page_title: Quest Diagnostics
section_title: History
hierarchical_section_title: Quest Diagnostics / History
caption_attribution_description: English: Franconia, Virginia
context_page_description: Quest Diagnostics is an American clinical laboratory. A Fortune 500 company, Quest operates in the United States, Mexico, and Brazil. Quest also maintains collaborative agreements with various hospitals and clinics across the globe.
  As of 2020 the company had approximately 47,000 employees, and generated more than $7.7 billion in revenue in 2019. The company offers access to diagnostic testing services for cancer, cardiovascular disease, infectious disease, neurological disorders, COVID-19 and employment and court ordered drug testing.
caption: Interior of a Quest Diagnostics office in Franconia, Virginia
exif: {"Image ImageWidth": "3264", "Image ImageLength": "2448", "Image Make": "samsung", "Image Model": "SM-J727U", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "J727UUES5BSC2", "Image DateTime": "2019:10:07 12:42:32", "Image YCbCrPositioning": "Centered", "Image ExifOffset": "238", "GPS GPSLatitudeRef": "N", "GPS GPSLatitude": "[38, 46, 48]", "GPS GPSLongitudeRef": "W", "GPS GPSLongitude": "[77, 8, 57]", "Image GPSInfo": "680", "Thumbnail ImageWidth": "512", "Thumbnail ImageLength": "384", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "900", "Thumbnail JPEGInterchangeFormatLength": "49766", "EXIF ExposureTime": "1/60", "EXIF FNumber": "19/10", "EXIF ExposureProgram": "Program Normal", "EXIF ISOSpeedRatings": "40", "EXIF ExifVersion": "0220", "EXIF DateTimeOriginal": "2019:10:07 12:42:32", "EXIF DateTimeDigitized": "2019:10:07 12:42:32", "EXIF MaxApertureValue": "37/20", "EXIF MeteringMode": "CenterWeightedAverage", "EXIF Flash": "Flash did not fire", "EXIF FocalLength": "29/10", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "3264", "EXIF ExifImageLength": "2448", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF FocalLengthIn35mmFilm": "28", "EXIF SceneCaptureType": "4", "EXIF ImageUniqueID": "O08LSJA00AM O08LSLG03AA"}