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The security industry is large and diverse. According to Lehman Brothers Security Industry Annual Report, the security industry’s total revenue is estimated at $100 billion, including national and international revenues. The industry is divided into two major sectors: security services and security equipment. Security services accounts for $30-45 billion and security equipment accounts for $40-50 billion, approximately. Both sectors have undergone considerable consolidation of late. This trend should continue as large operators seek to increase market share and/or increase expertise in specialty areas.

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