Hidex
Expertise in fluorometers, photometers, liquid scintillation counting, gamma counting, instruments for direct measurement of light, products for bioanalytical research, radiation monitoring, contracting research and development
http://www.hidex.com/

PerkinElmer
PerkinElmer Life and Analytical Sciences
http://las.perkinelmer.com/catalog/Category.aspx?CategoryName=Radioactivity

Spectrun Techniques
Geiger tubes and scintillation counters incorporated into complete assemblies including sample stands and shielding for spectroscopy applications.
http://www.spectrumtechniques.com/detectors&stands.htm

Chambers Electronics
People Counters by Chambers Electronics
http://www.chambers-electronics.com/

Far West Technology
Ion chambers, gas single wire counters, GM counters, gas filling systems.
http://www.fwt.com/detector/prod_det.htm

Redington Counters, Inc.
Redington is a manufacturer of Counters, Hour Meters, Indicators and Controllers using innovative design and state of the art technology.
http://www.redingtoncounters.com

Laboratory Technologies, Inc.
Manufacturer of gamma counters, wipe test counters, and radioactive sample analyzers.
http://www.labtechinc.com/

Easy Hit Counters
Free hit counters for your website or weblog. Several designs available.
http://easy-hit-counters.com/

Semacon International Industries, Inc.
Semacon produces a quality line of currency counter and coin counter equipment.
http://www.semacon.com/

A-Counters
Free counters & web statistics
http://www.a-counters.com