Messinger is former acting chief executive of Coventry City Council and corporate director of customer and workforce services and head of human resources at the council. She emerged from a very strong field of candidates, demonstrating considerable financial and management experience and corporate leadership and governance in complex stakeholder environments, said IOSH.
Also a non-executive director and vice chair of Northamptonshire Healthcare Foundation Trust, Messinger was previously a trustee of Keyring -- a national charity for adults with learning disabilities. She is a fellow of the Chartered Institute of Personnel and Development.
One of Messinger's first tasks when she takes up her new post in October, succeeding interim chief executive Cyril Barratt, will be to guide IOSH through its adoption of a new five-year strategy.
IOSH chair of board of trustees Bill Gunnyeon said: "Through its membership, training, research, campaigns and public affairs activity, IOSH has a profile and complexity that requires strong, agile leadership.
"I'm delighted, therefore, that we've been able to appoint someone of Bev's calibre. The panel was greatly impressed by her and I'm extremely confident that she will be an excellent Chief Executive, perfectly suited to taking IOSH on the next stage of its journey. I am looking forward very much to working with her."
Messinger said: "Having managed health and safety across different workplace settings, I know at first-hand how IOSH and its members make a difference to the wellbeing of people at work.
"I am delighted to be joining the IOSH team and look forward to working with staff and members to deliver our next five-year strategy and achieve the goal of a healthy workplace for everyone, every day."