Gearóid O' Tiarnaigh
Engagement Manager & Executive Coach

Gearóid is an Engagement Manager and Executive Coach specialising in utilities, infrastructure, and complex public service environments. With over 30 years of leadership experience across regulated utilities, defence, and healthcare, he brings disciplined execution and a coaching-led approach to organisational change and performance improvement. 

A former Captain in the Irish Defence Forces, Gearóid is known for operational precision and the ability to mobilise leaders and teams at pace in high-pressure, highly regulated settings. He specialises in translating strategic intent into measurable action, ensuring change is delivered at every level of an organisation. 

Gearóid has worked extensively with leaders and teams to rebuild trust and elevate performance through structured coaching conversations that shift mindsets, behaviours, and organisational culture. His impact includes:

  • Enabling Scottish Water’s Capital Programme to start projects on site 50% faster and at 30% lower cost
  • Reducing customer complaints by 48% in a UK water company while lowering regulatory exposure.
  • Delivering 15% TOTEX savings and a 50% reduction in customer interruptions within a major UK power distribution business, generating over £2 million in savings

As part of VISION’s work with the HSE during COVID-19, Gearóid played a key operational and coaching role in the national response, establishing eight Contact Tracing Centres in eight days and training 5,000 vaccinators within five months.

Known for building trust quickly and staying through implementation, Gearóid strengthens leadership capability, reduces waste, and improves business performance, always focused on sustainable, measurable outcomes.

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