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Quest Diagnostics Incorporated, a leading name in the medical laboratories industry, is headquartered in the United States. Founded in 1967, the company has established itself as a pivotal player in diagnostic testing and laboratory services, with a strong presence across major operational regions in North America.
Specialising in a wide array of diagnostic tests, including clinical laboratory services and anatomic pathology, Quest Diagnostics is renowned for its commitment to accuracy and innovation. The company’s unique integration of advanced technology and extensive test menu positions it as a trusted partner in healthcare.
With a robust market presence, Quest Diagnostics has achieved numerous milestones, including significant advancements in genetic testing and disease management solutions. Its dedication to improving patient outcomes and enhancing healthcare efficiency solidifies its status as a leader in the medical diagnostics field.
54
DitchCarbon score
+29 vs industry average
Quest Diagnostics’s score of 54 is higher than 100% of the industry. This can give you a sense of how well the company is doing compared to its peers.
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Industry Intensity
Very Low
Medical Laboratories is among the least carbon-intensive industries
Industry performance
0.186
20182025
The Medical Laboratories industry has reduced its overall emissions by 28% since 2018
Emissions trajectory 2020 – 2027
20202021202220232024202520262027
Reported emissions
Scope 1
•••kg CO₂e
Scope 2
•••kg CO₂e
Scope 3
•••kg CO₂e
Total reported
•••kg CO₂e
Scope 3 accounts for ••• of total emissions.
Quest Diagnostics's reported carbon emissions
Quest Diagnostics reported approximately 738.4 million kg CO2e in total greenhouse gas emissions for 2024. This includes about 103.1 million kg CO2e from Scope 1 emissions, approximately 72.8 million kg CO2e from Scope 2 market-based emissions, and around 562.5 million kg CO2e from Scope 3 emissions.
For 2023, the company's total emissions were approximately 822.4 million kg CO2e, with Scope 1 emissions at roughly 113.9 million kg CO2e, Scope 2 market-based emissions at about 77.5 million kg CO2e, and Scope 3 emissions at approximately 631 million kg CO2e.
Quest Diagnostics is committed to reducing its Scope 1 and Scope 2 emissions by 30% from 2021 levels by 2030.
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Quest Diagnostics’s Climate Goals (2030 & 2050)
2025
Near-zero scope 1 & 2
Target to achieve near-zero emissions for direct operations and purchased energy
On track94%
2030
62% reduction in total GHG
Vs 2019 baseline. Validated by SBTi. Includes full supply chain.
At risk48%
2040
50% reduction in Scope 3 intensity
Across purchased goods and services and logistics.
Behind target22%
Showing SBTi-validated targets only. Sign up or sign in to see all disclosed climate targets.
Scope 3 top emissions categories
6 of 15 categories disclosedSee all scope 3 categories
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Climate initiatives
Science Based Targets Initiative
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Not active
Carbon Disclosure Project
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Active
The Climate Pledge
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Not active
UN Global Compact Climate Champions initiative
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Not active
RE 100
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Not active
Climate Action 100
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Not active
Emissions comparison with industry peers
View similar organisationsCompanyCountryIndustryLast updatedScoreDetails
Quest Diagnostics29 days ago
54
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