Southwest Sciences

Advancing Research & Developing Technology in the Physical Sciences

Two-time winner of the R&D100 Award and the Tibbetts Award

Southwest Sciences, Inc. was established in 1985 to conduct basic and applied research in the physical sciences. We perform research and develop technology in combustion, atmospheric chemistry, imaging, and optical sciences. We specialize in the development of state-of-the-art optical and mass spectrometric technologies and the extension of these technologies into the marketplace. Our major customers are the United States government and private industry.


Six Ph.D. scientists with over 200 years of combined experience

Southwest Sciences has invested in patents for the intellectual property arising from our research. These patents form the basis for the broader commercialization of this technology through licenses to third party instrument manufacturers.

SC Hawk Southern Cross for hand-held natural gas leak detectors

Services & Products

SwSpectrum software

R&D Services

OTS 100 Gas Analyzer

Measure trace gases with confidence! Our benchtop diode laser-based analyzer is perfect for laboratory and industrial gas measurement applications. Available for a variety of small molecule gases, it is affordable, fully automated, compact, and weighs less than 8 lbs.

SwSpectrum software

SWSpectrum Software

SWSpectrum provides absorption and wavelength modulation spectra for mixtures of any of 50 gases as a function of temperature, pressure, path length and spectral range. Use to predict experimental measurements or find spectral interferences. A powerful but easy-to-use program based on the HITRAN database.

UAS 100 Greenhouse Gas Instruments

is a self-contained sensor for measuring trace amounts of a selected gas using diode laser optical absorption with wavelength modulation spectroscopy (WMS) detection. This sensor is designed to operate attached to a small unmanned aircraft system (UAS).