heres a list from wikipedia
[edit] U.S. companies
3D Global Solutions (Website)[19]
Aedion
Alpha Point Security (Website) Armed Security, UAV-Intelligence (ISR) and Consulting... defense against piracy, terrorists and rebels.
AQMI Strategy Corp
Blackwater USA (Website)
Braddock Dunn & McDonald (BDM) long-established defense contractor purchased in mid-1990s by TRW and onsold to Northrop Grumman in December 2002
C3 Defense, Inc. (Website)
CACI - California Analysis Center, Incorporated
Critical Intervention Services paramilitary Security Agency based out of Clearwater, Fl.
Berodt Dynamics, Defence contractor from Iowa
Defion Internacional, (Website)
DynCorp, (Website)
Eastern Cross
Elite Security Corps
ITT Corporation
ISCS International
International Security Instructors, (Website)
Kellogg Brown and Root - Division of Halliburton
Landmine Sourcing - Global PMC Recruiters (Website)
Military Professional Resources Inc. (MPRI) (Website)
ManTech International Corporation
Northbridge Services Group
Northrop Grumman
Overwatch Protection Solutions International, (Website)
Paratus World Wide Protection, (Website)
Ronin Worldwide Executive Protection, LLC, (Website)
Raytheon
SCG International Risk (Website)
SkyLink USA, affiliated with SkyLink Aviation [20]
SOS Temps, Inc founded by former Navy Seal Richard Marcinko.
Spartan Consulting Group (Website)3
Tactical Response Services paramilitary Security Agency based out of Tampa, Fl.
Titan Corporation
Top Cat Marine Security (Website)
Triple Canopy, Inc. (Website)
Vinnell Corporation
VIP Investigations & Protective Services Inc. (Website)
EUBSA BV Inc. STOP units - Special Tactics and OPerations (Website)
Pathfinder Security Services
[edit] U.K. companies
Adson Holdings, (registered in Guernsey) – owners of Sandline International
Aegis Defence Services, (Website)
AKE Group, (Website)
Armor Group, (Website)
Branch Energy Ltd, (registered in the Isle of Man)
Corporate Warriors - Division of the Brillstein Security Group, (Website)
Defence Services Ltd,
Erinys International, joint South Africa-Britain
Gurkha Security Guards, (registered in Guernsey)
Hart Security Limited
Hostile Control Tactics, (Website)
Sandline International (ceased operations on April 16, 2004)
Plaza 107
Securiforce
[edit] Others
Diamond Works, Canada (purchased Branch Energy in 1996)
Executive Outcomes, South Africa (ceased operations on January 1, 1999)
IPIH (risk analysis, technology research and cyber-security), Israel-USA (Website)
Levdan - Israel
Meteoric Tactical Solutions, South Africa
Olive Group (Website)
Omega Group - Norway
Omega Security Solutions -South Africa
Strategic Resources Corporation, South Africa
OMEGA SERVICES pmc- Russia/Ukraine. Ex- Russian SpN VMF, PDSS, Marines personnel. (Website)