The Suicide Prevention Resource Center (SPRC) has posted online two information sheets for the workplace: The Role of Managers in Preventing Suicide in the Workplace and The Role of Co-Workers in Preventing Suicide in the Workplace. These sheets provide basic information to help managers and employees (co-workers) recognize and respond to people who may be suicidal or at high risk.
https://www.iasp.info/pdf/special_interest_groups/workplace/managers_sui...
https://www.sprc.org/sites/default/files/resource-program/V11_Co-worker_...