Hebrew to English Bus/Financial Finance (general)

My text has a previous reference to products for the אלפיון עליון, which has been translated as products for "high-net-worth" clients in the past. This time there are two separate products, one targeted to the עשירון עליון and one to the אלפיון עליון. I'm looking for the English terms to make the distinction.

This does not refer to the exact statistical upper decile or tenth of percentile - the reference is to the market segment of rich and very rich people. However, it is a corporate document and I need to find a term that is commonly used in marketing etc., rather than just a description like "very rich".

Thanks!