CashController.nl - CashController is financial software to control your cashflow.
ChargeOver - ChargeOver automates recurring billing, subscription billing, & payment acceptance. A SaaS that integrates with Xero, Quickbooks, & has an API. Free trial.
Payference - Payference is a cash flow and treasury management service that allows you to manage cash flows, expenses, and taxes.
Elorus - A super-easy online invoicing & time tracking software
TEMENOS T24 - TEMENOS T24 is a smart banking software that offers tons of the facilities and functions for your core banking operations and monitors various transactions in the management software.
MinuteDock - Web-based time tracking software designed to integrate with the Xero accounting package.