What does DYC stand for?

Dalmys (Canada) Ltd. - Toronto Stock Exchange symbol

Dawson Yacht Corp., Clearwater, FL - Manufacturer code for watercraft hull identification number (USCG)

Detroit Yacht Club (SAUS)

Direct Yaw Control - Automotive engineering

Dominion Yeast Company (SAUO)

Dycam, Inc. - AMEX symbol (SAG)