What does SGK stand for?

What does SGK mean?

SGK	Schawk, Inc. Business » NYSE Symbols
SGK	Sherrard, German, & Kelly, P.C. Business » Firms
SGK	Sherrard, German, & Kelly, P.C. Community » Law
SGK	Susan G. Komen Community » Famous
SGK	Susan G. Komen Breast Cancer Foundation Community » Non-Profit Organizations
SGK	Small Generating Kernel Computing » Software
SGK	Sangapi, Papua New Guinea Regional » Airport Codes
SGK	Schweizerische Gesellschaft fur Kartographie Academic & Science » Universities