

Serving citizens, industry, and the environment.
ZOLL's Net Promoter Score (NPS) is a 33 with 58% Promoters, 17% Passives, and 25% Detractors. Net Promoter Score tracks whether ZOLL's customers would recommend using the product based on a scale of -100 to 100.
| 58% | Promoters |
|---|---|
| 17% | Passives |
| 25% | Detractors |
| Summary | Date | Score |
|---|---|---|
Feb 2023 34 | Feb 2023 | 34 |
Mar 2023 35 | Mar 2023 | 35 |
Apr 2023 37 | Apr 2023 | 37 |
May 2023 44 | May 2023 | 44 |
Aug 2023 46 | Aug 2023 | 46 |
Nov 2023 38 | Nov 2023 | 38 |
May 2024 39 | May 2024 | 39 |
Jun 2024 40 | Jun 2024 | 40 |
Jul 2024 36 | Jul 2024 | 36 |
Sep 2024 31 | Sep 2024 | 31 |
Oct 2024 35 | Oct 2024 | 35 |
Sep 2025 33 | Sep 2025 | 33 |
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.
ZOLL's NPS was rated 40 by Male customers on Comparably.
ZOLL's NPS was rated 40 by Male customers on Comparably.
ZOLL's NPS is not yet rated by Female customers.
ZOLL's NPS was rated 34 points by Caucasian customers on Comparably.
| Summary | Ethnicity | Score |
|---|---|---|
Caucasian 34 | Caucasian | 34 |
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 ZOLL users/customers answered "Yes" when asked: "Would you consider yourself a loyal user/customer?"
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ZOLL's Customer Loyalty score was rated 82 by Male customers on Comparably.
ZOLL's Customer Loyalty score was rated 70% by Caucasian customers on Comparably.
% who answered "Yes"
ZOLL has an overall Product Quality score of 3.7 out of 5 stars rated by its users and customers.
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ZOLL’s product quality score is a 3.7 out of 5 as rated by its users and customers.
ZOLL's Product Quality score was rated highest by Male customers.
ZOLL's Product Quality score was rated 4.1 by Male customers on Comparably.
ZOLL's Product Quality score was rated 3.5 stars by Caucasian customers on Comparably.
| Summary | Ethnicity | Score |
|---|---|---|
Caucasian 3.5 | Caucasian | 3.5 |
ZOLL has a value for money and ROI score of 3.9 out of 5 stars rated by its users and customers.
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ZOLL's ROI score was rated highest by Male customers.
ZOLL's ROI score was rated 3.8 by Male customers on Comparably.
ZOLL's ROI score was rated 3.3 stars by Caucasian customers on Comparably.
| Summary | Ethnicity | Score |
|---|---|---|
Caucasian 3.3 | Caucasian | 3.3 |
ZOLL has an overall Customer Satisfaction score of 77 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.
ZOLL's Customer Satisfaction score was rated highest by Male customers.
ZOLL's Customer Satisfaction score was rated 80 by Male customers on Comparably.
Very Satisfied | 80% | |
|---|---|---|
Satisfied | 0% | |
Neither Satisfied nor Dissatisfied | 0% | |
Dissatisfied | 0% | |
Very Dissatisfied | 20% |
ZOLL's Customer Satisfaction (CSAT) score was rated 67% according to Caucasian users and customers.
ZOLL has an overall Customer Service score of 4 out of 5 stars rated by its users and customers.
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Chelmsford, MA
http://www.zoll.de/
ZOLL's Customer Service score was rated highest by Male customers.
ZOLL's Customer Service score was rated 4.3 by Male customers on Comparably.
ZOLL's Customer Service score was rated 4.1 stars by Caucasian customers on Comparably.
| Summary | Ethnicity | Customer Service Score |
|---|---|---|
Caucasian 4.1 | Caucasian | 4.1 |
ZOLL has a 3.4/5 stars for its overall company culture rated by their employees

ZOLL scored a 33 for Net Promoter Score and a -6 for Employee Net Promoter Score. NPS gauges how likely a customer of ZOLL would recommend the brand to a friend. ENPS measures how likely ZOLL employees would recommend working at ZOLL to a friend.
| 58% | Promoters |
|---|---|
| 17% | Passive |
| 25% | Detractors |
| 33% | Promoters |
|---|---|
| 28% | Passive |
| 39% | Detractors |