Herzog by PACA leader in reliable laboratory petroleum testing apparatus providing a state-of-the-art automated instruments.- Made in GermanyISL by PACA worldwide leader in automatic petroleum cold properties testing instrumentation.- Made in FranceAntek by PACA trusted leader in total elemental analysis, as well as speciated nitrogen and sulfur detection, Antek is the best choice for scientific analysis of liquid, solid, gas, and liquefied petroleum gas (LPG) samples.- Made in USA, NetherlandsSpectro Scientific (Wilks)Specializes in analytical tools and software for machine condition monitoring. The company is one of the largest suppliers of oil and fuel analysis instruments to industry and the military worldwide- Made in USASundySundy is the leading supplier of Coal Analysis Total Solutions. And covered to instrument testing for Biomass product (Wood Chip, Wood Pallet, etc).AlcorA leading producer of constant temperature control equipment.- Made in USA