Consider Venbooks!
Venbooks is an order tracking and accounting software. From what I see the paid subscription only starts after you have received/recorded 74 orders. The reason I suggest Venbooks is that they have a comprehensive list of signing companies right there in the app. They have 3 groups of company listings: (1) automated order creation enabled companies, (2) Signing Order platform sync companies, and (3) blacklisted companies
Many new notaries are asking for information on signing companies…I think this is a good place to find them.
I hope this helps, it helped me.