Meet our Appraisals Advisors

Jason Crawford
Partner | Grant Thornton

Jason joined Grant Thornton in 2014 as a director from a Big Four firm and has over 19 years’ experience in providing audit, assurance and technical accounting advisory services to large listed corporates and indigenous private business alike.

Jason’s extensive experience includes managing complex multi-jurisdiction audit engagements for multi-national and listed groups as well as advising these corporates on technical Irish/UK GAAP and International Financial Reporting Standards (IFRS) matters.

Rob Lyons
Sales & Marketing | CGBC

Rob has a proven track record of developing and implementing strategic approaches ensuring robust client management for a wide range of products & services including International Standards.

Rob has a sophisticated understanding of building cross-functional teams around each client account incorporating team skills, disciplines, and expertise to exceed client satisfaction. As a result, Rob has retained a wide range of clients from key industries.

Mark Keller
International Sales & Marketing Director

Mark is an accomplished International Sales & Marketing Director with over 20 years of building business across complex markets for multiple industries including Dairy Food Ingredients, Luxury Goods, FMCG and Telecommunications.

Mark’s extensive experience includes building high performance international sales teams, managing distributors and agents across the APAC and African regions, brand and product development, qualitative and quantitative research, and instore visual impact. 

Mark has previously served on the Board of Directors at Guaranteed Irish joining in April 2017 until December 2020.

Karen Deignan
Director and Co-Founder | SustainabilityWorks

Karen is a Co-Founder of SustainabilityWorks, a consultancy on a mission to accelerate Ireland’s transition to a sustainable future. She specialises helping businesses develop their sustainability strategy and communicate their sustainability story to employees, customers, investors and other stakeholders.

Over the last 20 years she has advised multinationals and SMEs in many different industry sectors across the UK and Ireland, the US and Europe. Her strength lies in making the complex world of sustainability simple and engaging, so that people at all levels in an organisation are empowered and motivated to take action.

Rowena Guarateed Irish
Rowena Maher

Membership & CRM Executive I Guaranteed Irish

Rowena joined the Guaranteed Irish team in February 2020 where she carries out the role of Executive Assistant to the CEO. She recently graduated from University College Cork with a MSc degree in Food Marketing and a Bachelor’s in economics and loves the concept of supporting Irish. 

Rowena has worked alongside small start-up Irish businesses where she developed and maintained client relationships, was responsible for content creation and undertaking marketing campaigns.