The CoronaMelder app is available

No, you cannot. Use of the CoronaMelder app (the Dutch COVID-19 app used to trace coronavirus infections) is entirely voluntary. The Tijdelijke wet notificatieapplicatie covid-19 (Temporary Act for COVID-19 Apps) regulates the privacy of the application. Both chambers of the Government of the Netherlands have approved the temporary act. It regulates that no-one can be compelled, either directly or indirectly, to use the CoronaMelder app.

Notification

The purpose of the CoronaMelder app is to curb the spread of the coronavirus. Users of the app will receive a notification when they have been near an individual for at least fifteen minutes who has been tested positive for the virus afterwards. Moreover, the app will give advice on what the users must do in this situation. The app is an addition to research carried out by the GGD (Municipal Health Institute). It was initially tested in five different regions of the Netherlands; but after the temporary act had been approved by the upper house of government, the app was launched nationwide.
The CoronaMelder app gives privacy-sensitive information about the health of your employees. Medical information is subject to the General Data Protection Regulation (GDPR). You are not allowed to have access to this information. Therefore, you cannot compel employees to install the CoronaMelder app on their phones, neither on their personal phones nor on a phone provided by the organization.