| February 2019 | Partnership | The company formed a partnership with Regional Medical Center (RMC) of Orangeburg, South Carolina, US. Under the terms of the partnership, Quest Diagnostics will provide management expertise, laboratory equipment, reference testing, supplies, and procurement processes for RMC. |
| September 2018 | Partnership | Quest Diagnostics partnered with Houston Healthcare to deliver innovative laboratory services. With this, the company aims to brace its position in the market. |
| September 2018 | Acquisition | Quest Diagnostics completed the acquisition of US laboratory services business of Oxford Immunotec. |
| August 2016 | Collaboration | The company collaborated with AncestryDNA. The collaboration helps it to scale up its testing services. |
| January 2020 | Acquisition | Quest Diagnostics acquired Blueprint Genetics, a specialty genetic testing company situated in Finland, Europe. This acquisition will help the company in expanding access to genetic and rare disease testing, improving patient care, and pharmaceutical drug development research & development. |
| December 2019 | Acquisition | Quest Diagnostics acquired the clinical laboratory services business of Boston Clinical Laboratories (BCL), a regional provider of laboratory services. This acquisition strengthens the company’s ability to deliver innovative, high-value diagnostic services to providers as well as patients in the Boston metropolitan area. |
| February 2019 | Acquisition | Quest Diagnostics acquired the clinical laboratory services business of Boyce & Bynum Pathology Laboratories (BBPL), a provider of diagnostic and clinical laboratory services in the US. This acquisition will aid the company in providing pathology services to the clients of Quest Diagnostics in Missouri and Midwestern regions. |
| October 2018 | Acquisition | Quest Diagnostics acquired the outreach laboratory services operation of Hurley Medical Center, a healthcare service provider (US). This acquisition will aid in strengthening the diagnostic services and reaching out to more providers and patients in Michigan & Midwest. |
| September 2018 | Acquisition | Quest Diagnostics acquired PhenoPath, specialized anatomic pathology (AP), and related services provider (US). This acquisition will aid the company in accelerating the growth in advanced diagnostics. Also, it will strengthen the portfolio of pathology and molecular oncology. |
| February 2018 | Acquisition | Quest Diagnostics acquired Mobile Medical Examination Service (MedXM), a home-based health risk assessment and related service provider. This acquisition will aid the company in strengthening mobile provider capabilities and population health management solutions for health plans. Also, it will boost the company’s extended care services. |
| May 2017 | Acquisition | Quest Diagnostics acquired outreach lab services operation of PeaceHealth Laboratories, a non-profit organization providing health system offering care (US). This acquisition will aid in expanding the network of patient service centers and other specimen collection sites in Washington, Oregon, and Alaska. |