What broker do my investors trade with? And what brokerage do they pay?

Investors trade with our regulated broker, in this case using our white-label commercial name.

Darwinex and Darwinex Pro investors trade as a block for the same brokerage charges. 

Note that Darwinex Pro investors pay the fee schedule you set (performance and management fees), plus the platform fee, whereas Darwinex sets fees for DARWIN investors.