My company has automated checkwriting and checkprinting with PrintBoss for the last 2 years. We have had no issues and whenever we need assistance for any reason, their service people have been responsive and helpful. We would recommend PrintBoss.
Bill.com - Bill.com provides ACH payments processing, automates your accounts payable and accounts receivable processes.
Online Check Writer - Online Check Writer is an all-in-one financial service provider with all kinds of payment options to pay and get paid.
AvidXchange - Liberate Your AP
Checkeeper - *Have your own check stock? Awesome, Checkeeper will work with virtually any type!
Tipalti - Tipalti is a supplier payments automation solution to streamline all phases of the AP and payment management workflow.
CheckSoft - Check printing software