ISS Fluorescence and Biomedical Instrumentation
ISS is the leader in the development of fluorescence and near-infrared spectrometers for research applications.
http://www.iss.com/

SMCS
A range of microscope based systems and specialised forensic science instrumentation, SMCS also provide microscope training courses.
http://www.smcs.co.uk/

Photon Technology International, Inc.
Commercial web site for Photon Technology International, Inc., a manufacturer of photonics instrumentation.
http://www.pti-nj.com/

XRF Corporation
XRF Corporation provides complete radiation detection & analysis systems for homeland security, first responder, nuclear power, environmental and medical applications. Our products utilize unique solid state CdTe detectors which provide superior detection and identification capabilities. Learn more about the ICS-4000 Radionuclide Identifier product line and our EVA-1 Radiation Alarm for vehicles.
http://www.xrfcorp.com/

Applied Photophysics
Applied Photophysics: Manufacturer of the Chirascan CD spectrometer, stopped-flow and other kinetic absorption, fluorescence and circular dichroism spectrometers.
http://www.photophysics.com

K-Alpha Instruments GMBH
Die K-ALPHA INSTRUMENTS GMBH fertigt und vertreibt wellenlängendispersive Röntgenfluoreszenzspektrometer zur zerstörungsfreien Elemente-Analyse an unterschiedlichstem Probengut.
http://www.xray-analytik.de/

McPherson, Inc.
McPherson, Inc. manufactures Instruments and Systems for Spectroscopy through the optical electromagnetic spectrum. We design and build tools that measure the frequency and intensity of light wavelengths / rays with good spectral resolution over a wide free range. McPherson instruments are available for teaching, physics and astronomy applications through the X Ray, Vacuum, UV, Visible and Infrared (IR, including MWIR and LWIR) wavelengths. Vacuum and ultra high vacuum (UHV) models are available in most designs. McPherson delivers laboratory spectrometers for fiber optic, Raman, reflectance, transmittance and absorbance. Our imaging spectrographs are for plasma diagnostics and optical monitoring. For broadband, full spectrum, color and spectral line instruments consider our monochromator spectral test stations. In addition, our applied systems to meter detector response, and analyze lighting, filters, glass and chemicals or control (ultraviolet or full spectrum) radiation generated from light sources. We like to offer workstations to allow your spectrum determination and analysis in the teaching and research science lab. We offer unique light measuring tools like the quartz prism monochromator and novel accessories like broadband, spectrally agile reflective telescopes to complement your system. We also repair and recondition used spectrometers and monochromators (built by McPherson, Inc.)
http://www.mcphersoninc.com/

Metallurgical Solutions
Ontario, Canada
http://www.metlabsolutions.com/

Fluorescence microscopy using LEDs
A look at an amateur scientist's experiments using LED fluorescence
http://www.viewsfromscience.com/documents/webpages/led_fluorescence.html

Edinburgh Instruments Ltd
Manufacturers of steady state and time resolved fluorescence spectrometers using single photon counting and time correlated single photon counting techniques. Laser flash photolysis also available.
http://www.edinst.com/ei/index.htm