Denise Koster, B.A.A., P.H.Ec.

"People will forget what you said ... they will forget what you did … 

but people will never forget how you made them feel."

~ Maya Angelou

Denise Koster, B.A.A.; P.H.Ec. has worked in the area of violence since 1985, Denise provides management and labour groups with practical education, intensive training and consultation around the identification, assessment, investigation and management of workplace violence, code and non code harassment, sexual harassment, bullying and elder/resident abuse. 

As a trained Investigator Denise provides thorough external unbiased investigations pertaining to the areas of workplace discrimination, harassment and bullying in addition to resident/client/patient/elder abuse.

As a graduate of Gavin Debeckers’ Threat Assessment and Management Academy, Denise provides workplaces with customized threat assessments and management plans.

For nine years prior to engaging in Koster Consulting & Associates on a full-time basis, Denise was the Clinical and Program Director at a Community Health Centre, where her role was to manage a multi-disciplinary team of medical, nursing and social service professionals.


McAfee Institute


Workplace Violence & Threat Assessment Specialist Program

Gavin de Becker Advanced Threat Assessment Academy


Institute of Peace and Conflict Studies - Conrad Gerbal University Collage - Waterloo, Ontario


Alternative Dispute Resolution - Level 2

Institute of Peace and Conflict Studies - Conrad Gerbal University Collage, Waterloo Ontario


Alternative Dispute Resolution - Level 1

International School of Investigation and Protective Services



Ryerson University


Gerontology Certificate

Ryerson University

1982 – 1986

Bachelor of Applied Arts

How I can help with Workplace Violence and Elder Abuse