Anthony G. Costantino

Toxicology Holdings Corp. operates as a forensic toxicology laboratory engages in substance abuse identification and services. The firm also operates a platform to build a premier toxicology laboratory with a national footprint through both organic growth and acquisitions. The company was founded in 2008 and is headquartered in Warminster, PA.

DrugScan, Inc. engages in forensic toxicology laboratory. It offers addiction management monitoring, pain-management medication monitoring, drug-free workplace testing, law-enforcement drugs and alcohol testing, and healthcare professional recovery monitoring. The company was founded in 1985 and is headquartered in Horsham, PA.

Part of Quest Diagnostics, Inc., Quest Diagnostics Nichols Institute, Inc. is a medical laboratory company. The company is based in Chantilly, VA. Quest Diagnostics Nichols Institute was acquired by Quest Diagnostics, Inc. from GTCR LLC on April 01, 2002 for $500 million.

NMS Labs provides professional, state-of-the-art laboratory diagnostic services to clinicians, members of the criminal and civil justice communities, and those researching and developing new therapeutics. It offers forensic services, clinical services and research services. The company was founded by Fredric Rieders in 1970 and is headquartered in Willow Grove, PA.