This book presents six private military companies and / or private security companies. The analyzed companies are: DynCorp International, Triple Canopy, Academi, G4S-Romania office-, Securitas-Romania office-, BGS Romania. The analysis was designed in an own pattern, chasing elements such as: company history, services that can be provided, the company&#39;s revenue, internal regulations and codes of conduct, the impact on civil society, employment opportunities, criticism. Information was obtained through the Open Source Intelligence, quality being thus guaranteed.<br /><br />Besides these analyzes, at the end of the book you will find two chapters on two very important jobs today: intelligence officer and private investigator.