My startup is smack in the middle of this because we deliver snacks and beverages to silicon valley companies and buy direct from manufacturers (bbf.io/snacks) - indeed, there are crazy battles far beyond vita coco and zico, including easily a half dozen others, all offering deals.

Copra and Harmless indeed are awesome, but they're also 2-3x the cost, which is prohibitive for most people. They also have very short shelf-life, which makes it hard to scale. Shelf-stable coconut waters last 6+ months.

Coconut water isn't half as competitive as energy and protein bars. I have stories...