IWIS Inc. 
Specializing in counterfeit detection tools. Includes products and contacts.
http://www.iwisinc.com/Security Tree 
Counterfeit detection devices for preventing currency and identification fraud. Includes products and order information.
http://www.counterfeit-detectors.us/
SecuTag 
Supplier of counterfeit and piracy identification products.
http://www.security-codes.com/
V.L. Engineering, Inc. 
Equipment and systems for authentication for theft prevention, brand protection, anticounterfeiting and tracking using invisible marks and tracers.
http://www.vlengineering.com/
AccuBANKER 
Provides currency and bill counters, and counterfeit bill detectors.
http://www.accubanker.com/
UVeritech 
Manufactures loss prevention equipment for banks and retailers. Glendora, California.
http://www.uveritech.com
Cashscan Corp 
Produces a portable counterfeit detector for United States currency.
http://www.cashscan.com/
Check-A-Note 
Produces counterfeit banknote detectors. Includes price and contact information. Somerset, England.
http://www.check-a-note.com/
Goldstar Business Forms Ltd. 
Providers of a variety of security systems designed to prevent counterfeiting, forgery, and cheque fraud.
https://secure.goldstarbf.com/
ARmark Authentication Technologies, LLC 
USA. Development and manufacture of custom authentication systems for brand protection, product security and risk mitigation to fight global counterfeiting. Technical product brochures on PDF files. Part of Adhesives Research.
http://www.rmark.org/
Protag Retail Security 
Flexible EAS sensor tags, plus money, document and credit card counterfeit detection equipment.
http://www.protagsecurity.co.uk/