Onboarding for corporate accounts with brokerages – consistently clunky?

Been expanding our operations and hitting a wall with the onboarding process for corporate accounts across several brokers lately. It seems like the KYC/KYB is still a huge bottleneck, even for established entities with clear corporate structures. Has anyone else experienced this, particularly when trying to get multiple accounts set up for different trading strategies or funds? It feels like we're constantly re-submitting the same documentation or dealing with long verification times. Curious if this is just my recent experience or a wider industry challenge.