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
Senior Manager, Sales & Marketing | Certification Europe

As Senior Manager for the Sales and Marketing Division of CE, Rob has built and maintained a wide range of client relationships across a diverse portfolio of over 100 public and private sector organisations. His client base includes An Garda Síochána, South Dublin County Council, United Laboratories, Abbvie, Malinkrodt, Facebook and PWC.

Rob has a sophisticated understanding of building cross-functional teams around each client account incorporating team skills, disciplines, and expertise to exceed client satisfaction.

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.

Guaranteed Irish team
Colm Nolan
Events and Membership Manager

Colm joins the team as our Client Relationship Coordinator, planning and executing all aspects of our events and webinar calendar whilst building and maintaining relationships with new and existing members.

With over 8 years of event management and customer service experience in both B2B and B2C markets Colm has worked with a number of Irish SMEs and MNCs both in Ireland and internationally.

Colm holds an MA in Business and Entrepreneurial Management from the New York based, University of Chester and a BSc in Business and Management from TU Dublin.