Our Growth Team

Accelerating Company Growth Ltd (ACG) is a Leadership Training and Coaching company based in Ireland working with local and international corporate clients to accelerate company growth through leadership development.

ACG is the largest training and coaching firm in Ireland solely focused on leadership development. Our vision is “to deliver measurable results in Accelerating Company Growth, by offering compelling learning tools, services & coaching, focused on practical, experience based learning”.

ACG design and deliver a number of innovative training programmes, targeted at the leadership teams of companies that want to accelerate their growth. These programmes are underpinned by Executive Coaching from experienced coaches / mentors who have extensive experience in industry and as successful entrepreneurs.

ACG is owned and operated by 5 Qualified Executive Coaches who each have a unique area of skill and expertise that complements the team to bring the highest quality leadership training in Ireland.


Brendan DowlingBrendan Dowling, Chairman ACG: is an Executive Coach, Author and serial entrepreneur in the telecoms and technology sector, having built a number of successful internationally-traded companies. He has worked as a business coach with Enterprise Ireland, Invest Northern Ireland and other organisations coaching the CEOs and senior management teams of scaling companies in Ireland. He is well-known for his thought leadership and innovation in the technology sector and is a regular speaker at conferences, executive education programs and government-sponsored enterprise events in Ireland, the UK and USA. He is also the founder and CEO of Digital Trading, a company offering cloud-based Customer Relationship Engagement (CRE) technology to governments, large and SME enterprises. Brendan qualified as a chartered accountant with KPMG, has an MBA from University College Dublin, a B. Comm from University College Cork (UCC) and a Diploma in Executive Coaching from IMI & UCC.

Denis MurphyDenis Murphy, Director ACG: is an experienced entrepreneur, board member, angel investor, business coach and mentor with a proven track record of building and exiting niche software companies in the mobile telecommunications and enterprise software spaces. He has been Chairman and CEO of Anaeko, a company he co-founded in 2004, since 2009. Prior to joining Anaeko, Denis was Chairman of Mobile Cohesion, a company he had co-founded after leaving Openwave in 2002.While at Mobile Cohesion he raise $20m in venture capital and exited the company to Aepona in early 2009. At Openwave he was Country Manager for Ireland and also responsible for the development of the company’s field organization in Europe. Prior to Openwave, Denis was the Managing Director and co-founder of APiON. Phone.com acquired APiON for $250m in 1999. At that time, this was the largest acquisition in Northern Ireland’s history. Prior to APiON, Denis held a range of Sales and Partner management roles at Aldiscon (Dublin).

Denis has wide experience as a business coach and mentor. He is an entrepreneur in residence on the Springboard Program at the Northern Ireland Science Park. He has been a business coach on the Enterprise Ireland Accelerated Growth Program and the Invest Northern Ireland Team Leadership Programme for a number of years coaching CEO’s and their top teams to develop and implement growth strategies and accelerate the growth of their companies. In addition, Denis has a range of technology investments and sits on the board of QUBIS, the Queens. He is also a board member of Young Enterprise NI, a charity that promotes entrepreneurship among young people. He holds a degree in Business Studies from University College Galway, an MBA from the Michael Smurfit Business School at University City Dublin and postgraduate qualifications in computer science and management information systems. Denis also has a Diploma in Executive Coaching from the Irish Management Institute.

Dermot DuffDermot Duff, Director ACG: is an executive coach, author and lecturer. He is noted for the practical application of management “theory” and the resolution of complex business issues. He can draw on an unusual depth of experience across service industries and has successfully helped developed an array of enterprises, large and small, in Ireland and abroad. An Electronics Engineer by training, he held senior management positions in ITT Alcatel in Holland and was European Transformation Manager for Digital Equipment Corporation prior to its acquisition by HP. His early career was in Oil Exploration in Africa and the Middle East, followed by circuit design and international business development.

His success in managing significant change in these large corporations led to his appointment as Senior Specialist and eventually Executive Learning Director with the Irish Management Institute. There he ran a large portfolio of business and operations programmes, most recently in the development of small and medium enterprises. He currently leads IMI / UCC Diplomas in Management, Strategy & Innovation. Dermot is a member of the Boards of several local companies in financial services, heavy machinery, security and IT services, and continues as a business advisor and coach for Enterprise Ireland. His participation in a wide variety of management programmes has allowed him absorb the teachings of many of the world’s leading business people and academics, particularly in the areas of Strategy, Lean, Innovation and Enterprise Development.

Dermot is an Adjunct Professor (Teaching Fellow) in Trinity College School, managing the TCD MBA Strategic Company Projects, and lecturing in Operations Management and Strategy. He is also an Associate Professor in the University of Nottingham and hosts the Growth 100 business development programme there. Dermot has published numerous articles and books, including Strategic Cost Reduction (2011) and Project Management: A Practical Guide (2010), and he has recently released a major new work on Managing Professionals and Other Smart People, published by Chartered Accountants Ireland.