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.
Sage Intacct - Intacct is a cloud-based accounting and financial management system that is designed for the businesses of all levels.
ChargeOver - ChargeOver automates recurring billing, subscription billing, & payment acceptance. A SaaS that integrates with Xero, Quickbooks, & has an API. Free trial.
Diversiview Online - Portfolio Analysis and Optimisation software for retail investors and investment advisors.
fusebill - Fusebill is the leading recurring billing and subscription management software for businesses. Try Fusebill for subscription billing made easy!
SoftLedger - Cloud-based accounting solution for SMBs