Evidence · Claim check
Does Net Promoter Score predict company growth?
Contradicted by the evidenceNo. The most thorough longitudinal test found that Net Promoter Score did not predict firm revenue growth better than a standard customer satisfaction index, and independent studies find NPS behaves like other satisfaction measures. NPS can still be a useful operational metric; it is not a uniquely superior growth predictor.
The claim
Net Promoter Score is the single best, or a sufficient stand-alone, predictor of a company's revenue growth.
Why it could be true: Willingness to recommend goes together with satisfaction, and satisfied customers can spread word of mouth. Nothing in that mechanism makes one attitudinal question outperform other customer metrics at predicting growth.
Verdict by context
- Companies, mainly consumer services: Contradicted by the evidence, moderate certainty. The verdict rests on one rigorous longitudinal re-analysis of 21 firms in Norway, backed by independent correlational studies. It concerns the claim of superiority, not whether NPS is useful at all.
The evidence
| Role | Finding | Study | Design |
|---|---|---|---|
| Contradicts | Across 21 Norwegian firms and more than 15,000 interviews over time, NPS did not predict revenue growth better than the American Customer Satisfaction Index.[1] | Keiningham et al. (2007) | Longitudinal observational |
| Context | In hotels, NPS and customer satisfaction are closely related, which is what one would expect if NPS is one satisfaction measure among others.[2] | Baquero (2022) | Observational |
| Context | Share of wallet depends on how a brand ranks against competitors, not only on how satisfied or willing to recommend customers are.[3] | Buoye et al. (2016) | Observational, multi-country |
| Context | Switching costs change how strongly satisfaction turns into loyalty, one reason a single attitude score cannot carry the whole prediction.[4] | Lee et al. (2001) | Observational |
What this does not say
- It does not show that NPS is a useless metric. It can still track customer experience inside a company.
- It does not settle the broader relationship between satisfaction and loyalty, which is a separate and wider question.
Relevant work not yet reviewed here
- Reichheld (2003), Harvard Business Review: the original article that proposed NPS as the one number needed to grow.
References
- Timothy L. Keiningham, Bruce Cooil, Tor Wallin Andreassen, Lerzan Aksoy (2007). A Longitudinal Examination of Net Promoter and Firm Revenue Growth. Journal of Marketing.
- Asier Baquero (2022). Net Promoter Score (NPS) and Customer Satisfaction: Relationship and Efficient Management. Sustainability.
- Alexander Buoye, Yuliya Komarova Loureiro, Sertan Kabadayi, Mohammad G. Nejad, Timothy L. Keiningham, Lerzan Aksoy, Jason Allsopp (2016). Is share of wallet exclusively about making customers happy or having more customers? Exploring the relationship between satisfaction and double jeopardy. Journal of service management.
- Jonathan Lee, Janghyuk Lee, Lawrence Feick (2001). The impact of switching costs on the customer satisfaction-loyalty link: mobile phone service in France. Journal of Services Marketing.
Bibliographic details only. Follow the DOI to read each study at its publisher.
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Claim check written by ScholarSignal. Last reviewed 2026-09-26.
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