Digital Security Concepts Inc.www.guardtoursystems.com
Support Services, Inc.
Exigence Inc.
Securaplane Technologies
Roberts Protection & Investigations
Security On-Line Systems Inc.
The Protection Bureau
American Security & Investigations
Optelecom, Inc.
Rabun Labs Inc.
Intelligence & Security Services (Whittemore Assoc.)
Knightronix, Inc.
THERMO ELECTRON CORPORATION
Senoj
Bay Ridge Security Service
Lee Technologies
Jowa Assocs. Inc.
Advantor Corp.
Antx Inc.
Valley Security Services