3M Microbiology Products (Minnesota), http://www.mmm.com/microbiology
Aquionics, Inc. (Kentucky), http://www.aquionics.com/
Best Sanitizers (California), http://www.bestsanitizers.com
Biotest Diagnostics Corp. (New Jersey), http://www.biotest.com
Blagoyevich Consulting Services (California), http://klarify.com/bcs.htm
Brevis (Utah), http://www.brevis.com
California Microbiological Consulting, Inc. (California), http://nauticus-usa.com/consul5.html
Celsis, Inc. (New Jersey), http://www.celsis.com
Charm Sciences, Inc. (Massachusetts), http://www.charm.com
Chemland, Inc. (California), http://www.moomilk.com/fence/chemland.htm
Clark Pest Control (California), http://www.clarkpest.com
Compliance Control HyGenius (Maryland), http://www.hygenius.com
Copesan Services (Wisconsin), http://www.copesan.com
Cornell University Distance Education Program (New York), http://www.cornell.edu/distance
Crane Pest Control (California), http://www.cranepestcontrol.com
Davis Fresh Technologies (California), http://www.davisfreshtech.com
DFA of California (California), http://www.dfaofca.com
Ecolab, Inc. (Minnesota), http://www.ecolab.com
Glo Germ Company (Utah), http://www.glogerm.com
Hardy Diagnostics (California), http://hardydiagnostics.com
HelioJET Cleaning Technologies, Inc. (New York), http://www.heliojet.com
IDEXX Laboratories, Inc. (Maine), http://www.idexx.com
Meritech, Inc. (Colorado), http://www.meritech.com
MGM Instruments, Inc. (Connecticut), http://www.mgminstruments.com/
Millipore Corp. (Massachusetts), http://www.millipore.com
Nelson Jameson, Inc. (Wisconsin), http://www.farmfrienddirect.com
Neogen Corporation (Michigan), http://www.neogen.com
New Horizons Diagnostics Corp. (Maryland), http://www.nhdiag.com
NSF Cook & Thurber (Michigan), http://www.nsf.org
PrimusLabs.com (California), http://www.primuslabs.com
Pulse Instruments (California), http://www.pulseinstruments.net
Richard Stier (California), http://www.stratecon-intl.com/rstier.html
Shepard Bros., Inc. (California), http://www.shepardbros.com
Spraying Systems Co. (California), http://www.spray.com
Vulcan Chemical Technologies, Inc. (California), http://www.vul.com
Western Exterminator Company (California), http://www.west-ext.com
World Dryer (Illinois), http://www.worlddryer.com