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3500 Lacey Road, Suite 100
Downers Grove, IL 60515
Phone: 630.678.8300
Fax: 630.678.8384

International Offices

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Customer Service

Visit our Help section for more than 70 articles with answers to the most common questions we receive.

If you would like to talk to our Customer Service team by phone, you can reach us at 866.835.8020, option 2. Our representatives are available to assist you Monday to through Friday from 9 a.m. to 5 p.m. CT.

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After receiving a CompTIA A+ certification, I immediately got my first job with a good salary. Having this certification gives me more confidence.
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System Administrator, Radiant

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