Professional Safety Engineers
Risk Management Consultants



Jack Hennessy & Co. was set up in December 1997 to provide risk management and safety engineering services in Ireland.  A number of years later we founded WindSafety to provide a specialist safety engineering service to the wind energy sector and to focus on high value utility projects.

We have built a solid reputation with our Irish, UK, Dutch and German clients based on experience, technical and legislative knowledge, and attention to detail.  All our wind farm and utility projects have been constructed without one serious injury.


Our expertise and experience means we provide intelligent, practical solutions for our clients, which have earned us a reputation for successfully delivering and providing value for money.



Our founder and principal, Jack Hennessy started the firm in December 1997.

Jack was admitted as a Corporate Member of the Institution of Occupational Safety & Health, 1998;
admitted as a Member of the International Institute of Risk and Safety Management, 1999;
admitted to the Register of Safety Practitioners, Institution of Occupational Safety & Health, 2005;
installed as a Chartered Member of the Institution of Occupational Safety & Health, 2005; elected as a Professional Member of the American Society of Safety Engineers, 2006; and admitted as a Member of the European Society of Safety Engineers in 2018.


Appointed by the National Standards Authority of Ireland as an expert member to the Risk Management Consultative Committee TC30 for the development of ISO 31000 – the international standard on risk management (mirror committee of ISO/TC262), 2015 to date.

Guest lecturer, The Insurance Institute of Ireland, Autumn/Winter Lecture Series, 2016.

Guest lecturer, Association of Irish Risk Management, 2015
Level 8 Degree in Occupational Safety & Health 1998. Awarded by: National Examination Boards in Occupational Safety & Health, Leicester, England.
Level 8 Degree in Philosophy and Theology 1983-1989. Awarded by Pontifical University Maynooth.
Temporary Traffic Management Designer, Lantra Awards Sector Schemes 12A/B/D
Abseiler, Tower Climber and Rescuer
OHSAS 18001 Lead Auditor
ESB Networks Induction
ESB Networks Stations Handbook
Northern Ireland Electricity (competent person course)

The Insurance Institute, Galway, Autumn/Winter CPD Series 2016
Topic: Wind Farm Risk Management.
Declan Earls (WindSafety), John O'Donoghue (Managing Director, Owens McCarthy), Jack Hennessy (Speaker)

Reaction to our seminar at the Insurance Institute lecture series:
Very interesting subject and he obviously is very knowledgeable in his field.
He presents the information in a manner which reflects his expertise.
Very engaging. Entertaining. Held the interest of the room.
Interesting topic; presentation was easy to follow.
Very good mix of script and picture examples within the presentation.