Investors say these 8 businesses seem Amazon-proof

It's no secret that Amazon is a major threat to many businesses.

From its humble origins as an online bookseller, Amazon has expanded its business into groceries, streaming, cloud computing, advertising, and transportation logistics, to name a few. In the wake of recent rumors that it may be entering the athleisure market, it may seem that no business is safe from Amazon.

That may not be true, according to a recent investor survey from Morgan Stanley Research. Investors indicated that these eight industries are the least likely to be threatened by Amazon anytime soon.