| SIC Codes: | 7381 |
| NAICS Codes: | 561612 |
The US security guard services industry includes about 5,800 companies with combined annual revenue of about $20 billion. Top companies include as AlliedBarton and the North American operations of G4S and Securitas. The industry is concentrated: the 50 largest companies generate about 60 percent of industry revenue.
Demand is driven by the desire for companies and government entities to protect their property, employees, and merchandise. The profitability of individual companies depends on operational efficiency. Large companies enjoy economies of scale in marketing and administration; small companies can compete by specializing in serving particular types of clients or geographic areas. The industry is labor-intensive: average annual revenue per employee is about $30,000.
Major services include patrol services on foot or in a vehicle, building alarm monitoring, and ATM security services. Customers include banks, retail establishments and movie theaters, schools, businesses, governments, public transportation terminals, and apartment buildings and hotels.