Skip to content
DGX·NYSE·US

Quest Diagnostics

Quest Diagnostics is a major U.S. provider of clinical laboratory testing, diagnostic information services, and related healthcare solutions. It serves patients, physicians, hospitals, employers, health plans, and pharmaceutical and life-science customers through an extensive national testing network.

Thematic Position

DGX

Relationship Groups

Suppliers1
Partners4
Competitors4

Relationship details are part of the Pro plan.

Ended Relationships

3 ended relationships · Ended relationships are part of the Pro plan.

Management Perspective on Regulatory & Geopolitical Developments

regulatoryFDA rulelegislative risk
FDA vacates LDT rule; Congress may enact new laboratory testing legislation
SEC 10-KFeb 26, 2026

The full regulatory passage is part of the Pro plan.

22 more · Regulatory and geopolitical insights are part of the Pro plan.