Quest Diagnostics
NYSE: DGXSecaucus, US · Incorporated in Delaware · 2 known investors
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Quest Diagnostics is the world's leading provider of diagnostic information services, serving one in three adult Americans and half of US physicians and hospitals. The company offers diagnostic insights and testing services to consumers and healthcare providers to support health decision-making.
Founders & leadership

Investors · 2
Founder mafia
3 people who came through Quest Diagnostics went on to found or lead other companies.
Related companies · 4
Companies working in the same space as Quest Diagnostics.
Frequently asked questions
- What does Quest Diagnostics do?
- Quest Diagnostics is the world's leading provider of diagnostic information services, serving one in three adult Americans and half of US physicians and hospitals. The company offers diagnostic insights and testing services to consumers and healthcare providers to support health decision-making.
- Who founded Quest Diagnostics?
- Quest Diagnostics was founded by Paul A. Brown.
- Who are Quest Diagnostics's investors?
- Quest Diagnostics's investors include Mutual Capital Partners, Alteria Capital.
- Where is Quest Diagnostics headquartered?
- Quest Diagnostics is headquartered in Secaucus, US.





