A global investigative and security firm offering an expansive array of services and capabilities, with over 300 experts employed worldwide. TDA is the principal security consultant for several Fortune 100 and Fortune 500 companies and is one of the top security providers to the entertainment industry. Headquartered in Los Angeles, TDA has regional offices in New York, Mexico, Brazil, and Colombia. Whether conducting corporate due diligence, legal investigations, or providing elite security for client operations, TDA’s team of experienced professionals consistently surpasses the needs of our clients.