The Resonance Team

Denis Doyle - Resonance Coach

Denis Doyle
BE (Elect), MEng. Sc, PhD (microelectronics), PrDipBusExecC

Founder & Principal, Executive Coach

Denis Doyle is an EMCC accredited Executive Coach, having completed his Postgraduate Diploma in Business and Executive Coaching from UCD Michael Smurfit Graduate Business School in 2022. Through his company Resonance, Denis has provided over 200 hours of one on one coaching to senior executives in the multinational and private sectors. Throughout his corporate career, helping individuals achieve their potential while enjoying their journey, has been his most rewarding experience.

Denis Doyle is also currently Board Chair of The Tyndall National Institute. Tyndall is a leading European research centre in ICT (Information and Communications Technology), based at University College, Cork. The institute employs 600 researchers, engineers and support staff, including 150 full-time graduate students.

For 30 years, Denis defined and developed major technologies in the Semiconductor Industry. He has run large and complex silicon manufacturing facilities both in Ireland and in the United States, with complex global supply chains. He is a key strategic thinker in defining roadmaps for future technologies. He has played a major role in large-scale Mergers and Acquisitions and has led major organizational transformational change projects such as pension reform in Ireland. He has served as a Fellow, Vice President and the Irish GM of a major US multinational technology company.

Denis’ multifaceted, varied, global career experiences form the backbone of his consulting and coaching practice as he resonates and identifies easily with situations individuals, groups and enterprises are experiencing.

Marguerite Doyle - Resonance Coach

Marguerite Doyle
BSc, PhD (Chem), Dip Safety, Health and Welfare at Work, Dip Corporate Governance

Executive Coach & Business Consultant

Marguerite is the former Managing Director of Heraeus Metal Processing Ltd (HMPL), based in Shannon. HMPL specialises in developing and manufacturing precious metal chemical solutions, generally used as catalysts, for many industries including aerospace, automotive, general chemical processing and in the growing hydrogen economy.

With over 30 years of experience in the chemical and associated industries, Marguerite is a strategically focused executive, business leader and technology expert. Throughout her career, Marguerite has been a champion of, and role model, for talent development, inclusion & gender equality and has mentored several executives to achieve their potential.

Marguerite is currently a member of the Governing Body of TUS and is also a member of the Institute of Directors Ireland. She is a former Chairperson of the 32nd Limerick Scout Group, a current venture scout leader, and a registered volunteer with Special Olympics, Ireland.
Marguerite received her Batchelor of Science and Doctorate in Chemistry Degrees from University College, Cork. She also holds a Diploma in Health and Safety and Welfare at Work from the University of Limerick and a Diploma in Corporate Governance from Glasgow Caledonian University. She is currently undertaking a Post Graduate Diploma in Business and Executive Coaching at the UCD Michael Smurfit Business School.

Geraldine Murphy - Resonance Coach

Geraldine Murphy
MSc., MBS (International Marketing), C.Dip. A.F., Dip. Business & Executive Coaching


Geraldine is founder and managing director of Evolution Partners and specialises in providing advisory and coaching support to executive teams.

With over 30 years of experience as a senior leader in pharma, she has led many transformational projects at national, European, and global levels delivering impressive revenue and profit growth while transitioning organisations through complex change. She has significant experience in building and leading senior teams in Ireland, the UK and internationally both in manufacturing and commercial operations.
She is a non-executive director on the board of the Royal Victoria Eye & Ear Hospital and is Chair of the Quality and Safety Committee.

A strong advocate for the advancement of women in STEM, she is Vice President of the Healthcare Businesswomen’s Association (Dublin Chapter).

Along with qualifications in science and business, she is also a qualified Business and Executive Coach and is accredited by the European Mentoring and Coaching Council (EMCC).

Executive Coaching

Executive Business Consulting

Leadership, Cultural Integration & Change Management