Bitmain is it. That company is the main source of wealth and backing that BCash relies on. If Bitmain pulls back, BCash will turn into BTG within months.

BCash represents both an attack on Bitcoin (which failed), and a backup SHA256 network allowing redundant gear to keep hashing in a profitable manner (which they succeeded in).

How exactly have Bitcoin holders benefited from BCash other than selling their fork coins? It's not just free money that's handed over to them; if the attack succeeded Bitcoin would have proven to be easy to attack and take over. It was straight Russian roulette with potentially a catastrophic outcome. People don't realize how bad the situation at that point was. It's the first ever corporate takeover attempt.