Klien-IT-Systems BV The all-in-one software package for your cleaning company As a cleaning company you know how important it is to keep a good overview of all your projects. Klien-IT-Systems brings peace and order. You can automate all processes within your cleaning company with one software package. We distinguish ourselves through the extensive and complete software package with progressive modules. Think of a complete planning system, key registration, clock in and out, invoicing and integrated accounting system!