ChargeOver - ChargeOver automates recurring billing, subscription billing, & payment acceptance. A SaaS that integrates with Xero, Quickbooks, & has an API. Free trial.
Dext - Receipt Bank converts key information from your bills, receipts and invoices into data you and your company can use! No obligation Free Trial available.
BillGrid.com - BillGrid is an easy to use online invoicing, billing and expense management system that will save you time with tracking clients projects, expenses, invoices and payments.
DOKKA.com - The Future has Arrived: Accounting Process Automation
fusebill - Fusebill is the leading recurring billing and subscription management software for businesses. Try Fusebill for subscription billing made easy!
EntryRocket - Simplify your bookkeeping by automating file imports into Xero.