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Company     >    The Nielsen Code

The Nielsen Code

Arthur C. Nielsen, Sr.

Chairman, A. C. Nielsen Company, 1931

In 1931, Arthur C. Nielsen, Sr., wrote the Nielsen Code, defining the principles that would guide Nielsen to global leadership in marketing research. The Code remains relevant today and continues to guide our business.

Impartiality

Be influenced by nothing but your clients' interests. Tell them the truth.

Thoroughness

Accept business only at a price permitting thoroughness. Then do a thorough job, regardless of cost to us.

Accuracy

Watch every detail that affects the accuracy of your work.

Integrity

Keep the problems of clients and prospects confidential. Divulge information only with their consent.

Economy

Employ every economy consistent with thoroughness, accuracy and reliability.

Price

Quote prices that will yield a fair profit. Never change your price unless warranted by a change in specifications.

Delivery

Give your clients the earliest delivery consistent with quality - whatever the inconvenience to us.

Service

Leave no stone unturned to help your clients realize maximum profits from their investment.






Throughout its history, Nielsen has sought to provide its clients with objective and reliable marketing information and consumer insight that add value to their businesses. Our goal is to help clients make the best possible marketing decisions to build revenue and profits.

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