York Analytical Laboratories, Inc. (YORK) is the environmental laboratory of choice in the Northeast U.S. A full-service laboratory with eight locations in New York, Connecticut and New Jersey, YORK provides comprehensive, expert analysis of air, soil, groundwater, wastewater and drinking water for regulated contaminants, with unmatched expertise in PFAS. YORK is a NELAC accredited Laboratory, with comprehensive licenses in Connecticut, New York, New Jersey and Pennsylvania, and has PFAS licensing in six states. Pioneers in the air pollution measurement business with roots dating back to the early 1970's, YORK was acquired in 2024 by the global testing company, ALS Limited, to accelerate its expansion and PFAS leadership in Northeast U.S. YORK Mission - Providing superior service that allows our clients to receive their results in the format and time frame needed. - Extensive experience and availability of seasoned professionals to provide clients with invaluable technical support related to regulatory programs, project planning, and data interpretation. - Leading the region in knowledge, testing, and instrumentation for PFAS and emerging contaminants.