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.
Procurify - Reinvent the way organizations spend to make the purchasing process more accessible, manageable and convenient.
ChargeOver - ChargeOver automates recurring billing, subscription billing, & payment acceptance. A SaaS that integrates with Xero, Quickbooks, & has an API. Free trial.
Precoro - Precoro is a robust procure-to-pay system for your business. Automated purchasing, simple sourcing and spend analytics — all in one easy-to-use platform!
MinuteDock - Web-based time tracking software designed to integrate with the Xero accounting package.
Ariba - Ariba is a software and information technology services platform providing companies with collaborative business commerce solutions.