Is Puritan's Pride a subsidiary of Nature's Bounty?

I've ordered from Puritan's Pride for 30 years and never heard of Nature's Bounty.

I too am a longterm customer of Puritan's Pride. I checked with them directly and according to Puritan's Pride, Nature's Bounty is their sister company, as are Vitamin World and many other companies, including many supermarket and discount store private label supplements. Last summer when I was visiting a cousin in London and I needed some supplements, she took me to a store called Holland and Barrett. You guessed it -- they're also a sister company of Puritan's Pride!