Demonstrating the success of the Net Promoter Score methodology to skeptical senior management can sometimes be difficult. It is especially so if you are trying to prove it before your organisation has implemented any changes.
One way to prove the value of NPS® is to use external success stories and case studies to show what has been done by other organisations. Unfortunately, finding those case studies can be very difficult.
To try to overcome this issue, I have decided to create a list of case studies and references that are public domain. This blog post will be updated whenever I have new material.
This is an adjunct to my other source list post: Net Promoter Score Research: the “for” and “against” list
If you have results or a link to a published article, presentation or other source please use the comment box below to let me know and I’ll add it to this list so we can all benefit.
NPS Improvement Statistics: Case Studies and Success Stories
Statistic 1. Business Telco provider used NPS process to increase orders by 150% [Tweet this stat]
Statistic 2. IT Product Supplier used NPS process and identified new opportunities in 39% of follow-up meetings [Tweet this stat]
Statistic 3. IT Vendor used NPS process and doubled growth rate in accounts that participated [Tweet this stat]
Statistic 4. According to Forrester, Customer Experience affects the bottom line: Annual revenue change from a modest shift in customer experience for a $10billion company [Tweet this stat]
- Buying more products: $64million
- Reduction in churn: $116 million
- Word of mouth $103million
Statistic 5. Global Comms business identified the need to improve order processing that increased loyalty and improved margins. Increased sales by 13% in a single digit growth industry [Tweet this stat]
Statistic 6. A Global B2B has a quarterly review of results and action plans with Executive team, team leaders, sales leaders. Achieved 100%+ increase in loyalty, double digit growth in mature market [Tweet this stat]
Statistic 7. According to Forrester, a Global Facilities company improved their retention rates by 46%, using the Net Promoter process. [Tweet this stat]
Statistic 8. The image below shows a chart of Customer Lifetime Value Vs. NPS. If you review it you will see that the Promoters (9 or 10) make up 40% and Detractors (0-6) make up 24% of the highest value group. [Tweet this stat]

Statistic 9. The chart below shows that Net Promoter Score and Ratings are mostly correlated for A&E Television shows. Low NPS drives Low Ratings, High NPS drives High ratings. [Tweet this stat]

Statistic 10. A major Telecom company was able to deliver a 25 point increase in NPS which lead to a 3% reduction in early life churn and a 5% increase in first call resolution. [Tweet this stat]
Statistic 11. The chart below shows that Allianz operating units with a high NPS have a higher overall compound annual growth rate (CAGR) than those with lower overall NPS scores. [Tweet this stat]

Statistic 12. The chart below shows that in stores with a high NPS customers bought one or more product 20% more of the time than stores with a low Net Promoter Score [Tweet this stat]

Statistic 13. Swiss Re found that there was a clear relationship between NPS and Long-Term Rate Adequacy. Strong Promoters (100) pay about 5% more than Passives (0) and 10% more than low Detractors (-100). [Tweet this stat]

Statistic 14. eBay found, see chart below, that the average GMB (revenue score) is consistently higher for Promoters than Detractors, across their 6 top markets. [Tweet this stat]

Statistic 15. “Maersk correlated a 4 point increase in Net Promoter Scores with a 1% increase in additional volume shipped by customers”. Training improves Net Promoter Scores in local regions. “Maersk gave regional divisions the option of putting regional customer experience councils in place. The 55 regions that have set up local councils also received a three-day training course in customer experience improvement methods. The firm then did a study comparing regions with and without a council. The result: participating local offices score 10 points higher on their NPS than those offices that opted out”. [Tweet this stat]
Statistic 16. For nib health funds is one of Australia’s leading and fastest growing health fund, The risk of attrition for Detractor respondents is 1.5 times that of Promoter respondents. Plus a one point increase in “Would Recommend” score results in a decreased of risk of termination by 7.8% [Tweet this stat]
Statistic 17. More statistics showing that NPS and Revenue Compound Annual Growth Rate ( CAGR) are linked. [Tweet this stat]

Statistic 18. Amex says: “We track [NPS]all the way to shareholder value. For a promoter who is positive on American Express, we see a 10% to 15% increase in spending and four to five times increased retention, both of which drive shareholder value. In fact our operating expenses associated with service have gone down because we’re more streamlined, and we limit friction points and errors. [Tweet this stat]
Statistic 19. NPS links well to market share momentum for Tech Companies. Temkin Group recently surveyed 800 IT professionals from large companies. They asked the IT professionals how much their company was planning to spend in 2012 compared with 2011 and mapped this data with NPS and asked them a series of questions about tech vendors. The result is below. [Tweet this stat]
Full story: Net Promoter Score and Market Share For 60 Tech Vendors

Statistic 20. Orange France has identified that NPS is highly correlated with churn propensity. [Tweet this stat]

Full story: Orange France – Using NPS as a Lever for Organizational Change
Statistic 21: Progressive Crop. has identified a solid correlation between NPS and insurance policy customer retention: [Tweet this stat]
“Three things that I want you to note from this overall segmentation. First, solid correlation between policy life expectancy and Net Promoter Score. So while we monitor, measure and act on Net Promoter Score and make investments to move that, we’re investing to improve our policy life expectancy.”
Source: The Progressive Corporation Investor Relations Meeting
Statistic 22: Teletech reports that after NPS methodologies were implemented at one organisation…
NPS increased by 20 percent …
Furthermore, sales and revenue significantly increased. The chat sales conversion rate went up by more than 62 percent, while the amount of revenue generated for chat interactions went up by more than 51 percent.
More Information
If you are thinking about implementing Net Promoter Score (NPS) in your organisation give us a call. We can help you to implement a best practice Net Promoter Score program for your business.
Links to Source Documents
Some of these documents may require you to have access to a specific site. We cannot help you gain access to those site(s), you must do so yourself.
(1) Satmetrix, Improving Net Promoter Scores in Business to Business Relationships Net Promoter Conference 2009
By Adam Ramshaw





[...] Just measuring NPS will not drive business value: you have to put in place a process to measure, understand and make change, to capture the benefits of NPS. [...]