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Customer Services
If you need to send files in a secure manner to Grontmij employees, please click here to use our Large File Exchange service. With this service you can send large files which cannot be sent via e-mail.

Employee Services
These services are for employees only and require a username and a password.

Webmail

Large File Exchange for Grontmij Employees

Change Password

iShare

BST


Service Announcements
If you cannot login to Webmail or iShare, your password may be expired. Use Change Password to resolve this.