director in 2015. He qualified as an accountant in 1998 after training with KPMG and spent over 10 years working in senior finance roles in the corporate sector. Read a message from CEO Mark Byrne here.

Siobhan Cole is the Director of Community Services, with responsibility for all Community, Audiology and Technology Services. Siobhan has 15 years' experience working in the Disability Sector, specifically in Residential services with Adults and Children. Siobhan has a degree in Applied Social Studies in Social Care and holds a level 9 certificate in Non-Profit Leadership and Management.

Danielle has responsibility for the advocacy and communications goals of the organisation. With almost 20 years’ experience working in social justice in the non-profit sector, Danielle has advocated for positive change in policy and legislation for marginalised groups experiencing social exclusion, homelessness, poverty, gender-based violence and human trafficking. Danielle holds a master’s in European Social Policy and a Level 9 certificate in Non-Profit Leadership and Management.

Alison McCallion brings over 10 years of leadership experience within the healthcare/disability sector, including serving as Interim CEO at Central Remedial Clinic for 19 months. She has extensive experience leading strategic, operational, and cultural transformation across disability services, including day and residential services, CDNTs, and specialist services. Alison is passionate about healthcare, education, inclusion, and continuous improvement, with a strong commitment to amplifying the voices of service users and supporting people to advocate for themselves, make informed choices, and shape the services they receive. She holds a Masters degree in Community and Adult Education.