” Following its work in Iraq securing oil company assets, Control Risks generated $223. 32 million in revenue in 2010. Canadian firm GardaWorld claims to be the “largest privately owned security company in the world. ” The company’s headquarters are in Montreal, Quebec, but it employs around 45,000 people across North America, Europe, Africa, Asia, Latin America and the Middle East. GardaWorld secures individuals and resources in at least 140 cities and protects 28 North American airports. Its international protective services department aims to safeguard “clients in complex and emerging markets.