

At Quest Diagnostics, we are working together to create a healthier world, one life at a time. Our nearly 50,000 employees annually serve one in three adult Americans and half the physicians and hospitals in the United States. Among its major competitors, Quest Diagnostics is ranked in 3rd place for NPS while Thermo Fisher Scientific is 1st, and Foundation Medicine is 2nd. Overall, Quest Diagnostics has a neutral social sentiment, when analyzing social media channels and online mentions.Their current market cap is $15.07B
Quest Diagnostics's Net Promoter Score (NPS) is a -16 with 34% Promoters, 16% Passives, and 50% Detractors. Net Promoter Score tracks whether Quest Diagnostics's customers would recommend using the product based on a scale of -100 to 100.
| 34% | Promoters |
|---|---|
| 16% | Passives |
| 50% | Detractors |
| Summary | Date | Score |
|---|---|---|
Aug 2024 -13 | Aug 2024 | -13 |
Oct 2024 -11 | Oct 2024 | -11 |
Nov 2024 -12 | Nov 2024 | -12 |
Dec 2024 -12 | Dec 2024 | -12 |
Jan 2025 -12 | Jan 2025 | -12 |
Feb 2025 -12 | Feb 2025 | -12 |
Mar 2025 -14 | Mar 2025 | -14 |
May 2025 -14 | May 2025 | -14 |
Jun 2025 -14 | Jun 2025 | -14 |
Oct 2025 -16 | Oct 2025 | -16 |
Nov 2025 -16 | Nov 2025 | -16 |
Dec 2025 -18 | Dec 2025 | -18 |
Quest Diagnostics is ranked third for NPS among its competitors. Thermo Fisher Scientific and Foundation Medicine come in first and second, with Laboratory Corporation of America Holdings coming in at #4. Among those competitors, it is the lowest valued company behind Foundation Medicine.
![]() Quest Diagnostics | ![]() Thermo Fisher Scientific | ![]() Foundation Medicine | ![]() Laboratory Corporation of America Holdings | |
| Global Ranking | #- | #667 | #- | #- |
| NPS | -16 | 20 | 9 | - |
| Social Sentiment Calculated by analyzing social media and other online mentions | Neutral | - | Neutral | - |
| Valuation Updated every 24 hours for public companies | $15.07B | $188.21B | $237.02B | $24.00B |
Net Promoter Score (NPS) is a management tool that can be used to gauge the satisfaction of a firm's customer relationships. NPS has been widely adopted as a key metric often linked to the revenue potential of a company’s product or service. The metric is based on customer responses to the question: "On a scale of 0 to 10, how likely are you to recommend the product to a friend?"
Those who respond with a score of 9 to 10 are known as Promoters, and are widely associated with behaviors that create value, including actively encouraging others to use the product or service. Those who respond with a score of 7 or 8 are categorized as Passives, and they are believed to be less likely to exhibit the value-creation traits of Promoters having a largely neutral effect on other consumers. Detractors are those who fall in the score range of 0 to 6 and represent dissatisfied customers of the product sometimes actively recommending against using the product.
Female customers rated Quest Diagnostics's NPS 13 points higher than Male customers.
Quest Diagnostics's NPS was rated -57 by Male customers on Comparably.
Quest Diagnostics's NPS was rated -44 by Female customers on Comparably.
Quest Diagnostics's NPS was rated the highest by Other customers, and the lowest by Asian or Pacific Islander customers.
| Summary | Ethnicity | Score |
|---|---|---|
Caucasian -59 | Caucasian | -59 |
Hispanic or Latino -33 | Hispanic or Latino | -33 |
African American/Black -56 | African American/Black | -56 |
Asian or Pacific Islander -100 | Asian or Pacific Islander | -100 |
Other -17 | Other | -17 |
Quest Diagnostics's NPS was rated the highest by customers ages 36-40, and the lowest by customers ages 26-30.
Quest Diagnostics's NPS was rated the highest by customers who have used Quest Diagnostics's products/services for Over 10 Years, and the lowest by customers with 1 to 2 Years of usage.
| Summary | Usage | Score |
|---|---|---|
Less than 1 Year -58 | Less than 1 Year | -58 |
1 to 2 Years -63 | 1 to 2 Years | -63 |
2 to 5 Years -20 | 2 to 5 Years | -20 |
5 to 10 Years -33 | 5 to 10 Years | -33 |
Over 10 Years -9 | Over 10 Years | -9 |
Compared to its competitors, Quest Diagnostics's NPS is rated right above Sonic Healthcare, and is preceded by Laboratory Corporation of America Holdings.
Out of the 9 Quest Diagnostics customer reviews 3 were positive and 6 were constructive. Quest Diagnostics customer reviews reflect that more than half of the customers expect a better service or product from the company and believe there is room for improvement.
Customer Loyalty is a strong indicator of whether or not a customer will choose a brand repeatedly over a competitor that offers similar products/services.
67% of Quest Diagnostics users/customers answered "Yes" when asked: "Would you consider yourself a loyal user/customer?"
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Female customers rated Quest Diagnostics's Customer Loyalty score 15% higher than Male customers.
Quest Diagnostics's Customer Loyalty score was rated the highest by African American/Black customers, and the lowest by Asian or Pacific Islander customers.
% who answered "Yes"
Quest Diagnostics's Customer Loyalty score was rated the highest by customers ages 36-40, and the lowest by customers ages 26-30.
| Summary | Age | Score |
|---|---|---|
26-30 33% | 26-30 | 33% |
31-35 61% | 31-35 | 61% |
36-40 87% | 36-40 | 87% |
41-45 55% | 41-45 | 55% |
46-50 70% | 46-50 | 70% |
51-55 64% | 51-55 | 64% |
56-60 78% | 56-60 | 78% |
61-65 66% | 61-65 | 66% |
66+ 49% | 66+ | 49% |
Quest Diagnostics's Customer Loyalty score was rated the highest by customers who have used Quest Diagnostics's products/services for Over 10 Years, and the lowest by customers with Less than 1 Year of usage.
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Quest Diagnostics's Customer Loyalty score was rated the highest by Education industry customers, and the lowest by Arts and Entertainment industry customers.
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Compared to its competitors, Quest Diagnostics's Customer Loyalty score is rated right above Laboratory Corporation of America Holdings, and is preceded by Foundation Medicine.
| COMPANY | Customer Loyalty Score | |
|---|---|---|
![]() | Sonic Healthcare | 100% |
![]() | Thermo Fisher Scientific | 79% |
![]() | Foundation Medicine | 78% |
![]() | Quest Diagnostics | 67% |
![]() | Laboratory Corporation of America Holdings | N/A |
Quest Diagnostics has an overall Product Quality score of 2.9 out of 5 stars rated by its users and customers.
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Quest Diagnostics serves markets in the United States. Quest Diagnostics supports iOS and Web devices and offers products for small and large sized businesses.
Quest Diagnostics’s product quality score is a 2.9 out of 5 as rated by its users and customers. Reviewers from the Architecture and Planning industry rated Quest Diagnostics's product the highest. Reviewers from the Arts and Entertainment industry rated Quest Diagnostics the lowest at 1.5.
Quest Diagnostics's Product Quality score was rated highest by customers ages 36-40, and rated lowest by Asian or Pacific Islander customers.
Female customers rated Quest Diagnostics's Product Quality score 0.7 stars higher than Male customers.
Quest Diagnostics's Product Quality score was rated the highest by Other customers, and the lowest by Asian or Pacific Islander customers.
| Summary | Ethnicity | Score |
|---|---|---|
Caucasian 2 | Caucasian | 2 |
Hispanic or Latino 2.8 | Hispanic or Latino | 2.8 |
African American/Black 2.9 | African American/Black | 2.9 |
Asian or Pacific Islander 1.5 | Asian or Pacific Islander | 1.5 |
Other 3.2 | Other | 3.2 |
Quest Diagnostics's Product Quality score was rated the highest by customers ages 36-40, and the lowest by customers ages 66+.
| Summary | Age | Score |
|---|---|---|
26-30 3.2 | 26-30 | 3.2 |
31-35 2.7 | 31-35 | 2.7 |
36-40 3.5 | 36-40 | 3.5 |
41-45 2.6 | 41-45 | 2.6 |
46-50 3.2 | 46-50 | 3.2 |
51-55 2.1 | 51-55 | 2.1 |
56-60 1.9 | 56-60 | 1.9 |
61-65 2.2 | 61-65 | 2.2 |
66+ 1.5 | 66+ | 1.5 |
Quest Diagnostics's Product Quality score was rated the highest by customers who have used Quest Diagnostics's products/services for Over 10 Years, and the lowest by customers with Less than 1 Year of usage.
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Quest Diagnostics's Product Quality score was rated the highest by Architecture and Planning industry customers, and the lowest by Arts and Entertainment industry customers.
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Compared to its competitors, Quest Diagnostics's Product Quality score is rated right above Laboratory Corporation of America Holdings, and is preceded by Foundation Medicine.
| COMPANY | Product Quality Score | |
|---|---|---|
![]() | Sonic Healthcare | 4.5/5 |
![]() | Thermo Fisher Scientific | 3.9/5 |
![]() | Foundation Medicine | 3.5/5 |
![]() | Quest Diagnostics | 2.9/5 |
![]() | Laboratory Corporation of America Holdings | N/A |
Quest Diagnostics has a value for money and ROI score of 2.7 out of 5 stars rated by its users and customers.
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Quest Diagnostics has a pricing structure that accommodates small and large businesses.
Not every product or service fits the needs of a certain user or industry. The users that rank the value for money and ROI highest are mainly from Architecture and Planning industry. The users from the Arts and Entertainment industry think that they had the lowest ROI from Quest Diagnostics.
Quest Diagnostics's ROI score was rated highest by customers ages 46-50, and rated lowest by Asian or Pacific Islander customers.
Female customers rated Quest Diagnostics's ROI score 0.5 stars higher than Male customers.
Quest Diagnostics's ROI score was rated the highest by Other customers, and the lowest by Asian or Pacific Islander customers.
| Summary | Ethnicity | Score |
|---|---|---|
Caucasian 2.1 | Caucasian | 2.1 |
Hispanic or Latino 1.6 | Hispanic or Latino | 1.6 |
African American/Black 2.1 | African American/Black | 2.1 |
Asian or Pacific Islander 1.5 | Asian or Pacific Islander | 1.5 |
Other 2.6 | Other | 2.6 |
Quest Diagnostics's ROI score was rated the highest by customers ages 46-50, and the lowest by customers ages 66+.
| Summary | Age | Score |
|---|---|---|
26-30 2.6 | 26-30 | 2.6 |
31-35 2.4 | 31-35 | 2.4 |
36-40 3 | 36-40 | 3 |
41-45 2 | 41-45 | 2 |
46-50 3.3 | 46-50 | 3.3 |
51-55 1.9 | 51-55 | 1.9 |
56-60 2.1 | 56-60 | 2.1 |
61-65 1.8 | 61-65 | 1.8 |
66+ 1.8 | 66+ | 1.8 |
Quest Diagnostics's ROI score was rated the highest by customers who have used Quest Diagnostics's products/services for Over 10 Years, and the lowest by customers with Less than 1 Year of usage.
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Quest Diagnostics's ROI score was rated the highest by Architecture and Planning industry customers, and the lowest by Arts and Entertainment industry customers.
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Compared to its competitors, Quest Diagnostics's ROI score is rated right above Laboratory Corporation of America Holdings, and is preceded by Foundation Medicine.
| COMPANY | Pricing Score | |
|---|---|---|
![]() | Sonic Healthcare | 4.5/5 |
![]() | Thermo Fisher Scientific | 3.8/5 |
![]() | Foundation Medicine | 3.4/5 |
![]() | Quest Diagnostics | 2.7/5 |
![]() | Laboratory Corporation of America Holdings | N/A |
Quest Diagnostics has an overall Customer Satisfaction score of 45 rated by its users and customers.
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Customer Satisfaction Score (also known as CSAT), is a metric used to quantify how satisfied customers are with a company or brand’s products and services. The Customer Satisfaction Score is based on customers response to the question: “How would you rate your overall satisfaction with the service you received?” The score is calculated using the formula: (The total number answer of “Very Satisfied” and “Satisfied”) ÷ (The total response) x100, and it is generally displayed in percentages. Some of the main benefits of the CSAT for businesses are tracking retention, identifying happy customers and growing relationships, and gaining repeat business to build a sustainable brand.
Quest Diagnostics's Customer Satisfaction score was rated highest by Other customers, and rated lowest by customers from the Education industry.
Female customers rated Quest Diagnostics's Customer Satisfaction score 11 points higher than Male customers.
Very Satisfied | 12% | |
|---|---|---|
Satisfied | 9% | |
Neither Satisfied nor Dissatisfied | 9% | |
Dissatisfied | 9% | |
Very Dissatisfied | 61% |
Very Satisfied | 20% | |
|---|---|---|
Satisfied | 12% | |
Neither Satisfied nor Dissatisfied | 15% | |
Dissatisfied | 6% | |
Very Dissatisfied | 47% |
Quest Diagnostics' Customer Satisfaction (CSAT) score was rated 19% according to Caucasian users and customers.
Quest Diagnostics' Customer Satisfaction (CSAT) score was rated 33% according to Hispanic or Latino users and customers.
Quest Diagnostics' Customer Satisfaction (CSAT) score was rated 44% according to African American/Black users and customers.
Quest Diagnostics' Customer Satisfaction (CSAT) score was rated 0% according to Asian or Pacific Islander users and customers.
Quest Diagnostics' Customer Satisfaction (CSAT) score was rated 80% according to Other users and customers.
Quest Diagnostics's Customer Satisfaction score was rated the highest by customers ages 36-40, and the lowest by customers ages 66+.
| Breakdown | Age | Score | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 26-30 | 50% | |||||||||||||||
| 31-35 | 50% | |||||||||||||||
| 36-40 | 71% | |||||||||||||||
| 41-45 | 25% | |||||||||||||||
| 46-50 | 40% | |||||||||||||||
| 51-55 | 22% | |||||||||||||||
| 56-60 | 25% | |||||||||||||||
| 61-65 | 14% | |||||||||||||||
| 66+ | 4% |
Quest Diagnostics's Customer Satisfaction score was rated the highest by customers who have used Quest Diagnostics's products/services for 5 to 10 Years, and the lowest by customers with 1 to 2 Years of usage.
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Quest Diagnostics's Customer Satisfaction score was rated the highest by Architecture and Planning industry customers, and the lowest by Education industry customers.
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}Compared to its competitors, Quest Diagnostics's Customer Satisfaction score is rated right above Laboratory Corporation of America Holdings, and is preceded by Thermo Fisher Scientific.
| COMPANY | Customer Satisfaction (CSAT) Score | |
|---|---|---|
![]() | Sonic Healthcare | 100% |
![]() | Foundation Medicine | 78% |
![]() | Thermo Fisher Scientific | 74% |
![]() | Quest Diagnostics | 45% |
![]() | Laboratory Corporation of America Holdings | 0% |
Quest Diagnostics has an overall Customer Service score of 2.6 out of 5 stars rated by its users and customers.
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500 Plaza Drive, Secaucus, NJ 07094
http://questdiagnostics.com
1.866. 697.8378
Quest Diagnostics's Customer Service score was rated highest by customers ages 36-40, and rated lowest by Asian or Pacific Islander customers.
Female customers rated Quest Diagnostics's Customer Service score 0.6 stars higher than Male customers.
Quest Diagnostics's Customer Service score was rated the highest by Other customers, and the lowest by Asian or Pacific Islander customers.
| Summary | Ethnicity | Customer Service Score |
|---|---|---|
Caucasian 1.7 | Caucasian | 1.7 |
Hispanic or Latino 2.8 | Hispanic or Latino | 2.8 |
African American/Black 2.1 | African American/Black | 2.1 |
Asian or Pacific Islander 1.5 | Asian or Pacific Islander | 1.5 |
Other 3.4 | Other | 3.4 |
Quest Diagnostics's Customer Service score was rated the highest by customers ages 36-40, and the lowest by customers ages 66+.
| Summary | Age | Customer Service Score |
|---|---|---|
26-30 2.6 | 26-30 | 2.6 |
31-35 2.3 | 31-35 | 2.3 |
36-40 4 | 36-40 | 4 |
41-45 2.1 | 41-45 | 2.1 |
46-50 3 | 46-50 | 3 |
51-55 2 | 51-55 | 2 |
56-60 1.6 | 56-60 | 1.6 |
61-65 1.5 | 61-65 | 1.5 |
66+ 1.5 | 66+ | 1.5 |
Quest Diagnostics's Customer Service score was rated the highest by customers who have used Quest Diagnostics's products/services for 1 to 2 Years, and the lowest by customers with Less than 1 Year of usage.
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Quest Diagnostics's Customer Service score was rated the highest by Architecture and Planning industry customers, and the lowest by Arts and Entertainment industry customers.
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Compared to its competitors, Quest Diagnostics's Customer Service score is rated right above Laboratory Corporation of America Holdings, and is preceded by Foundation Medicine.
| COMPANY | Customer Service Score | |
|---|---|---|
![]() | Sonic Healthcare | 4.5/5 |
![]() | Thermo Fisher Scientific | 3.8/5 |
![]() | Foundation Medicine | 3.8/5 |
![]() | Quest Diagnostics | 2.6/5 |
![]() | Laboratory Corporation of America Holdings | N/A |
Quest Diagnostics has a 3.0/5 stars for its overall company culture rated by their employees

Quest Diagnostics scored a -16 for Net Promoter Score and a -10 for Employee Net Promoter Score. NPS gauges how likely a customer of Quest Diagnostics would recommend the brand to a friend. ENPS measures how likely Quest Diagnostics employees would recommend working at Quest Diagnostics to a friend.
| 34% | Promoters |
|---|---|
| 16% | Passive |
| 50% | Detractors |
| 36% | Promoters |
|---|---|
| 18% | Passive |
| 46% | Detractors |