iNiLabs - Visitor Pass Management System is a system for all kind of company or business organizations.
Demo: https://codecanyon.net/item/visitor-pass-management-system/24643230
QuickPass is a system for all types of companies or business organizations. Various types of SMS gateways are available (Twilio and African SMS gateway).
Demo: https://codecanyon.net/item/visitor-pass-management-system/24643230