Electronic radiation canary
- How to build a low cost Radiation Detector
- http://home.jumpjet.info/RadMeter/canary.htm

Lamse
- Manufacturer and supplier of a range of radiation monitoring equipment, also offers calibration service.
- http://www.lamse.es/english.htm

Radon
- Suppliers of continuous radon monitors based on ionization chamber technology, plus information on radon measurement and mitigation.
- http://www.radon.eu

Nu Scientific
- Distributor of range of radiation detection and monitoring equipment in Australia.
- http://www.nuscientific.com.au

SE International
- Design and manufacture of handheld radiation detectors, digital and analog.
- http://www.seintl.com

RadAl
- Wall-mount Geiger radiation monitors with alarms for integration into security and safety systems.
- http://www.radal.com

Synodys
- Radiation monitoring systems, personal dosimetry, portable survey equipment and contamination monitoring equipment.
- http://www.synodys.com

Radrisk Consulting
- Radiation protection services and equipment for security and environmental monitoring, including radiation detectors, pagers and alarms, search equipment, electronic dosimeters and portable spectrometers.
- http://www.radrisk.com/frontpage.htm

Berthold Technologies
- Handheld and fixed installation doserate monitors for the measurement of gamma and neutron radiation.
- http://www.doserate.com/

Genitron Instruments
- Radon monitoring, environmental gamma monitoring, private radio network setups, gamma dose rate meters, handheld instrumentation for electromagnetic fields.
- http://www.genitron.de

Radon Analytics
- Various radon measuring devices for use in indoor air, soil gas and in water, differing in the kind of the measuring system, in sensitivity and in handling.
- http://www.radon-analytics.com

BNC
- Handheld and portable radiation monitoring equipment, including isotope identification.
- http://www.berkeleynucleonics.com

NukAlert
- A personal radiation monitor and alarm on a key ring.
- http://www.knorad.com/

LA Devices
- Pocket size geiger counter and radiation alarm that can interface to a personal computer.
- http://ladevices.com/

Automess
- Dose rate meters with built-in Geiger Müller counters, personal dosimeters and accessories.
- http://www.automess.de/e-index.htm

Images SI
- Digital and analogue Geiger counters, available pre-assembled and in kit form.
- http://www.imagesco.com/catalog/geiger/counter.html

Landauer
- Radiation dosimetry products and services to measure exposure to occupational and environmental radiation including X-ray, beta and gamma monitors, neutron badges, and radon gas detectors.
- http://www.landauerinc.com

Nucsafe
- Neutron sensitive scintillating glass fibre sensors, neutron detection systems for nuclear safeguards and security applications.
- http://www.nucsafe.com/

Direct Scientific
- Survey meters, area monitors, portal monitors, ion chambers, and multi-channel analyzers. New and pre-owned equipment.
- http://www.drct.com/

Black Cat Systems
- Manufacturers of computer-based geiger counters for alpha, beta, gamma, and x-ray radiation measurement and monitoring.
- http://www.blackcatsystems.com/GM/

Mineralab
- Suppliers of a selection of handheld Geiger counters. Information on mineral identification using handheld radiation monitors and other applications.
- http://www.geigercounters.com/

Pylon Electronics
- Radon and Thoron gas detectors for environmental monitoring. Also provides electrical and mechanical repair and calibration services.
- http://www.pylonelectronics.com/

Femto-Tech
- Radon and tritium detection instrumentation for home inspectors and radon professionals.
- http://www.femto-tech.com/

Sun Nuclear
- Contamination monitors, Radon detection systems, dosimetry equipment including in vivo dosimetry products
- http://www.sunnuclear.com/home.asp

Rad Elec
- Manufactures passive integrating electret ionization chambers for measuring ionizing radiation (alpha, beta, gamma, neutrons) and radioactive gases/vapors (radon, thoron).
- http://www.radelec.com/

Aware Electronics
- Makers of PC based and stand alone Geiger counters, Radon monitors, as well as other monitors for use with PCs.
- http://www.aw-el.com/

Novelec
- Range of environmental radiation survey instruments including gate monitors and vehicle monitors.
- http://www.novelec.fr/descriptionUK-MSA.htm

Overhoff Technology Corporation
- Design and manufacture of radiation measuring devices, from small hand held units to complex integrated monitoring systems.
- http://www.overhoff.com/

Teletrix Corporation
- A supplier of simulated radiation meters for realism in training and emergency drills without the use of radioactive sources.
- http://www.teletrix.com/

Suntrac
- Supplier of radiation survey equipment and radiation safety support services.
- http://www.suntrac.com/sales.htm

Sunna Systems
- High-dose measurement dosimeters for use in food irradiation treatment applications.
- http://www.sunnasys.com/

RadScanner
- Personal radiation monitor. Site includes information on environmental radiation.
- http://www.antirad.com/

Polimaster
- Portable survey meters, dosimeters and portal monitors for security applications.
- http://www.polimaster.com/

Oritech
- Geiger counter that can be linked with your PC to measure background radiation and display results.
- http://www.oritech.com/rad/en/default.htm

NPL Ionising Radiation
- The National Physical Laboratory is responsible for developing and providing the UK National Measurement System in the fields of ionising radiation and radioactivity. Site provides excellent information about sources of radiation, and measurement units.
- http://www.npl.co.uk/npl/rad/

Ludlums
- Designer and manufacturer of a wide range of radiation detection and measurement equipment.
- http://www.ludlums.com/

Laurus
- Personal dosimeters, portal monitors, survey instruments and multichannel analysers.
- http://www.laurussystems.com/

International Medcom
- Hand held geiger counters for personal and professional use.
- http://www.geigercounter.com/

Harwell Dosimeters
- Manufacturer of dosimeter systems, mainly for use in the sterilisation of medical equipment.
- http://www.harwell-dosimeters.co.uk/

Eurami Group
- Handheld Geiger counter for security and personal use.
- http://www.gammascout.com/

Exploranium
- Handheld monitors, vehicle monitors, airborne and mobile radiation detection systems for environmental monitoring and emergency preparedness.
- http://www.exploranium.com/

Atomtex
- Radiation and nuclear measurement equipment including dosimeters, dose ratemeters, spectrometers, activity monitors, whole-body counters and calibration benches.
- http://www.atomtex.com/indexe.phtml

Arrow Tech
- Manufacturer of personal radiation detectors and monitors including the FEMA-designed direct reading pocket dosimeter.
- http://www.arrowtechinc.com/

Applied Techniques
- Supplies Lucas Cell-type radon counting systems for earthquake detection, hydro-dam groundwater leakage, and pollution studies of estuaries and oceans.
- http://www.atral.com/

Oasis
- Digital radiation detector and dosimeter for personal use.
- http://www.oasisllc.com/abgx/