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For more information about NSF services, please contact us.

Manufacturers, retailers, and other business professionals who would like to receive an estimate or who have general questions about NSF or its programs and services, get in touch.

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Contact one of our global offices to discuss our specific services in your area.

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Have Questions About Certified Products?

Consumers with questions about water filters, bottled water, faucets, dietary supplements, food safety, residential appliances or other consumer products are invited to contact our Consumer Affairs Office at +1 800 673 8010.

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Media Inquiries

Reporters, producers, and editors looking for background information and interviews on an array of public health and safety topics are invited to contact our media relations team.

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Regulatory Affairs

For more information about NSF's regulatory affairs services, please contact our Regulatory Affairs Hotline at +1 734 769 5105.

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Please Be Aware

NSF will never call, email, or text to solicit donations or ask for money. If you receive a call, email or text from someone claiming to be from NSF and requesting money, please report the incident to the Federal Trade Commission.