Simplifi has the ability to create businesses. However, it would be helpful to allow businesses to be tracked with ownership percentages to build a hierarchy.
Also related, allow percentages to define the value that rolls up to both the Account Value and Net Worth value (in fact, this could also replace the simple binary toggle for On/Off as to whether to include an account in Net Worth, and instead just allow the user to apply a %, which could be 0% in some cases).