Biological Chemical Decontamination Systems. Inc: Decontamination supplies, emergency response equipment and hospital decontamination equipment.Bruhn Newtech: CBRNE / NBC and Explosives Hazard Management solutions, from training and software to surveys and equipment.Chemsecurity Mfg., LLC: Chemical and biological warfare agent detection and identification technologies.Clean Earth Technologies LLC: Research, development and manufacture of novel technologies for the intelligence, defense, homeland security and life science sectors.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).Hunter Manufacturing Company: Air filter systems for protection from nuclear, biological and chemical substances.Microfluidic Systems Inc.: Development of 'biodefense' instruments for military and commercial customers that monitor the air for pathogenic agents.Nor E First Response Inc.: Manufacturer of mobile decontamination systems for NBC/WMD incident response.