Trucking startup? Convoy sounds like an ordinary freight exchange to me, where truckers trade available loading space against transport orders. For each assigned order, the trucker pays a transaction fee to the platform. Plus there are additional services like factoring: get paid immediately by the platform instead of 30 days later by the shipper, platform usually keeps 5% commission for this.

Dozens of platforms like this exist in Europe, not sure why everybody makes a fuss about it.