monday CRM - monday sales CRM is a customizable customer relationship management software for every business with support for unlimited leads and accounts and prepaid plans.

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.

Composity - Composity is software solution for more efficient business! CRM, Inventory, POS, Invoicing, Financials and Accounting, Sales and Purchase modules, Document management, Website and eCommerce

ChargeOver - ChargeOver automates recurring billing, subscription billing, & payment acceptance. A SaaS that integrates with Xero, Quickbooks, & has an API. Free trial.

Bigin by Zoho CRM - Pipeline-centric CRM built and priced for small businesses

Elorus - A super-easy online invoicing & time tracking software