The Department of Commerce is placing restrictions on a person and a company in the United Arab Emirates for supplying Syria with Internet-filtering devices made by California-based Blue Coat Systems Inc.

On Thursday, Commerce said it put Waseem Jawad and the Ras Al Khaimah-based company Info Tech, also known as Infotec, on a list of people and institutions determined to "have engaged in activities contrary to U.S. national security and/or foreign policy interests."

The...