About Greg Hallahan

Greg Hallahan of Secretariat is a corporate investigations expert with many years of experience working internationally. He has spent the last 23 years in Greater China. He is often engaged by clients and counsel to conduct investigations, using information obtained from cutting-edge open-source research tools, semi-publicly available resources and a global network of sources providing local intelligence. He works on business intelligence, asset tracing and due diligence engagements globally, particularly throughout Asia. He has been ranked Band 1 in Business Intelligence & Investigations (Asia-Pacific region) by Chambers and Partners every year since the rankings began.