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Optical Scientific, Inc. was founded in 1985. We are a research, development, engineering and manufacturing firm located in the I-270 high technology corridor outside of Washington, DC. OSI has been developing the worlds most advanced scintillation ...

Trinity Consultants® assists the regulated community with environmental permitting, compliance management, and EHS information technology solutions. Trinity also advises on environmental performance and risk management issues such as sustainability, ...

Purafil’s engineered clean air solutions - for improving indoor air quality, controlling corrosion, eliminating odors and preventing toxic gas releases - have been trusted worldwide for over 40 years. Purafil is a single-source manufacturer of ...