Hunter Manufacturing Company Air filter systems for protection from nuclear, biological and chemical substances. http://www.huntermfgco.com

Microfluidic Systems Inc. Development of 'biodefense' instruments for military and commercial customers that monitor the air for pathogenic agents. http://www.mfsi.biz

Nor E First Response Inc. Manufacturer of mobile decontamination systems for NBC/WMD incident response. http://www.nor-e.com

Chemsecurity Mfg., LLC Chemical and biological warfare agent detection and identification technologies. http://www.chemsecurity.com

Consultants in Disease and Injury Control, Inc. (CDIC, Inc.) Biosecurity, bioterrorism, infection control and emerging infection consulting firm. http://www.cdiccorp.com

Clean Earth Technologies LLC Research, development and manufacture of novel technologies for the intelligence, defense, homeland security and life science sectors. http://www.cleanearthtech.com

Bruhn Newtech CBRNE / NBC and Explosives Hazard Management solutions, from training and software to surveys and equipment. http://www.bnl-cbrn.co.uk/

Engineered Support Systems, Inc. Designs, manufactures and markets nuclear, biological and chemical defense systems, air conditioning and heating systems, water and petroleum distribution systems and other ground support equipment. (Nasdaq: EASI). http://www.engineeredsupport.com/

DGT-System Ltd. Radio communications, tele-transmitting, air traffic control systems, antennas and management software. http://www.dgt-system.com