After some research, a company that I found that Amazon.com uses one on one marketing. Amazon offers users targeted offers and related products. Once a customer of Amazon buys a product, Amazon will offer other products that the consumer might like based off of what they had purchased in the past.
As an Amazon user myself, I think that this company is doing very well using the one on one marketing. Whenever I purchase a product from Amazon, they always recommend me another product that I may be interested in or something similar to what I have already purchased. Overall, I feel that Amazon has a great amount of success from one on one marketing.