UptimeRobot - Free Website Uptime Monitoring
Oracle NetSuite - NetSuite is the leading integrated cloud business software suite, including business accounting, ERP, CRM and ecommerce software.
Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
FreshBooks - The ideal accounting software for small business owners.
Uptime Kuma - A fancy self-hosted monitoring tool.
SAP ERP - SAP ERP is enterprise resource planning software developed by the German company SAP SE.