Former senior executives at Ventia, one of Australia's largest defence and infrastructure contractors, have made explosive allegations in Federal Court proceedings claiming a workplace culture of bullying, intimidation and psychological "mind games" so severe that staff suffered breakdowns and attempted suicide. The case, centred on claims brought against the company, alleges that toxic management behaviour was allowed to flourish largely unchecked despite Ventia's role delivering essential services on sensitive government and military contracts, raising questions about oversight and duty of care within a firm entrusted with national defence work.

Court filings reportedly include a warning that "we will see blood on these walls," used to characterise the atmosphere of fear described by former staff, alongside accounts of alleged harassment and manipulation tactics directed at employees. The allegations, linked to executive Lena Parker and others, describe a pattern of conduct former insiders say went well beyond ordinary workplace friction, prompting scrutiny of how such a high-profile contractor managed complaints and staff welfare internally.