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Our address is:

The Northstar Group, Inc.
577 Capital Drive
Lake Zurich, Illinois 60047

Our phone and fax numbers are:

Phone: 847-726-0880
Fax: 847-726-1220

Client Code

Cost Center

User Name

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Please Note: We are now directing your login requests directly to our secure server. When you log in, you will be automatically redirected to https://qnet.e-quantum2k.com to ensure that your order will be as secure as possible. Other than that, your ordering experience should remain the same. Please contact us if you have any questions.