| SIC Codes: | 7381 |
| NAICS Codes: | 561611 |
The US surveillance, investigation, and security consulting industry includes about 5,000 firms with combined annual revenue of about $4 billion. Major firms include FTI Consulting and Kroll. The industry is concentrated: the top 50 firms account for about 55 percent of industry revenue.
Demand is driven by the needs of businesses, nonprofit institutions, and government agencies for outside advice on risk assessment and mitigation. The profitability of individual firms depends on the efficiency of their operations and their ability to maintain a steady flow of business. Large firms have advantages in being able to offer broad ranges of services and to take on more complex projects. Small firms can compete effectively by specializing. The industry is labor-intensive: average annual revenue per worker is about $95,000.
Major services include legal investigation services (nearly 30 percent of revenue), corporate investigation services (20 percent), and insurance investigation services (18 percent).